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<?php
2
/**
3
 * PHPExcel
4
 *
5
 * Copyright (c) 2006 - 2013 PHPExcel
6
 *
7
 * This library is free software; you can redistribute it and/or
8
 * modify it under the terms of the GNU Lesser General Public
9
 * License as published by the Free Software Foundation; either
10
 * version 2.1 of the License, or (at your option) any later version.
11
 *
12
 * This library is distributed in the hope that it will be useful,
13
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15
 * Lesser General Public License for more details.
16
 *
17
 * You should have received a copy of the GNU Lesser General Public
18
 * License along with this library; if not, write to the Free Software
19
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20
 *
21
 * @category	PHPExcel
22
 * @package		PHPExcel_Calculation
23
 * @copyright	Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel)
24
 * @license		http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
25
 * @version		##VERSION##, ##DATE##
26
 */
27
 
28
 
29
/** PHPExcel root directory */
30
if (!defined('PHPEXCEL_ROOT')) {
31
	/**
32
	 * @ignore
33
	 */
34
	define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../');
35
	require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
36
}
37
 
38
 
39
/**
40
 * PHPExcel_Calculation_LookupRef
41
 *
42
 * @category	PHPExcel
43
 * @package		PHPExcel_Calculation
44
 * @copyright	Copyright (c) 2006 - 2013 PHPExcel (http://www.codeplex.com/PHPExcel)
45
 */
46
class PHPExcel_Calculation_LookupRef {
47
 
48
 
49
	/**
50
	 * CELL_ADDRESS
51
	 *
52
	 * Creates a cell address as text, given specified row and column numbers.
53
	 *
54
	 * Excel Function:
55
	 *		=ADDRESS(row, column, [relativity], [referenceStyle], [sheetText])
56
	 *
57
	 * @param	row				Row number to use in the cell reference
58
	 * @param	column			Column number to use in the cell reference
59
	 * @param	relativity		Flag indicating the type of reference to return
60
	 *								1 or omitted	Absolute
61
	 *								2				Absolute row; relative column
62
	 *								3				Relative row; absolute column
63
	 *								4				Relative
64
	 * @param	referenceStyle	A logical value that specifies the A1 or R1C1 reference style.
65
	 *								TRUE or omitted		CELL_ADDRESS returns an A1-style reference
66
	 *								FALSE				CELL_ADDRESS returns an R1C1-style reference
67
	 * @param	sheetText		Optional Name of worksheet to use
68
	 * @return	string
69
	 */
70
	public static function CELL_ADDRESS($row, $column, $relativity=1, $referenceStyle=True, $sheetText='') {
71
		$row		= PHPExcel_Calculation_Functions::flattenSingleValue($row);
72
		$column		= PHPExcel_Calculation_Functions::flattenSingleValue($column);
73
		$relativity	= PHPExcel_Calculation_Functions::flattenSingleValue($relativity);
74
		$sheetText	= PHPExcel_Calculation_Functions::flattenSingleValue($sheetText);
75
 
76
		if (($row < 1) || ($column < 1)) {
77
			return PHPExcel_Calculation_Functions::VALUE();
78
		}
79
 
80
		if ($sheetText > '') {
81
			if (strpos($sheetText,' ') !== False) { $sheetText = "'".$sheetText."'"; }
82
			$sheetText .='!';
83
		}
84
		if ((!is_bool($referenceStyle)) || $referenceStyle) {
85
			$rowRelative = $columnRelative = '$';
86
			$column = PHPExcel_Cell::stringFromColumnIndex($column-1);
87
			if (($relativity == 2) || ($relativity == 4)) { $columnRelative = ''; }
88
			if (($relativity == 3) || ($relativity == 4)) { $rowRelative = ''; }
89
			return $sheetText.$columnRelative.$column.$rowRelative.$row;
90
		} else {
91
			if (($relativity == 2) || ($relativity == 4)) { $column = '['.$column.']'; }
92
			if (($relativity == 3) || ($relativity == 4)) { $row = '['.$row.']'; }
93
			return $sheetText.'R'.$row.'C'.$column;
94
		}
95
	}	//	function CELL_ADDRESS()
96
 
97
 
98
	/**
99
	 * COLUMN
100
	 *
101
	 * Returns the column number of the given cell reference
102
	 * If the cell reference is a range of cells, COLUMN returns the column numbers of each column in the reference as a horizontal array.
103
	 * If cell reference is omitted, and the function is being called through the calculation engine, then it is assumed to be the
104
	 *		reference of the cell in which the COLUMN function appears; otherwise this function returns 0.
105
	 *
106
	 * Excel Function:
107
	 *		=COLUMN([cellAddress])
108
	 *
109
	 * @param	cellAddress		A reference to a range of cells for which you want the column numbers
110
	 * @return	integer or array of integer
111
	 */
112
	public static function COLUMN($cellAddress=Null) {
113
		if (is_null($cellAddress) || trim($cellAddress) === '') { return 0; }
114
 
115
		if (is_array($cellAddress)) {
116
			foreach($cellAddress as $columnKey => $value) {
117
				$columnKey = preg_replace('/[^a-z]/i','',$columnKey);
118
				return (integer) PHPExcel_Cell::columnIndexFromString($columnKey);
119
			}
120
		} else {
121
			if (strpos($cellAddress,'!') !== false) {
122
				list($sheet,$cellAddress) = explode('!',$cellAddress);
123
			}
124
			if (strpos($cellAddress,':') !== false) {
125
				list($startAddress,$endAddress) = explode(':',$cellAddress);
126
				$startAddress = preg_replace('/[^a-z]/i','',$startAddress);
127
				$endAddress = preg_replace('/[^a-z]/i','',$endAddress);
128
				$returnValue = array();
129
				do {
130
					$returnValue[] = (integer) PHPExcel_Cell::columnIndexFromString($startAddress);
131
				} while ($startAddress++ != $endAddress);
132
				return $returnValue;
133
			} else {
134
				$cellAddress = preg_replace('/[^a-z]/i','',$cellAddress);
135
				return (integer) PHPExcel_Cell::columnIndexFromString($cellAddress);
136
			}
137
		}
138
	}	//	function COLUMN()
139
 
140
 
141
	/**
142
	 * COLUMNS
143
	 *
144
	 * Returns the number of columns in an array or reference.
145
	 *
146
	 * Excel Function:
147
	 *		=COLUMNS(cellAddress)
148
	 *
149
	 * @param	cellAddress		An array or array formula, or a reference to a range of cells for which you want the number of columns
150
	 * @return	integer			The number of columns in cellAddress
151
	 */
152
	public static function COLUMNS($cellAddress=Null) {
153
		if (is_null($cellAddress) || $cellAddress === '') {
154
			return 1;
155
		} elseif (!is_array($cellAddress)) {
156
			return PHPExcel_Calculation_Functions::VALUE();
157
		}
158
 
159
		$x = array_keys($cellAddress);
160
		$x = array_shift($x);
161
		$isMatrix = (is_numeric($x));
162
		list($columns,$rows) = PHPExcel_Calculation::_getMatrixDimensions($cellAddress);
163
 
164
		if ($isMatrix) {
165
			return $rows;
166
		} else {
167
			return $columns;
168
		}
169
	}	//	function COLUMNS()
170
 
171
 
172
	/**
173
	 * ROW
174
	 *
175
	 * Returns the row number of the given cell reference
176
	 * If the cell reference is a range of cells, ROW returns the row numbers of each row in the reference as a vertical array.
177
	 * If cell reference is omitted, and the function is being called through the calculation engine, then it is assumed to be the
178
	 *		reference of the cell in which the ROW function appears; otherwise this function returns 0.
179
	 *
180
	 * Excel Function:
181
	 *		=ROW([cellAddress])
182
	 *
183
	 * @param	cellAddress		A reference to a range of cells for which you want the row numbers
184
	 * @return	integer or array of integer
185
	 */
186
	public static function ROW($cellAddress=Null) {
187
		if (is_null($cellAddress) || trim($cellAddress) === '') { return 0; }
188
 
189
		if (is_array($cellAddress)) {
190
			foreach($cellAddress as $columnKey => $rowValue) {
191
				foreach($rowValue as $rowKey => $cellValue) {
192
					return (integer) preg_replace('/[^0-9]/i','',$rowKey);
193
				}
194
			}
195
		} else {
196
			if (strpos($cellAddress,'!') !== false) {
197
				list($sheet,$cellAddress) = explode('!',$cellAddress);
198
			}
199
			if (strpos($cellAddress,':') !== false) {
200
				list($startAddress,$endAddress) = explode(':',$cellAddress);
201
				$startAddress = preg_replace('/[^0-9]/','',$startAddress);
202
				$endAddress = preg_replace('/[^0-9]/','',$endAddress);
203
				$returnValue = array();
204
				do {
205
					$returnValue[][] = (integer) $startAddress;
206
				} while ($startAddress++ != $endAddress);
207
				return $returnValue;
208
			} else {
209
				list($cellAddress) = explode(':',$cellAddress);
210
				return (integer) preg_replace('/[^0-9]/','',$cellAddress);
211
			}
212
		}
213
	}	//	function ROW()
214
 
215
 
216
	/**
217
	 * ROWS
218
	 *
219
	 * Returns the number of rows in an array or reference.
220
	 *
221
	 * Excel Function:
222
	 *		=ROWS(cellAddress)
223
	 *
224
	 * @param	cellAddress		An array or array formula, or a reference to a range of cells for which you want the number of rows
225
	 * @return	integer			The number of rows in cellAddress
226
	 */
227
	public static function ROWS($cellAddress=Null) {
228
		if (is_null($cellAddress) || $cellAddress === '') {
229
			return 1;
230
		} elseif (!is_array($cellAddress)) {
231
			return PHPExcel_Calculation_Functions::VALUE();
232
		}
233
 
234
		$i = array_keys($cellAddress);
235
		$isMatrix = (is_numeric(array_shift($i)));
236
		list($columns,$rows) = PHPExcel_Calculation::_getMatrixDimensions($cellAddress);
237
 
238
		if ($isMatrix) {
239
			return $columns;
240
		} else {
241
			return $rows;
242
		}
243
	}	//	function ROWS()
244
 
245
 
246
	/**
247
	 * HYPERLINK
248
	 *
249
	 * Excel Function:
250
	 *		=HYPERLINK(linkURL,displayName)
251
	 *
252
	 * @access	public
253
	 * @category Logical Functions
254
	 * @param	string			$linkURL		Value to check, is also the value returned when no error
255
	 * @param	string			$displayName	Value to return when testValue is an error condition
256
	 * @param	PHPExcel_Cell	$pCell			The cell to set the hyperlink in
257
	 * @return	mixed	The value of $displayName (or $linkURL if $displayName was blank)
258
	 */
259
	public static function HYPERLINK($linkURL = '', $displayName = null, PHPExcel_Cell $pCell = null) {
260
		$args = func_get_args();
261
		$pCell = array_pop($args);
262
 
263
		$linkURL		= (is_null($linkURL))		? '' :	PHPExcel_Calculation_Functions::flattenSingleValue($linkURL);
264
		$displayName	= (is_null($displayName))	? '' :	PHPExcel_Calculation_Functions::flattenSingleValue($displayName);
265
 
266
		if ((!is_object($pCell)) || (trim($linkURL) == '')) {
267
			return PHPExcel_Calculation_Functions::REF();
268
		}
269
 
270
		if ((is_object($displayName)) || trim($displayName) == '') {
271
			$displayName = $linkURL;
272
		}
273
 
274
		$pCell->getHyperlink()->setUrl($linkURL);
275
 
276
		return $displayName;
277
	}	//	function HYPERLINK()
278
 
279
 
280
	/**
281
	 * INDIRECT
282
	 *
283
	 * Returns the reference specified by a text string.
284
	 * References are immediately evaluated to display their contents.
285
	 *
286
	 * Excel Function:
287
	 *		=INDIRECT(cellAddress)
288
	 *
289
	 * NOTE - INDIRECT() does not yet support the optional a1 parameter introduced in Excel 2010
290
	 *
291
	 * @param	cellAddress		$cellAddress	The cell address of the current cell (containing this formula)
292
	 * @param	PHPExcel_Cell	$pCell			The current cell (containing this formula)
293
	 * @return	mixed			The cells referenced by cellAddress
294
	 *
295
	 * @todo	Support for the optional a1 parameter introduced in Excel 2010
296
	 *
297
	 */
298
	public static function INDIRECT($cellAddress = NULL, PHPExcel_Cell $pCell = NULL) {
299
		$cellAddress	= PHPExcel_Calculation_Functions::flattenSingleValue($cellAddress);
300
		if (is_null($cellAddress) || $cellAddress === '') {
301
			return PHPExcel_Calculation_Functions::REF();
302
		}
303
 
304
		$cellAddress1 = $cellAddress;
305
		$cellAddress2 = NULL;
306
		if (strpos($cellAddress,':') !== false) {
307
			list($cellAddress1,$cellAddress2) = explode(':',$cellAddress);
308
		}
309
 
310
		if ((!preg_match('/^'.PHPExcel_Calculation::CALCULATION_REGEXP_CELLREF.'$/i', $cellAddress1, $matches)) ||
311
			((!is_null($cellAddress2)) && (!preg_match('/^'.PHPExcel_Calculation::CALCULATION_REGEXP_CELLREF.'$/i', $cellAddress2, $matches)))) {
312
			if (!preg_match('/^'.PHPExcel_Calculation::CALCULATION_REGEXP_NAMEDRANGE.'$/i', $cellAddress1, $matches)) {
313
				return PHPExcel_Calculation_Functions::REF();
314
			}
315
 
316
			if (strpos($cellAddress,'!') !== FALSE) {
317
				list($sheetName, $cellAddress) = explode('!',$cellAddress);
318
				$sheetName = trim($sheetName, "'");
319
				$pSheet = $pCell->getParent()->getParent()->getSheetByName($sheetName);
320
			} else {
321
				$pSheet = $pCell->getParent();
322
			}
323
 
324
			return PHPExcel_Calculation::getInstance()->extractNamedRange($cellAddress, $pSheet, FALSE);
325
		}
326
 
327
		if (strpos($cellAddress,'!') !== FALSE) {
328
			list($sheetName,$cellAddress) = explode('!',$cellAddress);
329
			$sheetName = trim($sheetName, "'");
330
			$pSheet = $pCell->getParent()->getParent()->getSheetByName($sheetName);
331
		} else {
332
			$pSheet = $pCell->getParent();
333
		}
334
 
335
		return PHPExcel_Calculation::getInstance()->extractCellRange($cellAddress, $pSheet, FALSE);
336
	}	//	function INDIRECT()
337
 
338
 
339
	/**
340
	 * OFFSET
341
	 *
342
	 * Returns a reference to a range that is a specified number of rows and columns from a cell or range of cells.
343
	 * The reference that is returned can be a single cell or a range of cells. You can specify the number of rows and
344
	 * the number of columns to be returned.
345
	 *
346
	 * Excel Function:
347
	 *		=OFFSET(cellAddress, rows, cols, [height], [width])
348
	 *
349
	 * @param	cellAddress		The reference from which you want to base the offset. Reference must refer to a cell or
350
	 *								range of adjacent cells; otherwise, OFFSET returns the #VALUE! error value.
351
	 * @param	rows			The number of rows, up or down, that you want the upper-left cell to refer to.
352
	 *								Using 5 as the rows argument specifies that the upper-left cell in the reference is
353
	 *								five rows below reference. Rows can be positive (which means below the starting reference)
354
	 *								or negative (which means above the starting reference).
355
	 * @param	cols			The number of columns, to the left or right, that you want the upper-left cell of the result
356
	 *								to refer to. Using 5 as the cols argument specifies that the upper-left cell in the
357
	 *								reference is five columns to the right of reference. Cols can be positive (which means
358
	 *								to the right of the starting reference) or negative (which means to the left of the
359
	 *								starting reference).
360
	 * @param	height			The height, in number of rows, that you want the returned reference to be. Height must be a positive number.
361
	 * @param	width			The width, in number of columns, that you want the returned reference to be. Width must be a positive number.
362
	 * @return	string			A reference to a cell or range of cells
363
	 */
364
	public static function OFFSET($cellAddress=Null,$rows=0,$columns=0,$height=null,$width=null) {
365
		$rows		= PHPExcel_Calculation_Functions::flattenSingleValue($rows);
366
		$columns	= PHPExcel_Calculation_Functions::flattenSingleValue($columns);
367
		$height		= PHPExcel_Calculation_Functions::flattenSingleValue($height);
368
		$width		= PHPExcel_Calculation_Functions::flattenSingleValue($width);
369
		if ($cellAddress == Null) {
370
			return 0;
371
		}
372
 
373
		$args = func_get_args();
374
		$pCell = array_pop($args);
375
		if (!is_object($pCell)) {
376
			return PHPExcel_Calculation_Functions::REF();
377
		}
378
 
379
		$sheetName = NULL;
380
		if (strpos($cellAddress,"!")) {
381
			list($sheetName,$cellAddress) = explode("!",$cellAddress);
382
			$sheetName = trim($sheetName, "'");
383
		}
384
		if (strpos($cellAddress,":")) {
385
			list($startCell,$endCell) = explode(":",$cellAddress);
386
		} else {
387
			$startCell = $endCell = $cellAddress;
388
		}
389
		list($startCellColumn,$startCellRow) = PHPExcel_Cell::coordinateFromString($startCell);
390
		list($endCellColumn,$endCellRow) = PHPExcel_Cell::coordinateFromString($endCell);
391
 
392
		$startCellRow += $rows;
393
		$startCellColumn = PHPExcel_Cell::columnIndexFromString($startCellColumn) - 1;
394
		$startCellColumn += $columns;
395
 
396
		if (($startCellRow <= 0) || ($startCellColumn < 0)) {
397
			return PHPExcel_Calculation_Functions::REF();
398
		}
399
		$endCellColumn = PHPExcel_Cell::columnIndexFromString($endCellColumn) - 1;
400
		if (($width != null) && (!is_object($width))) {
401
			$endCellColumn = $startCellColumn + $width - 1;
402
		} else {
403
			$endCellColumn += $columns;
404
		}
405
		$startCellColumn = PHPExcel_Cell::stringFromColumnIndex($startCellColumn);
406
 
407
		if (($height != null) && (!is_object($height))) {
408
			$endCellRow = $startCellRow + $height - 1;
409
		} else {
410
			$endCellRow += $rows;
411
		}
412
 
413
		if (($endCellRow <= 0) || ($endCellColumn < 0)) {
414
			return PHPExcel_Calculation_Functions::REF();
415
		}
416
		$endCellColumn = PHPExcel_Cell::stringFromColumnIndex($endCellColumn);
417
 
418
		$cellAddress = $startCellColumn.$startCellRow;
419
		if (($startCellColumn != $endCellColumn) || ($startCellRow != $endCellRow)) {
420
			$cellAddress .= ':'.$endCellColumn.$endCellRow;
421
		}
422
 
423
		if ($sheetName !== NULL) {
424
			$pSheet = $pCell->getParent()->getParent()->getSheetByName($sheetName);
425
		} else {
426
			$pSheet = $pCell->getParent();
427
		}
428
 
429
		return PHPExcel_Calculation::getInstance()->extractCellRange($cellAddress, $pSheet, False);
430
	}	//	function OFFSET()
431
 
432
 
433
	/**
434
	 * CHOOSE
435
	 *
436
	 * Uses lookup_value to return a value from the list of value arguments.
437
	 * Use CHOOSE to select one of up to 254 values based on the lookup_value.
438
	 *
439
	 * Excel Function:
440
	 *		=CHOOSE(index_num, value1, [value2], ...)
441
	 *
442
	 * @param	index_num		Specifies which value argument is selected.
443
	 *							Index_num must be a number between 1 and 254, or a formula or reference to a cell containing a number
444
	 *								between 1 and 254.
445
	 * @param	value1...		Value1 is required, subsequent values are optional.
446
	 *							Between 1 to 254 value arguments from which CHOOSE selects a value or an action to perform based on
447
	 *								index_num. The arguments can be numbers, cell references, defined names, formulas, functions, or
448
	 *								text.
449
	 * @return	mixed			The selected value
450
	 */
451
	public static function CHOOSE() {
452
		$chooseArgs = func_get_args();
453
		$chosenEntry = PHPExcel_Calculation_Functions::flattenArray(array_shift($chooseArgs));
454
		$entryCount = count($chooseArgs) - 1;
455
 
456
		if(is_array($chosenEntry)) {
457
			$chosenEntry = array_shift($chosenEntry);
458
		}
459
		if ((is_numeric($chosenEntry)) && (!is_bool($chosenEntry))) {
460
			--$chosenEntry;
461
		} else {
462
			return PHPExcel_Calculation_Functions::VALUE();
463
		}
464
		$chosenEntry = floor($chosenEntry);
465
		if (($chosenEntry <= 0) || ($chosenEntry > $entryCount)) {
466
			return PHPExcel_Calculation_Functions::VALUE();
467
		}
468
 
469
		if (is_array($chooseArgs[$chosenEntry])) {
470
			return PHPExcel_Calculation_Functions::flattenArray($chooseArgs[$chosenEntry]);
471
		} else {
472
			return $chooseArgs[$chosenEntry];
473
		}
474
	}	//	function CHOOSE()
475
 
476
 
477
	/**
478
	 * MATCH
479
	 *
480
	 * The MATCH function searches for a specified item in a range of cells
481
	 *
482
	 * Excel Function:
483
	 *		=MATCH(lookup_value, lookup_array, [match_type])
484
	 *
485
	 * @param	lookup_value	The value that you want to match in lookup_array
486
	 * @param	lookup_array	The range of cells being searched
487
	 * @param	match_type		The number -1, 0, or 1. -1 means above, 0 means exact match, 1 means below. If match_type is 1 or -1, the list has to be ordered.
488
	 * @return	integer			The relative position of the found item
489
	 */
490
	public static function MATCH($lookup_value, $lookup_array, $match_type=1) {
491
		$lookup_array = PHPExcel_Calculation_Functions::flattenArray($lookup_array);
492
		$lookup_value = PHPExcel_Calculation_Functions::flattenSingleValue($lookup_value);
493
		$match_type	= (is_null($match_type)) ? 1 : (int) PHPExcel_Calculation_Functions::flattenSingleValue($match_type);
494
		//	MATCH is not case sensitive
495
		$lookup_value = strtolower($lookup_value);
496
 
497
		//	lookup_value type has to be number, text, or logical values
498
		if ((!is_numeric($lookup_value)) && (!is_string($lookup_value)) && (!is_bool($lookup_value))) {
499
			return PHPExcel_Calculation_Functions::NA();
500
		}
501
 
502
		//	match_type is 0, 1 or -1
503
		if (($match_type !== 0) && ($match_type !== -1) && ($match_type !== 1)) {
504
			return PHPExcel_Calculation_Functions::NA();
505
		}
506
 
507
		//	lookup_array should not be empty
508
		$lookupArraySize = count($lookup_array);
509
		if ($lookupArraySize <= 0) {
510
			return PHPExcel_Calculation_Functions::NA();
511
		}
512
 
513
		//	lookup_array should contain only number, text, or logical values, or empty (null) cells
514
		foreach($lookup_array as $i => $lookupArrayValue) {
515
			//	check the type of the value
516
			if ((!is_numeric($lookupArrayValue)) && (!is_string($lookupArrayValue)) &&
517
				(!is_bool($lookupArrayValue)) && (!is_null($lookupArrayValue))) {
518
				return PHPExcel_Calculation_Functions::NA();
519
			}
520
			//	convert strings to lowercase for case-insensitive testing
521
			if (is_string($lookupArrayValue)) {
522
				$lookup_array[$i] = strtolower($lookupArrayValue);
523
			}
524
			if ((is_null($lookupArrayValue)) && (($match_type == 1) || ($match_type == -1))) {
525
				$lookup_array = array_slice($lookup_array,0,$i-1);
526
			}
527
		}
528
 
529
		// if match_type is 1 or -1, the list has to be ordered
530
		if ($match_type == 1) {
531
			asort($lookup_array);
532
			$keySet = array_keys($lookup_array);
533
		} elseif($match_type == -1) {
534
			arsort($lookup_array);
535
			$keySet = array_keys($lookup_array);
536
		}
537
 
538
		// **
539
		// find the match
540
		// **
541
		// loop on the cells
542
//		var_dump($lookup_array);
543
//		echo '<br />';
544
		foreach($lookup_array as $i => $lookupArrayValue) {
545
			if (($match_type == 0) && ($lookupArrayValue == $lookup_value)) {
546
				//	exact match
547
				return ++$i;
548
			} elseif (($match_type == -1) && ($lookupArrayValue <= $lookup_value)) {
549
//				echo '$i = '.$i.' => ';
550
//				var_dump($lookupArrayValue);
551
//				echo '<br />';
552
//				echo 'Keyset = ';
553
//				var_dump($keySet);
554
//				echo '<br />';
555
				$i = array_search($i,$keySet);
556
//				echo '$i='.$i.'<br />';
557
				// if match_type is -1 <=> find the smallest value that is greater than or equal to lookup_value
558
				if ($i < 1){
559
					// 1st cell was allready smaller than the lookup_value
560
					break;
561
				} else {
562
					// the previous cell was the match
563
					return $keySet[$i-1]+1;
564
				}
565
			} elseif (($match_type == 1) && ($lookupArrayValue >= $lookup_value)) {
566
//				echo '$i = '.$i.' => ';
567
//				var_dump($lookupArrayValue);
568
//				echo '<br />';
569
//				echo 'Keyset = ';
570
//				var_dump($keySet);
571
//				echo '<br />';
572
				$i = array_search($i,$keySet);
573
//				echo '$i='.$i.'<br />';
574
				// if match_type is 1 <=> find the largest value that is less than or equal to lookup_value
575
				if ($i < 1){
576
					// 1st cell was allready bigger than the lookup_value
577
					break;
578
				} else {
579
					// the previous cell was the match
580
					return $keySet[$i-1]+1;
581
				}
582
			}
583
		}
584
 
585
		//	unsuccessful in finding a match, return #N/A error value
586
		return PHPExcel_Calculation_Functions::NA();
587
	}	//	function MATCH()
588
 
589
 
590
	/**
591
	 * INDEX
592
	 *
593
	 * Uses an index to choose a value from a reference or array
594
	 *
595
	 * Excel Function:
596
	 *		=INDEX(range_array, row_num, [column_num])
597
	 *
598
	 * @param	range_array		A range of cells or an array constant
599
	 * @param	row_num			The row in array from which to return a value. If row_num is omitted, column_num is required.
600
	 * @param	column_num		The column in array from which to return a value. If column_num is omitted, row_num is required.
601
	 * @return	mixed			the value of a specified cell or array of cells
602
	 */
603
	public static function INDEX($arrayValues,$rowNum = 0,$columnNum = 0) {
604
 
605
		if (($rowNum < 0) || ($columnNum < 0)) {
606
			return PHPExcel_Calculation_Functions::VALUE();
607
		}
608
 
609
		if (!is_array($arrayValues)) {
610
			return PHPExcel_Calculation_Functions::REF();
611
		}
612
 
613
		$rowKeys = array_keys($arrayValues);
614
		$columnKeys = @array_keys($arrayValues[$rowKeys[0]]);
615
 
616
		if ($columnNum > count($columnKeys)) {
617
			return PHPExcel_Calculation_Functions::VALUE();
618
		} elseif ($columnNum == 0) {
619
			if ($rowNum == 0) {
620
				return $arrayValues;
621
			}
622
			$rowNum = $rowKeys[--$rowNum];
623
			$returnArray = array();
624
			foreach($arrayValues as $arrayColumn) {
625
				if (is_array($arrayColumn)) {
626
					if (isset($arrayColumn[$rowNum])) {
627
						$returnArray[] = $arrayColumn[$rowNum];
628
					} else {
629
						return $arrayValues[$rowNum];
630
					}
631
				} else {
632
					return $arrayValues[$rowNum];
633
				}
634
			}
635
			return $returnArray;
636
		}
637
		$columnNum = $columnKeys[--$columnNum];
638
		if ($rowNum > count($rowKeys)) {
639
			return PHPExcel_Calculation_Functions::VALUE();
640
		} elseif ($rowNum == 0) {
641
			return $arrayValues[$columnNum];
642
		}
643
		$rowNum = $rowKeys[--$rowNum];
644
 
645
		return $arrayValues[$rowNum][$columnNum];
646
	}	//	function INDEX()
647
 
648
 
649
	/**
650
	 * TRANSPOSE
651
	 *
652
	 * @param	array	$matrixData	A matrix of values
653
	 * @return	array
654
	 *
655
	 * Unlike the Excel TRANSPOSE function, which will only work on a single row or column, this function will transpose a full matrix.
656
	 */
657
	public static function TRANSPOSE($matrixData) {
658
		$returnMatrix = array();
659
		if (!is_array($matrixData)) { $matrixData = array(array($matrixData)); }
660
 
661
		$column = 0;
662
		foreach($matrixData as $matrixRow) {
663
			$row = 0;
664
			foreach($matrixRow as $matrixCell) {
665
				$returnMatrix[$row][$column] = $matrixCell;
666
				++$row;
667
			}
668
			++$column;
669
		}
670
		return $returnMatrix;
671
	}	//	function TRANSPOSE()
672
 
673
 
674
	private static function _vlookupSort($a,$b) {
675
		$f = array_keys($a);
676
		$firstColumn = array_shift($f);
677
		if (strtolower($a[$firstColumn]) == strtolower($b[$firstColumn])) {
678
			return 0;
679
		}
680
		return (strtolower($a[$firstColumn]) < strtolower($b[$firstColumn])) ? -1 : 1;
681
	}	//	function _vlookupSort()
682
 
683
 
684
	/**
685
	* VLOOKUP
686
	* The VLOOKUP function searches for value in the left-most column of lookup_array and returns the value in the same row based on the index_number.
687
	* @param	lookup_value	The value that you want to match in lookup_array
688
	* @param	lookup_array	The range of cells being searched
689
	* @param	index_number	The column number in table_array from which the matching value must be returned. The first column is 1.
690
	* @param	not_exact_match	Determines if you are looking for an exact match based on lookup_value.
691
	* @return	mixed			The value of the found cell
692
	*/
693
	public static function VLOOKUP($lookup_value, $lookup_array, $index_number, $not_exact_match=true) {
694
		$lookup_value	= PHPExcel_Calculation_Functions::flattenSingleValue($lookup_value);
695
		$index_number	= PHPExcel_Calculation_Functions::flattenSingleValue($index_number);
696
		$not_exact_match	= PHPExcel_Calculation_Functions::flattenSingleValue($not_exact_match);
697
 
698
		// index_number must be greater than or equal to 1
699
		if ($index_number < 1) {
700
			return PHPExcel_Calculation_Functions::VALUE();
701
		}
702
 
703
		// index_number must be less than or equal to the number of columns in lookup_array
704
		if ((!is_array($lookup_array)) || (empty($lookup_array))) {
705
			return PHPExcel_Calculation_Functions::REF();
706
		} else {
707
			$f = array_keys($lookup_array);
708
			$firstRow = array_pop($f);
709
			if ((!is_array($lookup_array[$firstRow])) || ($index_number > count($lookup_array[$firstRow]))) {
710
				return PHPExcel_Calculation_Functions::REF();
711
			} else {
712
				$columnKeys = array_keys($lookup_array[$firstRow]);
713
				$returnColumn = $columnKeys[--$index_number];
714
				$firstColumn = array_shift($columnKeys);
715
			}
716
		}
717
 
718
		if (!$not_exact_match) {
719
			uasort($lookup_array,array('self','_vlookupSort'));
720
		}
721
 
722
		$rowNumber = $rowValue = False;
723
		foreach($lookup_array as $rowKey => $rowData) {
724
			if (strtolower($rowData[$firstColumn]) > strtolower($lookup_value)) {
725
				break;
726
			}
727
			$rowNumber = $rowKey;
728
			$rowValue = $rowData[$firstColumn];
729
		}
730
 
731
		if ($rowNumber !== false) {
732
			if ((!$not_exact_match) && ($rowValue != $lookup_value)) {
733
				//	if an exact match is required, we have what we need to return an appropriate response
734
				return PHPExcel_Calculation_Functions::NA();
735
			} else {
736
				//	otherwise return the appropriate value
737
				return $lookup_array[$rowNumber][$returnColumn];
738
			}
739
		}
740
 
741
		return PHPExcel_Calculation_Functions::NA();
742
	}	//	function VLOOKUP()
743
 
744
 
745
	/**
746
	 * LOOKUP
747
	 * The LOOKUP function searches for value either from a one-row or one-column range or from an array.
748
	 * @param	lookup_value	The value that you want to match in lookup_array
749
	 * @param	lookup_vector	The range of cells being searched
750
	 * @param	result_vector	The column from which the matching value must be returned
751
	 * @return	mixed			The value of the found cell
752
	 */
753
	public static function LOOKUP($lookup_value, $lookup_vector, $result_vector=null) {
754
		$lookup_value	= PHPExcel_Calculation_Functions::flattenSingleValue($lookup_value);
755
 
756
		if (!is_array($lookup_vector)) {
757
			return PHPExcel_Calculation_Functions::NA();
758
		}
759
		$lookupRows = count($lookup_vector);
760
		$l = array_keys($lookup_vector);
761
		$l = array_shift($l);
762
		$lookupColumns = count($lookup_vector[$l]);
763
		if ((($lookupRows == 1) && ($lookupColumns > 1)) || (($lookupRows == 2) && ($lookupColumns != 2))) {
764
			$lookup_vector = self::TRANSPOSE($lookup_vector);
765
			$lookupRows = count($lookup_vector);
766
			$l = array_keys($lookup_vector);
767
			$lookupColumns = count($lookup_vector[array_shift($l)]);
768
		}
769
 
770
		if (is_null($result_vector)) {
771
			$result_vector = $lookup_vector;
772
		}
773
		$resultRows = count($result_vector);
774
		$l = array_keys($result_vector);
775
		$l = array_shift($l);
776
		$resultColumns = count($result_vector[$l]);
777
		if ((($resultRows == 1) && ($resultColumns > 1)) || (($resultRows == 2) && ($resultColumns != 2))) {
778
			$result_vector = self::TRANSPOSE($result_vector);
779
			$resultRows = count($result_vector);
780
			$r = array_keys($result_vector);
781
			$resultColumns = count($result_vector[array_shift($r)]);
782
		}
783
 
784
		if ($lookupRows == 2) {
785
			$result_vector = array_pop($lookup_vector);
786
			$lookup_vector = array_shift($lookup_vector);
787
		}
788
		if ($lookupColumns != 2) {
789
			foreach($lookup_vector as &$value) {
790
				if (is_array($value)) {
791
					$k = array_keys($value);
792
					$key1 = $key2 = array_shift($k);
793
					$key2++;
794
					$dataValue1 = $value[$key1];
795
				} else {
796
					$key1 = 0;
797
					$key2 = 1;
798
					$dataValue1 = $value;
799
				}
800
				$dataValue2 = array_shift($result_vector);
801
				if (is_array($dataValue2)) {
802
					$dataValue2 = array_shift($dataValue2);
803
				}
804
				$value = array($key1 => $dataValue1, $key2 => $dataValue2);
805
			}
806
			unset($value);
807
		}
808
 
809
		return self::VLOOKUP($lookup_value,$lookup_vector,2);
810
 	}	//	function LOOKUP()
811
 
812
}	//	class PHPExcel_Calculation_LookupRef