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<?php/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: *//*** The PEAR DB driver for PHP's oci8 extension* for interacting with Oracle 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 James L. Pine <jlp@valinux.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: oci8.php,v 1.1 2005-03-30 08:50:33 jpm 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 oci8 extension* for interacting with Oracle databases** Definitely works with versions 8 and 9 of Oracle.** These methods overload the ones declared in DB_common.** Be aware... OCIError() only appears to return anything when given a* statement, so functions return the generic DB_ERROR instead of more* useful errors that have to do with feedback from the database.** @category Database* @package DB* @author James L. Pine <jlp@valinux.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: 1.7.5* @link http://pear.php.net/package/DB*/class DB_oci8 extends DB_common{// {{{ properties/*** The DB driver type (mysql, oci8, odbc, etc.)* @var string*/var $phptype = 'oci8';/*** The database syntax variant to be used (db2, access, etc.), if any* @var string*/var $dbsyntax = 'oci8';/*** 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' => 'alter','new_link' => '5.0.0','numrows' => 'subquery','pconnect' => true,'prepare' => true,'ssl' => false,'transactions' => true,);/*** A mapping of native error codes to DB error codes* @var array*/var $errorcode_map = array(1 => DB_ERROR_CONSTRAINT,900 => DB_ERROR_SYNTAX,904 => DB_ERROR_NOSUCHFIELD,913 => DB_ERROR_VALUE_COUNT_ON_ROW,921 => DB_ERROR_SYNTAX,923 => DB_ERROR_SYNTAX,942 => DB_ERROR_NOSUCHTABLE,955 => DB_ERROR_ALREADY_EXISTS,1400 => DB_ERROR_CONSTRAINT_NOT_NULL,1401 => DB_ERROR_INVALID,1407 => DB_ERROR_CONSTRAINT_NOT_NULL,1418 => DB_ERROR_NOT_FOUND,1476 => DB_ERROR_DIVZERO,1722 => DB_ERROR_INVALID_NUMBER,2289 => DB_ERROR_NOSUCHTABLE,2291 => DB_ERROR_CONSTRAINT,2292 => DB_ERROR_CONSTRAINT,2449 => DB_ERROR_CONSTRAINT,);/*** 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;/*** Stores the $data passed to execute() in the oci8 driver** Gets reset to array() when simpleQuery() is run.** Needed in case user wants to call numRows() after prepare/execute* was used.** @var array* @access private*/var $_data = array();/*** The result or statement handle from the most recently executed query* @var resource*/var $last_stmt;/*** Is the given prepared statement a data manipulation query?* @var array* @access private*/var $manip_query = array();// }}}// {{{ constructor/*** This constructor calls <kbd>$this->DB_common()</kbd>** @return void*/function DB_oci8(){$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.** If PHP is at version 5.0.0 or greater:* + Generally, oci_connect() or oci_pconnect() are used.* + But if the new_link DSN option is set to true, oci_new_connect()* is used.** When using PHP version 4.x, OCILogon() or OCIPLogon() are used.** PEAR DB's oci8 driver supports the following extra DSN options:* + charset The character set to be used on the connection.* Only used if PHP is at version 5.0.0 or greater* and the Oracle server is at 9.2 or greater.* Available since PEAR DB 1.7.0.* + new_link If set to true, causes subsequent calls to* connect() to return a new connection link* instead of the existing one. WARNING: this is* not portable to other DBMS's.* Available since PEAR DB 1.7.0.** @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('oci8')) {return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);}$this->dsn = $dsn;if ($dsn['dbsyntax']) {$this->dbsyntax = $dsn['dbsyntax'];}if (function_exists('oci_connect')) {if (isset($dsn['new_link'])&& ($dsn['new_link'] == 'true' || $dsn['new_link'] === true)){$connect_function = 'oci_new_connect';} else {$connect_function = $persistent ? 'oci_pconnect': 'oci_connect';}$char = empty($dsn['charset']) ? null : $dsn['charset'];$this->connection = @$connect_function($dsn['username'],$dsn['password'],$dsn['database'],$char);$error = OCIError();if (!empty($error) && $error['code'] == 12541) {// Couldn't find TNS listener. Try direct connection.$this->connection = @$connect_function($dsn['username'],$dsn['password'],null,$char);}} else {$connect_function = $persistent ? 'OCIPLogon' : 'OCILogon';if ($dsn['hostspec']) {$this->connection = @$connect_function($dsn['username'],$dsn['password'],$dsn['hostspec']);} elseif ($dsn['username'] || $dsn['password']) {$this->connection = @$connect_function($dsn['username'],$dsn['password']);}}if (!$this->connection) {$error = OCIError();$error = (is_array($error)) ? $error['message'] : null;return $this->raiseError(DB_ERROR_CONNECT_FAILED,null, null, null,$error);}return DB_OK;}// }}}// {{{ disconnect()/*** Disconnects from the database server** @return bool TRUE on success, FALSE on failure*/function disconnect(){if (function_exists('oci_close')) {$ret = @oci_close($this->connection);} else {$ret = @OCILogOff($this->connection);}$this->connection = null;return $ret;}// }}}// {{{ simpleQuery()/*** Sends a query to the database server** To determine how many rows of a result set get buffered using* ocisetprefetch(), see the "result_buffering" option in setOptions().* This option was added in Release 1.7.0.** @param string the SQL query string** @return mixed + a PHP result resrouce for successful SELECT queries* + the DB_OK constant for other successful queries* + a DB_Error object on failure*/function simpleQuery($query){$this->_data = array();$this->last_parameters = array();$this->last_query = $query;$query = $this->modifyQuery($query);$result = @OCIParse($this->connection, $query);if (!$result) {return $this->oci8RaiseError();}if ($this->autocommit) {$success = @OCIExecute($result,OCI_COMMIT_ON_SUCCESS);} else {$success = @OCIExecute($result,OCI_DEFAULT);}if (!$success) {return $this->oci8RaiseError($result);}$this->last_stmt = $result;if (DB::isManip($query)) {return DB_OK;} else {@ocisetprefetch($result, $this->options['result_buffering']);return $result;}}// }}}// {{{ nextResult()/*** Move the internal oracle result pointer to the next available result** @param a valid oci8 result resource** @access public** @return true if a result is available otherwise return false*/function nextResult($result){return false;}// }}}// {{{ 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) {return $this->raiseError(DB_ERROR_NOT_CAPABLE);}if ($fetchmode & DB_FETCHMODE_ASSOC) {$moredata = @OCIFetchInto($result,$arr,OCI_ASSOC+OCI_RETURN_NULLS+OCI_RETURN_LOBS);if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE &&$moredata){$arr = array_change_key_case($arr, CASE_LOWER);}} else {$moredata = OCIFetchInto($result,$arr,OCI_RETURN_NULLS+OCI_RETURN_LOBS);}if (!$moredata) {return null;}if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {$this->_rtrimArrayValues($arr);}if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {$this->_convertNullArrayValuesToEmpty($arr);}return DB_OK;}// }}}// {{{ 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 @OCIFreeStatement($result);}/*** Frees the internal resources associated with a prepared query** @param resource $stmt the prepared statement's resource* @param bool $free_resource should the PHP resource be freed too?* Use false if you need to get data* from the result set later.** @return bool TRUE on success, FALSE if $result is invalid** @see DB_oci8::prepare()*/function freePrepared($stmt, $free_resource = true){if (!is_resource($stmt)) {return false;}if ($free_resource) {@ocifreestatement($stmt);}if (isset($this->prepare_types[(int)$stmt])) {unset($this->prepare_types[(int)$stmt]);unset($this->manip_query[(int)$stmt]);} else {return false;}return true;}// }}}// {{{ numRows()/*** Gets the number of rows in a result set** Only works if the DB_PORTABILITY_NUMROWS portability option* is turned on.** This method is not meant to be called directly. Use* DB_result::numRows() instead. It can't be declared "protected"* because DB_result is a separate object.** @param resource $result PHP's query result resource** @return int the number of rows. A DB_Error object on failure.** @see DB_result::numRows(), DB_common::setOption()*/function numRows($result){// emulate numRows for Oracle. yuck.if ($this->options['portability'] & DB_PORTABILITY_NUMROWS &&$result === $this->last_stmt){$countquery = 'SELECT COUNT(*) FROM ('.$this->last_query.')';$save_query = $this->last_query;$save_stmt = $this->last_stmt;if (count($this->_data)) {$smt = $this->prepare('SELECT COUNT(*) FROM ('.$this->last_query.')');$count = $this->execute($smt, $this->_data);} else {$count =& $this->query($countquery);}if (DB::isError($count) ||DB::isError($row = $count->fetchRow(DB_FETCHMODE_ORDERED))){$this->last_query = $save_query;$this->last_stmt = $save_stmt;return $this->raiseError(DB_ERROR_NOT_CAPABLE);}return $row[0];}return $this->raiseError(DB_ERROR_NOT_CAPABLE);}// }}}// {{{ 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){$cols = @OCINumCols($result);if (!$cols) {return $this->oci8RaiseError($result);}return $cols;}// }}}// {{{ prepare()/*** Prepares a query for multiple execution with execute().** With oci8, this is emulated.** prepare() requires a generic query as string like <code>* INSERT INTO numbers VALUES (?, ?, ?)* </code>. The <kbd>?</kbd> characters are placeholders.** Three types of placeholders can be used:* + <kbd>?</kbd> a quoted scalar value, i.e. strings, integers* + <kbd>!</kbd> value is inserted 'as is'* + <kbd>&</kbd> requires a file name. The file's contents get* inserted into the query (i.e. saving binary* data in a db)** Use backslashes to escape placeholder characters if you don't want* them to be interpreted as placeholders. Example: <code>* "UPDATE foo SET col=? WHERE col='over \& under'"* </code>** @param string $query the query to be prepared** @return mixed DB statement resource on success. DB_Error on failure.** @see DB_oci8::execute()*/function prepare($query){$tokens = preg_split('/((?<!\\\)[&?!])/', $query, -1,PREG_SPLIT_DELIM_CAPTURE);$binds = count($tokens) - 1;$token = 0;$types = array();$newquery = '';foreach ($tokens as $key => $val) {switch ($val) {case '?':$types[$token++] = DB_PARAM_SCALAR;unset($tokens[$key]);break;case '&':$types[$token++] = DB_PARAM_OPAQUE;unset($tokens[$key]);break;case '!':$types[$token++] = DB_PARAM_MISC;unset($tokens[$key]);break;default:$tokens[$key] = preg_replace('/\\\([&?!])/', "\\1", $val);if ($key != $binds) {$newquery .= $tokens[$key] . ':bind' . $token;} else {$newquery .= $tokens[$key];}}}$this->last_query = $query;$newquery = $this->modifyQuery($newquery);if (!$stmt = @OCIParse($this->connection, $newquery)) {return $this->oci8RaiseError();}$this->prepare_types[(int)$stmt] = $types;$this->manip_query[(int)$stmt] = DB::isManip($query);return $stmt;}// }}}// {{{ execute()/*** Executes a DB statement prepared with prepare().** To determine how many rows of a result set get buffered using* ocisetprefetch(), see the "result_buffering" option in setOptions().* This option was added in Release 1.7.0.** @param resource $stmt a DB statement resource returned from prepare()* @param mixed $data array, string or numeric data to be used in* execution of the statement. Quantity of items* passed must match quantity of placeholders in* query: meaning 1 for non-array items or the* quantity of elements in the array.** @return mixed returns an oic8 result resource for successful SELECT* queries, DB_OK for other successful queries.* A DB error object is returned on failure.** @see DB_oci8::prepare()*/function &execute($stmt, $data = array()){$data = (array)$data;$this->last_parameters = $data;$this->_data = $data;$types =& $this->prepare_types[(int)$stmt];if (count($types) != count($data)) {$tmp =& $this->raiseError(DB_ERROR_MISMATCH);return $tmp;}$i = 0;foreach ($data as $key => $value) {if ($types[$i] == DB_PARAM_MISC) {/** Oracle doesn't seem to have the ability to pass a* parameter along unchanged, so strip off quotes from start* and end, plus turn two single quotes to one single quote,* in order to avoid the quotes getting escaped by* Oracle and ending up in the database.*/$data[$key] = preg_replace("/^'(.*)'$/", "\\1", $data[$key]);$data[$key] = str_replace("''", "'", $data[$key]);} elseif ($types[$i] == DB_PARAM_OPAQUE) {$fp = @fopen($data[$key], 'rb');if (!$fp) {$tmp =& $this->raiseError(DB_ERROR_ACCESS_VIOLATION);return $tmp;}$data[$key] = fread($fp, filesize($data[$key]));fclose($fp);}if (!@OCIBindByName($stmt, ':bind' . $i, $data[$key], -1)) {$tmp = $this->oci8RaiseError($stmt);return $tmp;}$i++;}if ($this->autocommit) {$success = @OCIExecute($stmt, OCI_COMMIT_ON_SUCCESS);} else {$success = @OCIExecute($stmt, OCI_DEFAULT);}if (!$success) {$tmp = $this->oci8RaiseError($stmt);return $tmp;}$this->last_stmt = $stmt;if ($this->manip_query[(int)$stmt]) {$tmp = DB_OK;} else {@ocisetprefetch($stmt, $this->options['result_buffering']);$tmp =& new DB_result($this, $stmt);}return $tmp;}// }}}// {{{ 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 = false){$this->autocommit = (bool)$onoff;;return DB_OK;}// }}}// {{{ commit()/*** Commits the current transaction** @return int DB_OK on success. A DB_Error object on failure.*/function commit(){$result = @OCICommit($this->connection);if (!$result) {return $this->oci8RaiseError();}return DB_OK;}// }}}// {{{ rollback()/*** Reverts the current transaction** @return int DB_OK on success. A DB_Error object on failure.*/function rollback(){$result = @OCIRollback($this->connection);if (!$result) {return $this->oci8RaiseError();}return DB_OK;}// }}}// {{{ affectedRows()/*** Determines the number of rows affected by a data maniuplation query** 0 is returned for queries that don't manipulate data.** @return int the number of rows. A DB_Error object on failure.*/function affectedRows(){if ($this->last_stmt === false) {return $this->oci8RaiseError();}$result = @OCIRowCount($this->last_stmt);if ($result === false) {return $this->oci8RaiseError($this->last_stmt);}return $result;}// }}}// {{{ modifyQuery()/*** Changes a query string for various DBMS specific reasons** "SELECT 2+2" must be "SELECT 2+2 FROM dual" in Oracle.** @param string $query the query string to modify** @return string the modified query string** @access protected*/function modifyQuery($query){if (preg_match('/^\s*SELECT/i', $query) &&!preg_match('/\sFROM\s/i', $query)) {$query .= ' FROM dual';}return $query;}// }}}// {{{ modifyLimitQuery()/*** Adds LIMIT clauses to a query string according to current DBMS standards** @param string $query the query to modify* @param int $from the row to start to fetching (0 = the first row)* @param int $count the numbers of rows to fetch* @param mixed $params array, string or numeric data to be used in* execution of the statement. Quantity of items* passed must match quantity of placeholders in* query: meaning 1 placeholder for non-array* parameters or 1 placeholder per array element.** @return string the query string with LIMIT clauses added** @access protected*/function modifyLimitQuery($query, $from, $count, $params = array()){// Let Oracle return the name of the columns instead of// coding a "home" SQL parserif (count($params)) {$result = $this->prepare("SELECT * FROM ($query) ". 'WHERE NULL = NULL');$tmp =& $this->execute($result, $params);} else {$q_fields = "SELECT * FROM ($query) WHERE NULL = NULL";if (!$result = @OCIParse($this->connection, $q_fields)) {$this->last_query = $q_fields;return $this->oci8RaiseError();}if (!@OCIExecute($result, OCI_DEFAULT)) {$this->last_query = $q_fields;return $this->oci8RaiseError($result);}}$ncols = OCINumCols($result);$cols = array();for ( $i = 1; $i <= $ncols; $i++ ) {$cols[] = '"' . OCIColumnName($result, $i) . '"';}$fields = implode(', ', $cols);// XXX Test that (tip by John Lim)//if (preg_match('/^\s*SELECT\s+/is', $query, $match)) {// // Introduce the FIRST_ROWS Oracle query optimizer// $query = substr($query, strlen($match[0]), strlen($query));// $query = "SELECT /* +FIRST_ROWS */ " . $query;//}// Construct the query// more at: http://marc.theaimsgroup.com/?l=php-db&m=99831958101212&w=2// Perhaps this could be optimized with the use of Unions$query = "SELECT $fields FROM"." (SELECT rownum as linenum, $fields FROM"." ($query)".' WHERE rownum <= '. ($from + $count) .') WHERE linenum >= ' . ++$from;return $query;}// }}}// {{{ nextId()/*** Returns the next free id in a sequence** @param string $seq_name name of the sequence* @param boolean $ondemand when true, the seqence is automatically* created if it does not exist** @return int the next id number in the sequence.* A DB_Error object on failure.** @see DB_common::nextID(), DB_common::getSequenceName(),* DB_oci8::createSequence(), DB_oci8::dropSequence()*/function nextId($seq_name, $ondemand = true){$seqname = $this->getSequenceName($seq_name);$repeat = 0;do {$this->expectError(DB_ERROR_NOSUCHTABLE);$result =& $this->query("SELECT ${seqname}.nextval FROM dual");$this->popExpect();if ($ondemand && DB::isError($result) &&$result->getCode() == DB_ERROR_NOSUCHTABLE) {$repeat = 1;$result = $this->createSequence($seq_name);if (DB::isError($result)) {return $this->raiseError($result);}} else {$repeat = 0;}} while ($repeat);if (DB::isError($result)) {return $this->raiseError($result);}$arr = $result->fetchRow(DB_FETCHMODE_ORDERED);return $arr[0];}/*** Creates a new sequence** @param string $seq_name name of the new sequence** @return int DB_OK on success. A DB_Error object on failure.** @see DB_common::createSequence(), DB_common::getSequenceName(),* DB_oci8::nextID(), DB_oci8::dropSequence()*/function createSequence($seq_name){return $this->query('CREATE SEQUENCE '. $this->getSequenceName($seq_name));}// }}}// {{{ dropSequence()/*** Deletes a sequence** @param string $seq_name name of the sequence to be deleted** @return int DB_OK on success. A DB_Error object on failure.** @see DB_common::dropSequence(), DB_common::getSequenceName(),* DB_oci8::nextID(), DB_oci8::createSequence()*/function dropSequence($seq_name){return $this->query('DROP SEQUENCE '. $this->getSequenceName($seq_name));}// }}}// {{{ oci8RaiseError()/*** Produces a DB_Error object regarding the current problem** @param int $errno if the error is being manually raised pass a* DB_ERROR* constant here. If this isn't passed* the error information gathered from the DBMS.** @return object the DB_Error object** @see DB_common::raiseError(),* DB_oci8::errorNative(), DB_oci8::errorCode()*/function oci8RaiseError($errno = null){if ($errno === null) {$error = @OCIError($this->connection);return $this->raiseError($this->errorCode($error['code']),null, null, null, $error['message']);} elseif (is_resource($errno)) {$error = @OCIError($errno);return $this->raiseError($this->errorCode($error['code']),null, null, null, $error['message']);}return $this->raiseError($this->errorCode($errno));}// }}}// {{{ errorNative()/*** Gets the DBMS' native error code produced by the last query** @return int the DBMS' error code. FALSE if the code could not be* determined*/function errorNative(){if (is_resource($this->last_stmt)) {$error = @OCIError($this->last_stmt);} else {$error = @OCIError($this->connection);}if (is_array($error)) {return $error['code'];}return false;}// }}}// {{{ tableInfo()/*** Returns information about a table or a result set** NOTE: only supports 'table' and 'flags' if <var>$result</var>* is a table name.** NOTE: flags won't contain index information.** @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 $mode a valid tableInfo mode** @return array an associative array with the information requested.* A DB_Error object on failure.** @see DB_common::tableInfo()*/function tableInfo($result, $mode = null){if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {$case_func = 'strtolower';} else {$case_func = 'strval';}$res = array();if (is_string($result)) {/** Probably received a table name.* Create a result resource identifier.*/$result = strtoupper($result);$q_fields = 'SELECT column_name, data_type, data_length, '. 'nullable '. 'FROM user_tab_columns '. "WHERE table_name='$result' ORDER BY column_id";$this->last_query = $q_fields;if (!$stmt = @OCIParse($this->connection, $q_fields)) {return $this->oci8RaiseError(DB_ERROR_NEED_MORE_DATA);}if (!@OCIExecute($stmt, OCI_DEFAULT)) {return $this->oci8RaiseError($stmt);}$i = 0;while (@OCIFetch($stmt)) {$res[$i] = array('table' => $case_func($result),'name' => $case_func(@OCIResult($stmt, 1)),'type' => @OCIResult($stmt, 2),'len' => @OCIResult($stmt, 3),'flags' => (@OCIResult($stmt, 4) == 'N') ? 'not_null' : '',);if ($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++;}if ($mode) {$res['num_fields'] = $i;}@OCIFreeStatement($stmt);} else {if (isset($result->result)) {/** Probably received a result object.* Extract the result resource identifier.*/$result = $result->result;}$res = array();if ($result === $this->last_stmt) {$count = @OCINumCols($result);if ($mode) {$res['num_fields'] = $count;}for ($i = 0; $i < $count; $i++) {$res[$i] = array('table' => '','name' => $case_func(@OCIColumnName($result, $i+1)),'type' => @OCIColumnType($result, $i+1),'len' => @OCIColumnSize($result, $i+1),'flags' => '',);if ($mode & DB_TABLEINFO_ORDER) {$res['order'][$res[$i]['name']] = $i;}if ($mode & DB_TABLEINFO_ORDERTABLE) {$res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;}}} else {return $this->raiseError(DB_ERROR_NOT_CAPABLE);}}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 table_name FROM user_tables';case 'synonyms':return 'SELECT synonym_name FROM user_synonyms';default:return null;}}// }}}}/** Local variables:* tab-width: 4* c-basic-offset: 4* End:*/?>