WebSVN – Applications.papyrus – Diff – /trunk/api/pear/DB/ifx.php


<?php
 
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
 
/**
 * The PEAR DB driver for PHP's ifx extension
 * for interacting with Informix databases
 *
 * PHP versions 4 and 5
 *
 * LICENSE: This source file is subject to version 3.0 of the PHP license
 * that is available through the world-wide-web at the following URI:
 * http://www.php.net/license/3_0.txt.  If you did not receive a copy of
 * the PHP License and are unable to obtain it through the web, please
 * send a note to license@php.net so we can mail you a copy immediately.
 *
 * @category   Database
 * @package    DB
 * @author     Tomas V.V.Cox <cox@idecnet.com>
 * @author     Daniel Convissor <danielc@php.net>
 * @copyright  1997-2005 The PHP Group
 * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
 * @version    CVS: $Id: ifx.php,v 1.2 2005-09-20 17:01:22 ddelon Exp $
 * @link       http://pear.php.net/package/DB
 */
 
/**
 * Obtain the DB_common class so it can be extended from
 */
require_once 'DB/common.php';
 
/**
 * The methods PEAR DB uses to interact with PHP's ifx extension
 * for interacting with Informix databases
 *
 * These methods overload the ones declared in DB_common.
 *
 * More info on Informix errors can be found at:
 * http://www.informix.com/answers/english/ierrors.htm
 *
 * TODO:
 *   - set needed env Informix vars on connect
 *   - implement native prepare/execute
 *
 * @category   Database
 * @package    DB
 * @author     Tomas V.V.Cox <cox@idecnet.com>
 * @author     Daniel Convissor <danielc@php.net>
 * @copyright  1997-2005 The PHP Group
 * @license    http://www.php.net/license/3_0.txt  PHP License 3.0
 * @version    Release: @package_version@
 * @link       http://pear.php.net/package/DB
 */
class DB_ifx extends DB_common
{
    // {{{ properties
 
    /**
     * The DB driver type (mysql, oci8, odbc, etc.)
     * @var string
     */
    var $phptype = 'ifx';
 
    /**
     * The database syntax variant to be used (db2, access, etc.), if any
     * @var string
     */
    var $dbsyntax = 'ifx';
 
    /**
     * The capabilities of this DB implementation
     *
     * The 'new_link' element contains the PHP version that first provided
     * new_link support for this DBMS.  Contains false if it's unsupported.
     *
     * Meaning of the 'limit' element:
     *   + 'emulate' = emulate with fetch row by number
     *   + 'alter'   = alter the query
     *   + false     = skip rows
     *
     * @var array
     */
    var $features = array(
        'limit'         => 'emulate',
        'new_link'      => false,
        'numrows'       => 'emulate',
        'pconnect'      => true,
        'prepare'       => false,
        'ssl'           => false,
        'transactions'  => true,
    );
 
    /**
     * A mapping of native error codes to DB error codes
     * @var array
     */
    var $errorcode_map = array(
        '-201'    => DB_ERROR_SYNTAX,
        '-206'    => DB_ERROR_NOSUCHTABLE,
        '-217'    => DB_ERROR_NOSUCHFIELD,
        '-236'    => DB_ERROR_VALUE_COUNT_ON_ROW,
        '-239'    => DB_ERROR_CONSTRAINT,
        '-253'    => DB_ERROR_SYNTAX,
        '-292'    => DB_ERROR_CONSTRAINT_NOT_NULL,
        '-310'    => DB_ERROR_ALREADY_EXISTS,
        '-316'    => DB_ERROR_ALREADY_EXISTS,
        '-319'    => DB_ERROR_NOT_FOUND,
        '-329'    => DB_ERROR_NODBSELECTED,
        '-346'    => DB_ERROR_CONSTRAINT,
        '-386'    => DB_ERROR_CONSTRAINT_NOT_NULL,
        '-391'    => DB_ERROR_CONSTRAINT_NOT_NULL,
        '-554'    => DB_ERROR_SYNTAX,
        '-691'    => DB_ERROR_CONSTRAINT,
        '-692'    => DB_ERROR_CONSTRAINT,
        '-703'    => DB_ERROR_CONSTRAINT_NOT_NULL,
        '-1204'   => DB_ERROR_INVALID_DATE,
        '-1205'   => DB_ERROR_INVALID_DATE,
        '-1206'   => DB_ERROR_INVALID_DATE,
        '-1209'   => DB_ERROR_INVALID_DATE,
        '-1210'   => DB_ERROR_INVALID_DATE,
        '-1212'   => DB_ERROR_INVALID_DATE,
        '-1213'   => DB_ERROR_INVALID_NUMBER,
    );
 
    /**
     * The raw database connection created by PHP
     * @var resource
     */
    var $connection;
 
    /**
     * The DSN information for connecting to a database
     * @var array
     */
    var $dsn = array();
 
 
    /**
     * Should data manipulation queries be committed automatically?
     * @var bool
     * @access private
     */
    var $autocommit = true;
 
    /**
     * The quantity of transactions begun
     *
     * {@internal  While this is private, it can't actually be designated
     * private in PHP 5 because it is directly accessed in the test suite.}}
     *
     * @var integer
     * @access private
     */
    var $transaction_opcount = 0;
 
    /**
     * The number of rows affected by a data manipulation query
     * @var integer
     * @access private
     */
    var $affected = 0;
 
 
    // }}}
    // {{{ constructor
 
    /**
     * This constructor calls <kbd>$this->DB_common()</kbd>
     *
     * @return void
     */
    function DB_ifx()
    {
        $this->DB_common();
    }
 
    // }}}
    // {{{ connect()
 
    /**
     * Connect to the database server, log in and open the database
     *
     * Don't call this method directly.  Use DB::connect() instead.
     *
     * @param array $dsn         the data source name
     * @param bool  $persistent  should the connection be persistent?
     *
     * @return int  DB_OK on success. A DB_Error object on failure.
     */
    function connect($dsn, $persistent = false)
    {
        if (!PEAR::loadExtension('informix') &&
            !PEAR::loadExtension('Informix'))
        {
            return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
        }
 
        $this->dsn = $dsn;
        if ($dsn['dbsyntax']) {
            $this->dbsyntax = $dsn['dbsyntax'];
        }
 
        $dbhost = $dsn['hostspec'] ? '@' . $dsn['hostspec'] : '';
        $dbname = $dsn['database'] ? $dsn['database'] . $dbhost : '';
        $user = $dsn['username'] ? $dsn['username'] : '';
        $pw = $dsn['password'] ? $dsn['password'] : '';
 
        $connect_function = $persistent ? 'ifx_pconnect' : 'ifx_connect';
 
        $this->connection = @$connect_function($dbname, $user, $pw);
        if (!is_resource($this->connection)) {
            return $this->ifxRaiseError(DB_ERROR_CONNECT_FAILED);
        }
        return DB_OK;
    }
 
    // }}}
    // {{{ disconnect()
 
    /**
     * Disconnects from the database server
     *
     * @return bool  TRUE on success, FALSE on failure
     */
    function disconnect()
    {
        $ret = @ifx_close($this->connection);
        $this->connection = null;
        return $ret;
    }
 
    // }}}
    // {{{ simpleQuery()
 
    /**
     * Sends a query to the database server
     *
     * @param string  the SQL query string
     *
     * @return mixed  + a PHP result resrouce for successful SELECT queries
     *                + the DB_OK constant for other successful queries
     *                + a DB_Error object on failure
     */
    function simpleQuery($query)
    {
        $ismanip = DB::isManip($query);
        $this->last_query = $query;
        $this->affected   = null;
        if (preg_match('/(SELECT)/i', $query)) {    //TESTME: Use !DB::isManip()?
            // the scroll is needed for fetching absolute row numbers
            // in a select query result
            $result = @ifx_query($query, $this->connection, IFX_SCROLL);
        } else {
            if (!$this->autocommit && $ismanip) {
                if ($this->transaction_opcount == 0) {
                    $result = @ifx_query('BEGIN WORK', $this->connection);
                    if (!$result) {
                        return $this->ifxRaiseError();
                    }
                }
                $this->transaction_opcount++;
            }
            $result = @ifx_query($query, $this->connection);
        }
        if (!$result) {
            return $this->ifxRaiseError();
        }
        $this->affected = @ifx_affected_rows($result);
        // Determine which queries should return data, and which
        // should return an error code only.
        if (preg_match('/(SELECT)/i', $query)) {
            return $result;
        }
        // XXX Testme: free results inside a transaction
        // may cause to stop it and commit the work?
 
        // Result has to be freed even with a insert or update
        @ifx_free_result($result);
 
        return DB_OK;
    }
 
    // }}}
    // {{{ nextResult()
 
    /**
     * Move the internal ifx result pointer to the next available result
     *
     * @param a valid fbsql result resource
     *
     * @access public
     *
     * @return true if a result is available otherwise return false
     */
    function nextResult($result)
    {
        return false;
    }
 
    // }}}
    // {{{ affectedRows()
 
    /**
     * Determines the number of rows affected by a data maniuplation query
     *
     * 0 is returned for queries that don't manipulate data.
     *
     * @return int  the number of rows.  A DB_Error object on failure.
     */
    function affectedRows()
    {
        if (DB::isManip($this->last_query)) {
            return $this->affected;
        } else {
            return 0;
        }
    }
 
    // }}}
    // {{{ fetchInto()
 
    /**
     * Places a row from the result set into the given array
     *
     * Formating of the array and the data therein are configurable.
     * See DB_result::fetchInto() for more information.
     *
     * This method is not meant to be called directly.  Use
     * DB_result::fetchInto() instead.  It can't be declared "protected"
     * because DB_result is a separate object.
     *
     * @param resource $result    the query result resource
     * @param array    $arr       the referenced array to put the data in
     * @param int      $fetchmode how the resulting array should be indexed
     * @param int      $rownum    the row number to fetch (0 = first row)
     *
     * @return mixed  DB_OK on success, NULL when the end of a result set is
     *                 reached or on failure
     *
     * @see DB_result::fetchInto()
     */
    function fetchInto($result, &$arr, $fetchmode, $rownum = null)
    {
        if (($rownum !== null) && ($rownum < 0)) {
            return null;
        }
        if ($rownum === null) {
            /*
             * Even though fetch_row() should return the next row  if
             * $rownum is null, it doesn't in all cases.  Bug 598.
             */
            $rownum = 'NEXT';
        } else {
            // Index starts at row 1, unlike most DBMS's starting at 0.
            $rownum++;
        }
        if (!$arr = @ifx_fetch_row($result, $rownum)) {
            return null;
        }
        if ($fetchmode !== DB_FETCHMODE_ASSOC) {
            $i=0;
            $order = array();
            foreach ($arr as $val) {
                $order[$i++] = $val;
            }
            $arr = $order;
        } elseif ($fetchmode == DB_FETCHMODE_ASSOC &&
                  $this->options['portability'] & DB_PORTABILITY_LOWERCASE)
        {
            $arr = array_change_key_case($arr, CASE_LOWER);
        }
        if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
            $this->_rtrimArrayValues($arr);
        }
        if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
            $this->_convertNullArrayValuesToEmpty($arr);
        }
        return DB_OK;
    }
 
    // }}}
    // {{{ numCols()
 
    /**
     * Gets the number of columns in a result set
     *
     * This method is not meant to be called directly.  Use
     * DB_result::numCols() instead.  It can't be declared "protected"
     * because DB_result is a separate object.
     *
     * @param resource $result  PHP's query result resource
     *
     * @return int  the number of columns.  A DB_Error object on failure.
     *
     * @see DB_result::numCols()
     */
    function numCols($result)
    {
        if (!$cols = @ifx_num_fields($result)) {
            return $this->ifxRaiseError();
        }
        return $cols;
    }
 
    // }}}
    // {{{ freeResult()
 
    /**
     * Deletes the result set and frees the memory occupied by the result set
     *
     * This method is not meant to be called directly.  Use
     * DB_result::free() instead.  It can't be declared "protected"
     * because DB_result is a separate object.
     *
     * @param resource $result  PHP's query result resource
     *
     * @return bool  TRUE on success, FALSE if $result is invalid
     *
     * @see DB_result::free()
     */
    function freeResult($result)
    {
        return @ifx_free_result($result);
    }
 
    // }}}
    // {{{ autoCommit()
 
    /**
     * Enables or disables automatic commits
     *
     * @param bool $onoff  true turns it on, false turns it off
     *
     * @return int  DB_OK on success.  A DB_Error object if the driver
     *               doesn't support auto-committing transactions.
     */
    function autoCommit($onoff = true)
    {
        // XXX if $this->transaction_opcount > 0, we should probably
        // issue a warning here.
        $this->autocommit = $onoff ? true : false;
        return DB_OK;
    }
 
    // }}}
    // {{{ commit()
 
    /**
     * Commits the current transaction
     *
     * @return int  DB_OK on success.  A DB_Error object on failure.
     */
    function commit()
    {
        if ($this->transaction_opcount > 0) {
            $result = @ifx_query('COMMIT WORK', $this->connection);
            $this->transaction_opcount = 0;
            if (!$result) {
                return $this->ifxRaiseError();
            }
        }
        return DB_OK;
    }
 
    // }}}
    // {{{ rollback()
 
    /**
     * Reverts the current transaction
     *
     * @return int  DB_OK on success.  A DB_Error object on failure.
     */
    function rollback()
    {
        if ($this->transaction_opcount > 0) {
            $result = @ifx_query('ROLLBACK WORK', $this->connection);
            $this->transaction_opcount = 0;
            if (!$result) {
                return $this->ifxRaiseError();
            }
        }
        return DB_OK;
    }
 
    // }}}
    // {{{ ifxRaiseError()
 
    /**
     * Produces a DB_Error object regarding the current problem
     *
     * @param int $errno  if the error is being manually raised pass a
     *                     DB_ERROR* constant here.  If this isn't passed
     *                     the error information gathered from the DBMS.
     *
     * @return object  the DB_Error object
     *
     * @see DB_common::raiseError(),
     *      DB_ifx::errorNative(), DB_ifx::errorCode()
     */
    function ifxRaiseError($errno = null)
    {
        if ($errno === null) {
            $errno = $this->errorCode(ifx_error());
        }
        return $this->raiseError($errno, null, null, null,
                                 $this->errorNative());
    }
 
    // }}}
    // {{{ errorNative()
 
    /**
     * Gets the DBMS' native error code and message produced by the last query
     *
     * @return string  the DBMS' error code and message
     */
    function errorNative()
    {
        return @ifx_error() . ' ' . @ifx_errormsg();
    }
 
    // }}}
    // {{{ errorCode()
 
    /**
     * Maps native error codes to DB's portable ones.
     *
     * Requires that the DB implementation's constructor fills
     * in the <var>$errorcode_map</var> property.
     *
     * @param  string  $nativecode  error code returned by the database
     * @return int a portable DB error code, or DB_ERROR if this DB
     * implementation has no mapping for the given error code.
     */
    function errorCode($nativecode)
    {
        if (ereg('SQLCODE=(.*)]', $nativecode, $match)) {
            $code = $match[1];
            if (isset($this->errorcode_map[$code])) {
                return $this->errorcode_map[$code];
            }
        }
        return DB_ERROR;
    }
 
    // }}}
    // {{{ tableInfo()
 
    /**
     * Returns information about a table or a result set
     *
     * NOTE: only supports 'table' if <var>$result</var> is a table name.
     *
     * If analyzing a query result and the result has duplicate field names,
     * an error will be raised saying
     * <samp>can't distinguish duplicate field names</samp>.
     *
     * @param object|string  $result  DB_result object from a query or a
     *                                 string containing the name of a table.
     *                                 While this also accepts a query result
     *                                 resource identifier, this behavior is
     *                                 deprecated.
     * @param int            $mode    a valid tableInfo mode
     *
     * @return array  an associative array with the information requested.
     *                 A DB_Error object on failure.
     *
     * @see DB_common::tableInfo()
     * @since Method available since Release 1.6.0
     */
    function tableInfo($result, $mode = null)
    {
        if (is_string($result)) {
            /*
             * Probably received a table name.
             * Create a result resource identifier.
             */
            $id = @ifx_query("SELECT * FROM $result WHERE 1=0",
                             $this->connection);
            $got_string = true;
        } elseif (isset($result->result)) {
            /*
             * Probably received a result object.
             * Extract the result resource identifier.
             */
            $id = $result->result;
            $got_string = false;
        } else {
            /*
             * Probably received a result resource identifier.
             * Copy it.
             */
            $id = $result;
            $got_string = false;
        }
 
        if (!is_resource($id)) {
            return $this->ifxRaiseError(DB_ERROR_NEED_MORE_DATA);
        }
 
        $flds = @ifx_fieldproperties($id);
        $count = @ifx_num_fields($id);
 
        if (count($flds) != $count) {
            return $this->raiseError("can't distinguish duplicate field names");
        }
 
        if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
            $case_func = 'strtolower';
        } else {
            $case_func = 'strval';
        }
 
        $i   = 0;
        $res = array();
 
        if ($mode) {
            $res['num_fields'] = $count;
        }
 
        foreach ($flds as $key => $value) {
            $props = explode(';', $value);
            $res[$i] = array(
                'table' => $got_string ? $case_func($result) : '',
                'name'  => $case_func($key),
                'type'  => $props[0],
                'len'   => $props[1],
                'flags' => $props[4] == 'N' ? 'not_null' : '',
            );
            if ($mode & DB_TABLEINFO_ORDER) {
                $res['order'][$res[$i]['name']] = $i;
            }
            if ($mode & DB_TABLEINFO_ORDERTABLE) {
                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
            }
            $i++;
        }
 
        // free the result only if we were called on a table
        if ($got_string) {
            @ifx_free_result($id);
        }
        return $res;
    }
 
    // }}}
    // {{{ getSpecialQuery()
 
    /**
     * Obtains the query string needed for listing a given type of objects
     *
     * @param string $type  the kind of objects you want to retrieve
     *
     * @return string  the SQL query string or null if the driver doesn't
     *                  support the object type requested
     *
     * @access protected
     * @see DB_common::getListOf()
     */
    function getSpecialQuery($type)
    {
        switch ($type) {
            case 'tables':
                return 'SELECT tabname FROM systables WHERE tabid >= 100';
            default:
                return null;
        }
    }
 
    // }}}
 
}
 
/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * End:
 */
 
?>

Rev 320	Rev 443
1	`<?php`	1	`<?php`
2		2
3	`/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */`	3	`/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */`
4		4
5	`/**`	5	`/**`
6	`* The PEAR DB driver for PHP's ifx extension`	6	`* The PEAR DB driver for PHP's ifx extension`
7	`* for interacting with Informix databases`	7	`* for interacting with Informix databases`
8	`*`	8	`*`
9	`* PHP versions 4 and 5`	9	`* PHP versions 4 and 5`
10	`*`	10	`*`
11	`* LICENSE: This source file is subject to version 3.0 of the PHP license`	11	`* LICENSE: This source file is subject to version 3.0 of the PHP license`
12	`* that is available through the world-wide-web at the following URI:`	12	`* that is available through the world-wide-web at the following URI:`
13	`* http://www.php.net/license/3_0.txt. If you did not receive a copy of`	13	`* http://www.php.net/license/3_0.txt. If you did not receive a copy of`
14	`* the PHP License and are unable to obtain it through the web, please`	14	`* the PHP License and are unable to obtain it through the web, please`
15	`* send a note to license@php.net so we can mail you a copy immediately.`	15	`* send a note to license@php.net so we can mail you a copy immediately.`
16	`*`	16	`*`
17	`* @category Database`	17	`* @category Database`
18	`* @package DB`	18	`* @package DB`
19	`* @author Tomas V.V.Cox <cox@idecnet.com>`	19	`* @author Tomas V.V.Cox <cox@idecnet.com>`
20	`* @author Daniel Convissor <danielc@php.net>`	20	`* @author Daniel Convissor <danielc@php.net>`
21	`* @copyright 1997-2005 The PHP Group`	21	`* @copyright 1997-2005 The PHP Group`
22	`* @license http://www.php.net/license/3_0.txt PHP License 3.0`	22	`* @license http://www.php.net/license/3_0.txt PHP License 3.0`
23	`* @version CVS: $Id: ifx.php,v 1.1 2005-03-30 08:50:33 jpm Exp $`	23	`* @version CVS: $Id: ifx.php,v 1.2 2005-09-20 17:01:22 ddelon Exp $`
24	`* @link http://pear.php.net/package/DB`	24	`* @link http://pear.php.net/package/DB`
25	`*/`	25	`*/`
26		26
27	`/**`	27	`/**`
28	`* Obtain the DB_common class so it can be extended from`	28	`* Obtain the DB_common class so it can be extended from`
29	`*/`	29	`*/`
30	`require_once 'DB/common.php';`	30	`require_once 'DB/common.php';`
31		31
32	`/**`	32	`/**`
33	`* The methods PEAR DB uses to interact with PHP's ifx extension`	33	`* The methods PEAR DB uses to interact with PHP's ifx extension`
34	`* for interacting with Informix databases`	34	`* for interacting with Informix databases`
35	`*`	35	`*`
36	`* These methods overload the ones declared in DB_common.`	36	`* These methods overload the ones declared in DB_common.`
37	`*`	37	`*`
38	`* More info on Informix errors can be found at:`	38	`* More info on Informix errors can be found at:`
39	`* http://www.informix.com/answers/english/ierrors.htm`	39	`* http://www.informix.com/answers/english/ierrors.htm`
40	`*`	40	`*`
41	`* TODO:`	41	`* TODO:`
42	`* - set needed env Informix vars on connect`	42	`* - set needed env Informix vars on connect`
43	`* - implement native prepare/execute`	43	`* - implement native prepare/execute`
44	`*`	44	`*`
45	`* @category Database`	45	`* @category Database`
46	`* @package DB`	46	`* @package DB`
47	`* @author Tomas V.V.Cox <cox@idecnet.com>`	47	`* @author Tomas V.V.Cox <cox@idecnet.com>`
48	`* @author Daniel Convissor <danielc@php.net>`	48	`* @author Daniel Convissor <danielc@php.net>`
49	`* @copyright 1997-2005 The PHP Group`	49	`* @copyright 1997-2005 The PHP Group`
50	`* @license http://www.php.net/license/3_0.txt PHP License 3.0`	50	`* @license http://www.php.net/license/3_0.txt PHP License 3.0`
51	`* @version Release: 1.7.5`	51	`* @version Release: @package_version@`
52	`* @link http://pear.php.net/package/DB`	52	`* @link http://pear.php.net/package/DB`
53	`*/`	53	`*/`
54	`class DB_ifx extends DB_common`	54	`class DB_ifx extends DB_common`
55	`{`	55	`{`
56	`// {{{ properties`	56	`// {{{ properties`
57		57
58	`/**`	58	`/**`
59	`* The DB driver type (mysql, oci8, odbc, etc.)`	59	`* The DB driver type (mysql, oci8, odbc, etc.)`
60	`* @var string`	60	`* @var string`
61	`*/`	61	`*/`
62	`var $phptype = 'ifx';`	62	`var $phptype = 'ifx';`
63		63
64	`/**`	64	`/**`
65	`* The database syntax variant to be used (db2, access, etc.), if any`	65	`* The database syntax variant to be used (db2, access, etc.), if any`
66	`* @var string`	66	`* @var string`
67	`*/`	67	`*/`
68	`var $dbsyntax = 'ifx';`	68	`var $dbsyntax = 'ifx';`
69		69
70	`/**`	70	`/**`
71	`* The capabilities of this DB implementation`	71	`* The capabilities of this DB implementation`
72	`*`	72	`*`
73	`* The 'new_link' element contains the PHP version that first provided`	73	`* The 'new_link' element contains the PHP version that first provided`
74	`* new_link support for this DBMS. Contains false if it's unsupported.`	74	`* new_link support for this DBMS. Contains false if it's unsupported.`
75	`*`	75	`*`
76	`* Meaning of the 'limit' element:`	76	`* Meaning of the 'limit' element:`
77	`* + 'emulate' = emulate with fetch row by number`	77	`* + 'emulate' = emulate with fetch row by number`
78	`* + 'alter' = alter the query`	78	`* + 'alter' = alter the query`
79	`* + false = skip rows`	79	`* + false = skip rows`
80	`*`	80	`*`
81	`* @var array`	81	`* @var array`
82	`*/`	82	`*/`
83	`var $features = array(`	83	`var $features = array(`
84	`'limit' => 'emulate',`	84	`'limit' => 'emulate',`
85	`'new_link' => false,`	85	`'new_link' => false,`
86	`'numrows' => 'emulate',`	86	`'numrows' => 'emulate',`
87	`'pconnect' => true,`	87	`'pconnect' => true,`
88	`'prepare' => false,`	88	`'prepare' => false,`
89	`'ssl' => false,`	89	`'ssl' => false,`
90	`'transactions' => true,`	90	`'transactions' => true,`
91	`);`	91	`);`
92		92
93	`/**`	93	`/**`
94	`* A mapping of native error codes to DB error codes`	94	`* A mapping of native error codes to DB error codes`
95	`* @var array`	95	`* @var array`
96	`*/`	96	`*/`
97	`var $errorcode_map = array(`	97	`var $errorcode_map = array(`
98	`'-201' => DB_ERROR_SYNTAX,`	98	`'-201' => DB_ERROR_SYNTAX,`
99	`'-206' => DB_ERROR_NOSUCHTABLE,`	99	`'-206' => DB_ERROR_NOSUCHTABLE,`
100	`'-217' => DB_ERROR_NOSUCHFIELD,`	100	`'-217' => DB_ERROR_NOSUCHFIELD,`
101	`'-236' => DB_ERROR_VALUE_COUNT_ON_ROW,`	101	`'-236' => DB_ERROR_VALUE_COUNT_ON_ROW,`
102	`'-239' => DB_ERROR_CONSTRAINT,`	102	`'-239' => DB_ERROR_CONSTRAINT,`
103	`'-253' => DB_ERROR_SYNTAX,`	103	`'-253' => DB_ERROR_SYNTAX,`
104	`'-292' => DB_ERROR_CONSTRAINT_NOT_NULL,`	104	`'-292' => DB_ERROR_CONSTRAINT_NOT_NULL,`
105	`'-310' => DB_ERROR_ALREADY_EXISTS,`	105	`'-310' => DB_ERROR_ALREADY_EXISTS,`
106	`'-316' => DB_ERROR_ALREADY_EXISTS,`	106	`'-316' => DB_ERROR_ALREADY_EXISTS,`
107	`'-319' => DB_ERROR_NOT_FOUND,`	107	`'-319' => DB_ERROR_NOT_FOUND,`
108	`'-329' => DB_ERROR_NODBSELECTED,`	108	`'-329' => DB_ERROR_NODBSELECTED,`
109	`'-346' => DB_ERROR_CONSTRAINT,`	109	`'-346' => DB_ERROR_CONSTRAINT,`
110	`'-386' => DB_ERROR_CONSTRAINT_NOT_NULL,`	110	`'-386' => DB_ERROR_CONSTRAINT_NOT_NULL,`
111	`'-391' => DB_ERROR_CONSTRAINT_NOT_NULL,`	111	`'-391' => DB_ERROR_CONSTRAINT_NOT_NULL,`
112	`'-554' => DB_ERROR_SYNTAX,`	112	`'-554' => DB_ERROR_SYNTAX,`
113	`'-691' => DB_ERROR_CONSTRAINT,`	113	`'-691' => DB_ERROR_CONSTRAINT,`
114	`'-692' => DB_ERROR_CONSTRAINT,`	114	`'-692' => DB_ERROR_CONSTRAINT,`
115	`'-703' => DB_ERROR_CONSTRAINT_NOT_NULL,`	115	`'-703' => DB_ERROR_CONSTRAINT_NOT_NULL,`
116	`'-1204' => DB_ERROR_INVALID_DATE,`	116	`'-1204' => DB_ERROR_INVALID_DATE,`
117	`'-1205' => DB_ERROR_INVALID_DATE,`	117	`'-1205' => DB_ERROR_INVALID_DATE,`
118	`'-1206' => DB_ERROR_INVALID_DATE,`	118	`'-1206' => DB_ERROR_INVALID_DATE,`
119	`'-1209' => DB_ERROR_INVALID_DATE,`	119	`'-1209' => DB_ERROR_INVALID_DATE,`
120	`'-1210' => DB_ERROR_INVALID_DATE,`	120	`'-1210' => DB_ERROR_INVALID_DATE,`
121	`'-1212' => DB_ERROR_INVALID_DATE,`	121	`'-1212' => DB_ERROR_INVALID_DATE,`
122	`'-1213' => DB_ERROR_INVALID_NUMBER,`	122	`'-1213' => DB_ERROR_INVALID_NUMBER,`
123	`);`	123	`);`
124		124
125	`/**`	125	`/**`
126	`* The raw database connection created by PHP`	126	`* The raw database connection created by PHP`
127	`* @var resource`	127	`* @var resource`
128	`*/`	128	`*/`
129	`var $connection;`	129	`var $connection;`
130		130
131	`/**`	131	`/**`
132	`* The DSN information for connecting to a database`	132	`* The DSN information for connecting to a database`
133	`* @var array`	133	`* @var array`
134	`*/`	134	`*/`
135	`var $dsn = array();`	135	`var $dsn = array();`
136		136
137		137
138	`/**`	138	`/**`
139	`* Should data manipulation queries be committed automatically?`	139	`* Should data manipulation queries be committed automatically?`
140	`* @var bool`	140	`* @var bool`
141	`* @access private`	141	`* @access private`
142	`*/`	142	`*/`
143	`var $autocommit = true;`	143	`var $autocommit = true;`
144		144
145	`/**`	145	`/**`
146	`* The quantity of transactions begun`	146	`* The quantity of transactions begun`
147	`*`	147	`*`
148	`* {@internal While this is private, it can't actually be designated`	148	`* {@internal While this is private, it can't actually be designated`
149	`* private in PHP 5 because it is directly accessed in the test suite.}}`	149	`* private in PHP 5 because it is directly accessed in the test suite.}}`
150	`*`	150	`*`
151	`* @var integer`	151	`* @var integer`
152	`* @access private`	152	`* @access private`
153	`*/`	153	`*/`
154	`var $transaction_opcount = 0;`	154	`var $transaction_opcount = 0;`
155		155
156	`/**`	156	`/**`
157	`* The number of rows affected by a data manipulation query`	157	`* The number of rows affected by a data manipulation query`
158	`* @var integer`	158	`* @var integer`
159	`* @access private`	159	`* @access private`
160	`*/`	160	`*/`
161	`var $affected = 0;`	161	`var $affected = 0;`
162		162
163		163
164	`// }}}`	164	`// }}}`
165	`// {{{ constructor`	165	`// {{{ constructor`
166		166
167	`/**`	167	`/**`
168	`* This constructor calls <kbd>$this->DB_common()</kbd>`	168	`* This constructor calls <kbd>$this->DB_common()</kbd>`
169	`*`	169	`*`
170	`* @return void`	170	`* @return void`
171	`*/`	171	`*/`
172	`function DB_ifx()`	172	`function DB_ifx()`
173	`{`	173	`{`
174	`$this->DB_common();`	174	`$this->DB_common();`
175	`}`	175	`}`
176		176
177	`// }}}`	177	`// }}}`
178	`// {{{ connect()`	178	`// {{{ connect()`
179		179
180	`/**`	180	`/**`
181	`* Connect to the database server, log in and open the database`	181	`* Connect to the database server, log in and open the database`
182	`*`	182	`*`
183	`* Don't call this method directly. Use DB::connect() instead.`	183	`* Don't call this method directly. Use DB::connect() instead.`
184	`*`	184	`*`
185	`* @param array $dsn the data source name`	185	`* @param array $dsn the data source name`
186	`* @param bool $persistent should the connection be persistent?`	186	`* @param bool $persistent should the connection be persistent?`
187	`*`	187	`*`
188	`* @return int DB_OK on success. A DB_Error object on failure.`	188	`* @return int DB_OK on success. A DB_Error object on failure.`
189	`*/`	189	`*/`
190	`function connect($dsn, $persistent = false)`	190	`function connect($dsn, $persistent = false)`
191	`{`	191	`{`
192	`if (!PEAR::loadExtension('informix') &&`	192	`if (!PEAR::loadExtension('informix') &&`
193	`!PEAR::loadExtension('Informix'))`	193	`!PEAR::loadExtension('Informix'))`
194	`{`	194	`{`
195	`return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);`	195	`return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);`
196	`}`	196	`}`
197		197
198	`$this->dsn = $dsn;`	198	`$this->dsn = $dsn;`
199	`if ($dsn['dbsyntax']) {`	199	`if ($dsn['dbsyntax']) {`
200	`$this->dbsyntax = $dsn['dbsyntax'];`	200	`$this->dbsyntax = $dsn['dbsyntax'];`
201	`}`	201	`}`
202		202
203	`$dbhost = $dsn['hostspec'] ? '@' . $dsn['hostspec'] : '';`	203	`$dbhost = $dsn['hostspec'] ? '@' . $dsn['hostspec'] : '';`
204	`$dbname = $dsn['database'] ? $dsn['database'] . $dbhost : '';`	204	`$dbname = $dsn['database'] ? $dsn['database'] . $dbhost : '';`
205	`$user = $dsn['username'] ? $dsn['username'] : '';`	205	`$user = $dsn['username'] ? $dsn['username'] : '';`
206	`$pw = $dsn['password'] ? $dsn['password'] : '';`	206	`$pw = $dsn['password'] ? $dsn['password'] : '';`
207		207
208	`$connect_function = $persistent ? 'ifx_pconnect' : 'ifx_connect';`	208	`$connect_function = $persistent ? 'ifx_pconnect' : 'ifx_connect';`
209		209
210	`$this->connection = @$connect_function($dbname, $user, $pw);`	210	`$this->connection = @$connect_function($dbname, $user, $pw);`
211	`if (!is_resource($this->connection)) {`	211	`if (!is_resource($this->connection)) {`
212	`return $this->ifxRaiseError(DB_ERROR_CONNECT_FAILED);`	212	`return $this->ifxRaiseError(DB_ERROR_CONNECT_FAILED);`
213	`}`	213	`}`
214	`return DB_OK;`	214	`return DB_OK;`
215	`}`	215	`}`
216		216
217	`// }}}`	217	`// }}}`
218	`// {{{ disconnect()`	218	`// {{{ disconnect()`
219		219
220	`/**`	220	`/**`
221	`* Disconnects from the database server`	221	`* Disconnects from the database server`
222	`*`	222	`*`
223	`* @return bool TRUE on success, FALSE on failure`	223	`* @return bool TRUE on success, FALSE on failure`
224	`*/`	224	`*/`
225	`function disconnect()`	225	`function disconnect()`
226	`{`	226	`{`
227	`$ret = @ifx_close($this->connection);`	227	`$ret = @ifx_close($this->connection);`
228	`$this->connection = null;`	228	`$this->connection = null;`
229	`return $ret;`	229	`return $ret;`
230	`}`	230	`}`
231		231
232	`// }}}`	232	`// }}}`
233	`// {{{ simpleQuery()`	233	`// {{{ simpleQuery()`
234		234
235	`/**`	235	`/**`
236	`* Sends a query to the database server`	236	`* Sends a query to the database server`
237	`*`	237	`*`
238	`* @param string the SQL query string`	238	`* @param string the SQL query string`
239	`*`	239	`*`
240	`* @return mixed + a PHP result resrouce for successful SELECT queries`	240	`* @return mixed + a PHP result resrouce for successful SELECT queries`
241	`* + the DB_OK constant for other successful queries`	241	`* + the DB_OK constant for other successful queries`
242	`* + a DB_Error object on failure`	242	`* + a DB_Error object on failure`
243	`*/`	243	`*/`
244	`function simpleQuery($query)`	244	`function simpleQuery($query)`
245	`{`	245	`{`
246	`$ismanip = DB::isManip($query);`	246	`$ismanip = DB::isManip($query);`
247	`$this->last_query = $query;`	247	`$this->last_query = $query;`
248	`$this->affected = null;`	248	`$this->affected = null;`
249	`if (preg_match('/(SELECT)/i', $query)) { //TESTME: Use !DB::isManip()?`	249	`if (preg_match('/(SELECT)/i', $query)) { //TESTME: Use !DB::isManip()?`
250	`// the scroll is needed for fetching absolute row numbers`	250	`// the scroll is needed for fetching absolute row numbers`
251	`// in a select query result`	251	`// in a select query result`
252	`$result = @ifx_query($query, $this->connection, IFX_SCROLL);`	252	`$result = @ifx_query($query, $this->connection, IFX_SCROLL);`
253	`} else {`	253	`} else {`
254	`if (!$this->autocommit && $ismanip) {`	254	`if (!$this->autocommit && $ismanip) {`
255	`if ($this->transaction_opcount == 0) {`	255	`if ($this->transaction_opcount == 0) {`
256	`$result = @ifx_query('BEGIN WORK', $this->connection);`	256	`$result = @ifx_query('BEGIN WORK', $this->connection);`
257	`if (!$result) {`	257	`if (!$result) {`
258	`return $this->ifxRaiseError();`	258	`return $this->ifxRaiseError();`
259	`}`	259	`}`
260	`}`	260	`}`
261	`$this->transaction_opcount++;`	261	`$this->transaction_opcount++;`
262	`}`	262	`}`
263	`$result = @ifx_query($query, $this->connection);`	263	`$result = @ifx_query($query, $this->connection);`
264	`}`	264	`}`
265	`if (!$result) {`	265	`if (!$result) {`
266	`return $this->ifxRaiseError();`	266	`return $this->ifxRaiseError();`
267	`}`	267	`}`
268	`$this->affected = @ifx_affected_rows($result);`	268	`$this->affected = @ifx_affected_rows($result);`
269	`// Determine which queries should return data, and which`	269	`// Determine which queries should return data, and which`
270	`// should return an error code only.`	270	`// should return an error code only.`
271	`if (preg_match('/(SELECT)/i', $query)) {`	271	`if (preg_match('/(SELECT)/i', $query)) {`
272	`return $result;`	272	`return $result;`
273	`}`	273	`}`
274	`// XXX Testme: free results inside a transaction`	274	`// XXX Testme: free results inside a transaction`
275	`// may cause to stop it and commit the work?`	275	`// may cause to stop it and commit the work?`
276		276
277	`// Result has to be freed even with a insert or update`	277	`// Result has to be freed even with a insert or update`
278	`@ifx_free_result($result);`	278	`@ifx_free_result($result);`
279		279
280	`return DB_OK;`	280	`return DB_OK;`
281	`}`	281	`}`
282		282
283	`// }}}`	283	`// }}}`
284	`// {{{ nextResult()`	284	`// {{{ nextResult()`
285		285
286	`/**`	286	`/**`
287	`* Move the internal ifx result pointer to the next available result`	287	`* Move the internal ifx result pointer to the next available result`
288	`*`	288	`*`
289	`* @param a valid fbsql result resource`	289	`* @param a valid fbsql result resource`
290	`*`	290	`*`
291	`* @access public`	291	`* @access public`
292	`*`	292	`*`
293	`* @return true if a result is available otherwise return false`	293	`* @return true if a result is available otherwise return false`
294	`*/`	294	`*/`
295	`function nextResult($result)`	295	`function nextResult($result)`
296	`{`	296	`{`
297	`return false;`	297	`return false;`
298	`}`	298	`}`
299		299
300	`// }}}`	300	`// }}}`
301	`// {{{ affectedRows()`	301	`// {{{ affectedRows()`
302		302
303	`/**`	303	`/**`
304	`* Determines the number of rows affected by a data maniuplation query`	304	`* Determines the number of rows affected by a data maniuplation query`
305	`*`	305	`*`
306	`* 0 is returned for queries that don't manipulate data.`	306	`* 0 is returned for queries that don't manipulate data.`
307	`*`	307	`*`
308	`* @return int the number of rows. A DB_Error object on failure.`	308	`* @return int the number of rows. A DB_Error object on failure.`
309	`*/`	309	`*/`
310	`function affectedRows()`	310	`function affectedRows()`
311	`{`	311	`{`
312	`if (DB::isManip($this->last_query)) {`	312	`if (DB::isManip($this->last_query)) {`
313	`return $this->affected;`	313	`return $this->affected;`
314	`} else {`	314	`} else {`
315	`return 0;`	315	`return 0;`
316	`}`	316	`}`
317	`}`	317	`}`
318		318
319	`// }}}`	319	`// }}}`
320	`// {{{ fetchInto()`	320	`// {{{ fetchInto()`
321		321
322	`/**`	322	`/**`
323	`* Places a row from the result set into the given array`	323	`* Places a row from the result set into the given array`
324	`*`	324	`*`
325	`* Formating of the array and the data therein are configurable.`	325	`* Formating of the array and the data therein are configurable.`
326	`* See DB_result::fetchInto() for more information.`	326	`* See DB_result::fetchInto() for more information.`
327	`*`	327	`*`
328	`* This method is not meant to be called directly. Use`	328	`* This method is not meant to be called directly. Use`
329	`* DB_result::fetchInto() instead. It can't be declared "protected"`	329	`* DB_result::fetchInto() instead. It can't be declared "protected"`
330	`* because DB_result is a separate object.`	330	`* because DB_result is a separate object.`
331	`*`	331	`*`
332	`* @param resource $result the query result resource`	332	`* @param resource $result the query result resource`
333	`* @param array $arr the referenced array to put the data in`	333	`* @param array $arr the referenced array to put the data in`
334	`* @param int $fetchmode how the resulting array should be indexed`	334	`* @param int $fetchmode how the resulting array should be indexed`
335	`* @param int $rownum the row number to fetch (0 = first row)`	335	`* @param int $rownum the row number to fetch (0 = first row)`
336	`*`	336	`*`
337	`* @return mixed DB_OK on success, NULL when the end of a result set is`	337	`* @return mixed DB_OK on success, NULL when the end of a result set is`
338	`* reached or on failure`	338	`* reached or on failure`
339	`*`	339	`*`
340	`* @see DB_result::fetchInto()`	340	`* @see DB_result::fetchInto()`
341	`*/`	341	`*/`
342	`function fetchInto($result, &$arr, $fetchmode, $rownum = null)`	342	`function fetchInto($result, &$arr, $fetchmode, $rownum = null)`
343	`{`	343	`{`
344	`if (($rownum !== null) && ($rownum < 0)) {`	344	`if (($rownum !== null) && ($rownum < 0)) {`
345	`return null;`	345	`return null;`
346	`}`	346	`}`
347	`if ($rownum === null) {`	347	`if ($rownum === null) {`
348	`/*`	348	`/*`
349	`* Even though fetch_row() should return the next row if`	349	`* Even though fetch_row() should return the next row if`
350	`* $rownum is null, it doesn't in all cases. Bug 598.`	350	`* $rownum is null, it doesn't in all cases. Bug 598.`
351	`*/`	351	`*/`
352	`$rownum = 'NEXT';`	352	`$rownum = 'NEXT';`
353	`} else {`	353	`} else {`
354	`// Index starts at row 1, unlike most DBMS's starting at 0.`	354	`// Index starts at row 1, unlike most DBMS's starting at 0.`
355	`$rownum++;`	355	`$rownum++;`
356	`}`	356	`}`
357	`if (!$arr = @ifx_fetch_row($result, $rownum)) {`	357	`if (!$arr = @ifx_fetch_row($result, $rownum)) {`
358	`return null;`	358	`return null;`
359	`}`	359	`}`
360	`if ($fetchmode !== DB_FETCHMODE_ASSOC) {`	360	`if ($fetchmode !== DB_FETCHMODE_ASSOC) {`
361	`$i=0;`	361	`$i=0;`
362	`$order = array();`	362	`$order = array();`
363	`foreach ($arr as $val) {`	363	`foreach ($arr as $val) {`
364	`$order[$i++] = $val;`	364	`$order[$i++] = $val;`
365	`}`	365	`}`
366	`$arr = $order;`	366	`$arr = $order;`
367	`} elseif ($fetchmode == DB_FETCHMODE_ASSOC &&`	367	`} elseif ($fetchmode == DB_FETCHMODE_ASSOC &&`
368	`$this->options['portability'] & DB_PORTABILITY_LOWERCASE)`	368	`$this->options['portability'] & DB_PORTABILITY_LOWERCASE)`
369	`{`	369	`{`
370	`$arr = array_change_key_case($arr, CASE_LOWER);`	370	`$arr = array_change_key_case($arr, CASE_LOWER);`
371	`}`	371	`}`
372	`if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {`	372	`if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {`
373	`$this->_rtrimArrayValues($arr);`	373	`$this->_rtrimArrayValues($arr);`
374	`}`	374	`}`
375	`if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {`	375	`if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {`
376	`$this->_convertNullArrayValuesToEmpty($arr);`	376	`$this->_convertNullArrayValuesToEmpty($arr);`
377	`}`	377	`}`
378	`return DB_OK;`	378	`return DB_OK;`
379	`}`	379	`}`
380		380
381	`// }}}`	381	`// }}}`
382	`// {{{ numCols()`	382	`// {{{ numCols()`
383		383
384	`/**`	384	`/**`
385	`* Gets the number of columns in a result set`	385	`* Gets the number of columns in a result set`
386	`*`	386	`*`
387	`* This method is not meant to be called directly. Use`	387	`* This method is not meant to be called directly. Use`
388	`* DB_result::numCols() instead. It can't be declared "protected"`	388	`* DB_result::numCols() instead. It can't be declared "protected"`
389	`* because DB_result is a separate object.`	389	`* because DB_result is a separate object.`
390	`*`	390	`*`
391	`* @param resource $result PHP's query result resource`	391	`* @param resource $result PHP's query result resource`
392	`*`	392	`*`
393	`* @return int the number of columns. A DB_Error object on failure.`	393	`* @return int the number of columns. A DB_Error object on failure.`
394	`*`	394	`*`
395	`* @see DB_result::numCols()`	395	`* @see DB_result::numCols()`
396	`*/`	396	`*/`
397	`function numCols($result)`	397	`function numCols($result)`
398	`{`	398	`{`
399	`if (!$cols = @ifx_num_fields($result)) {`	399	`if (!$cols = @ifx_num_fields($result)) {`
400	`return $this->ifxRaiseError();`	400	`return $this->ifxRaiseError();`
401	`}`	401	`}`
402	`return $cols;`	402	`return $cols;`
403	`}`	403	`}`
404		404
405	`// }}}`	405	`// }}}`
406	`// {{{ freeResult()`	406	`// {{{ freeResult()`
407		407
408	`/**`	408	`/**`
409	`* Deletes the result set and frees the memory occupied by the result set`	409	`* Deletes the result set and frees the memory occupied by the result set`
410	`*`	410	`*`
411	`* This method is not meant to be called directly. Use`	411	`* This method is not meant to be called directly. Use`
412	`* DB_result::free() instead. It can't be declared "protected"`	412	`* DB_result::free() instead. It can't be declared "protected"`
413	`* because DB_result is a separate object.`	413	`* because DB_result is a separate object.`
414	`*`	414	`*`
415	`* @param resource $result PHP's query result resource`	415	`* @param resource $result PHP's query result resource`
416	`*`	416	`*`
417	`* @return bool TRUE on success, FALSE if $result is invalid`	417	`* @return bool TRUE on success, FALSE if $result is invalid`
418	`*`	418	`*`
419	`* @see DB_result::free()`	419	`* @see DB_result::free()`
420	`*/`	420	`*/`
421	`function freeResult($result)`	421	`function freeResult($result)`
422	`{`	422	`{`
423	`return @ifx_free_result($result);`	423	`return @ifx_free_result($result);`
424	`}`	424	`}`
425		425
426	`// }}}`	426	`// }}}`
427	`// {{{ autoCommit()`	427	`// {{{ autoCommit()`
428		428
429	`/**`	429	`/**`
430	`* Enables or disables automatic commits`	430	`* Enables or disables automatic commits`
431	`*`	431	`*`
432	`* @param bool $onoff true turns it on, false turns it off`	432	`* @param bool $onoff true turns it on, false turns it off`
433	`*`	433	`*`
434	`* @return int DB_OK on success. A DB_Error object if the driver`	434	`* @return int DB_OK on success. A DB_Error object if the driver`
435	`* doesn't support auto-committing transactions.`	435	`* doesn't support auto-committing transactions.`
436	`*/`	436	`*/`
437	`function autoCommit($onoff = true)`	437	`function autoCommit($onoff = true)`
438	`{`	438	`{`
439	`// XXX if $this->transaction_opcount > 0, we should probably`	439	`// XXX if $this->transaction_opcount > 0, we should probably`
440	`// issue a warning here.`	440	`// issue a warning here.`
441	`$this->autocommit = $onoff ? true : false;`	441	`$this->autocommit = $onoff ? true : false;`
442	`return DB_OK;`	442	`return DB_OK;`
443	`}`	443	`}`
444		444
445	`// }}}`	445	`// }}}`
446	`// {{{ commit()`	446	`// {{{ commit()`
447		447
448	`/**`	448	`/**`
449	`* Commits the current transaction`	449	`* Commits the current transaction`
450	`*`	450	`*`
451	`* @return int DB_OK on success. A DB_Error object on failure.`	451	`* @return int DB_OK on success. A DB_Error object on failure.`
452	`*/`	452	`*/`
453	`function commit()`	453	`function commit()`
454	`{`	454	`{`
455	`if ($this->transaction_opcount > 0) {`	455	`if ($this->transaction_opcount > 0) {`
456	`$result = @ifx_query('COMMIT WORK', $this->connection);`	456	`$result = @ifx_query('COMMIT WORK', $this->connection);`
457	`$this->transaction_opcount = 0;`	457	`$this->transaction_opcount = 0;`
458	`if (!$result) {`	458	`if (!$result) {`
459	`return $this->ifxRaiseError();`	459	`return $this->ifxRaiseError();`
460	`}`	460	`}`
461	`}`	461	`}`
462	`return DB_OK;`	462	`return DB_OK;`
463	`}`	463	`}`
464		464
465	`// }}}`	465	`// }}}`
466	`// {{{ rollback()`	466	`// {{{ rollback()`
467		467
468	`/**`	468	`/**`
469	`* Reverts the current transaction`	469	`* Reverts the current transaction`
470	`*`	470	`*`
471	`* @return int DB_OK on success. A DB_Error object on failure.`	471	`* @return int DB_OK on success. A DB_Error object on failure.`
472	`*/`	472	`*/`
473	`function rollback()`	473	`function rollback()`
474	`{`	474	`{`
475	`if ($this->transaction_opcount > 0) {`	475	`if ($this->transaction_opcount > 0) {`
476	`$result = @ifx_query('ROLLBACK WORK', $this->connection);`	476	`$result = @ifx_query('ROLLBACK WORK', $this->connection);`
477	`$this->transaction_opcount = 0;`	477	`$this->transaction_opcount = 0;`
478	`if (!$result) {`	478	`if (!$result) {`
479	`return $this->ifxRaiseError();`	479	`return $this->ifxRaiseError();`
480	`}`	480	`}`
481	`}`	481	`}`
482	`return DB_OK;`	482	`return DB_OK;`
483	`}`	483	`}`
484		484
485	`// }}}`	485	`// }}}`
486	`// {{{ ifxRaiseError()`	486	`// {{{ ifxRaiseError()`
487		487
488	`/**`	488	`/**`
489	`* Produces a DB_Error object regarding the current problem`	489	`* Produces a DB_Error object regarding the current problem`
490	`*`	490	`*`
491	`* @param int $errno if the error is being manually raised pass a`	491	`* @param int $errno if the error is being manually raised pass a`
492	`* DB_ERROR* constant here. If this isn't passed`	492	`* DB_ERROR* constant here. If this isn't passed`
493	`* the error information gathered from the DBMS.`	493	`* the error information gathered from the DBMS.`
494	`*`	494	`*`
495	`* @return object the DB_Error object`	495	`* @return object the DB_Error object`
496	`*`	496	`*`
497	`* @see DB_common::raiseError(),`	497	`* @see DB_common::raiseError(),`
498	`* DB_ifx::errorNative(), DB_ifx::errorCode()`	498	`* DB_ifx::errorNative(), DB_ifx::errorCode()`
499	`*/`	499	`*/`
500	`function ifxRaiseError($errno = null)`	500	`function ifxRaiseError($errno = null)`

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