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<?php
namespace PhpOffice\PhpSpreadsheet\Calculation;
use PhpOffice\PhpSpreadsheet\Cell\Cell;
use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
class LookupRef
{
/**
* CELL_ADDRESS.
*
* Creates a cell address as text, given specified row and column numbers.
*
* Excel Function:
* =ADDRESS(row, column, [relativity], [referenceStyle], [sheetText])
*
* @param mixed $row Row number to use in the cell reference
* @param mixed $column Column number to use in the cell reference
* @param int $relativity Flag indicating the type of reference to return
* 1 or omitted Absolute
* 2 Absolute row; relative column
* 3 Relative row; absolute column
* 4 Relative
* @param bool $referenceStyle A logical value that specifies the A1 or R1C1 reference style.
* TRUE or omitted CELL_ADDRESS returns an A1-style reference
* FALSE CELL_ADDRESS returns an R1C1-style reference
* @param string $sheetText Optional Name of worksheet to use
*
* @return string
*/
public static function cellAddress($row, $column, $relativity = 1, $referenceStyle = true, $sheetText = '')
{
$row = Functions::flattenSingleValue($row);
$column = Functions::flattenSingleValue($column);
$relativity = Functions::flattenSingleValue($relativity);
$sheetText = Functions::flattenSingleValue($sheetText);
if (($row < 1) || ($column < 1)) {
return Functions::VALUE();
}
if ($sheetText > '') {
if (strpos($sheetText, ' ') !== false) {
$sheetText = "'" . $sheetText . "'";
}
$sheetText .= '!';
}
if ((!is_bool($referenceStyle)) || $referenceStyle) {
$rowRelative = $columnRelative = '$';
$column = Coordinate::stringFromColumnIndex($column);
if (($relativity == 2) || ($relativity == 4)) {
$columnRelative = '';
}
if (($relativity == 3) || ($relativity == 4)) {
$rowRelative = '';
}
return $sheetText . $columnRelative . $column . $rowRelative . $row;
}
if (($relativity == 2) || ($relativity == 4)) {
$column = '[' . $column . ']';
}
if (($relativity == 3) || ($relativity == 4)) {
$row = '[' . $row . ']';
}
return $sheetText . 'R' . $row . 'C' . $column;
}
/**
* COLUMN.
*
* Returns the column number of the given cell reference
* If the cell reference is a range of cells, COLUMN returns the column numbers of each column in the reference as a horizontal array.
* If cell reference is omitted, and the function is being called through the calculation engine, then it is assumed to be the
* reference of the cell in which the COLUMN function appears; otherwise this function returns 0.
*
* Excel Function:
* =COLUMN([cellAddress])
*
* @param null|array|string $cellAddress A reference to a range of cells for which you want the column numbers
*
* @return int|int[]
*/
public static function COLUMN($cellAddress = null)
{
if ($cellAddress === null || trim($cellAddress) === '') {
return 0;
}
if (is_array($cellAddress)) {
foreach ($cellAddress as $columnKey => $value) {
$columnKey = preg_replace('/[^a-z]/i', '', $columnKey);
return (int) Coordinate::columnIndexFromString($columnKey);
}
} else {
list($sheet, $cellAddress) = Worksheet::extractSheetTitle($cellAddress, true);
if (strpos($cellAddress, ':') !== false) {
list($startAddress, $endAddress) = explode(':', $cellAddress);
$startAddress = preg_replace('/[^a-z]/i', '', $startAddress);
$endAddress = preg_replace('/[^a-z]/i', '', $endAddress);
$returnValue = [];
do {
$returnValue[] = (int) Coordinate::columnIndexFromString($startAddress);
} while ($startAddress++ != $endAddress);
return $returnValue;
}
$cellAddress = preg_replace('/[^a-z]/i', '', $cellAddress);
return (int) Coordinate::columnIndexFromString($cellAddress);
}
}
/**
* COLUMNS.
*
* Returns the number of columns in an array or reference.
*
* Excel Function:
* =COLUMNS(cellAddress)
*
* @param null|array|string $cellAddress An array or array formula, or a reference to a range of cells for which you want the number of columns
*
* @return int The number of columns in cellAddress
*/
public static function COLUMNS($cellAddress = null)
{
if ($cellAddress === null || $cellAddress === '') {
return 1;
} elseif (!is_array($cellAddress)) {
return Functions::VALUE();
}
reset($cellAddress);
$isMatrix = (is_numeric(key($cellAddress)));
list($columns, $rows) = Calculation::getMatrixDimensions($cellAddress);
if ($isMatrix) {
return $rows;
}
return $columns;
}
/**
* ROW.
*
* Returns the row number of the given cell reference
* If the cell reference is a range of cells, ROW returns the row numbers of each row in the reference as a vertical array.
* If cell reference is omitted, and the function is being called through the calculation engine, then it is assumed to be the
* reference of the cell in which the ROW function appears; otherwise this function returns 0.
*
* Excel Function:
* =ROW([cellAddress])
*
* @param null|array|string $cellAddress A reference to a range of cells for which you want the row numbers
*
* @return int or array of integer
*/
public static function ROW($cellAddress = null)
{
if ($cellAddress === null || trim($cellAddress) === '') {
return 0;
}
if (is_array($cellAddress)) {
foreach ($cellAddress as $columnKey => $rowValue) {
foreach ($rowValue as $rowKey => $cellValue) {
return (int) preg_replace('/\D/', '', $rowKey);
}
}
} else {
list($sheet, $cellAddress) = Worksheet::extractSheetTitle($cellAddress, true);
if (strpos($cellAddress, ':') !== false) {
list($startAddress, $endAddress) = explode(':', $cellAddress);
$startAddress = preg_replace('/\D/', '', $startAddress);
$endAddress = preg_replace('/\D/', '', $endAddress);
$returnValue = [];
do {
$returnValue[][] = (int) $startAddress;
} while ($startAddress++ != $endAddress);
return $returnValue;
}
list($cellAddress) = explode(':', $cellAddress);
return (int) preg_replace('/\D/', '', $cellAddress);
}
}
/**
* ROWS.
*
* Returns the number of rows in an array or reference.
*
* Excel Function:
* =ROWS(cellAddress)
*
* @param null|array|string $cellAddress An array or array formula, or a reference to a range of cells for which you want the number of rows
*
* @return int The number of rows in cellAddress
*/
public static function ROWS($cellAddress = null)
{
if ($cellAddress === null || $cellAddress === '') {
return 1;
} elseif (!is_array($cellAddress)) {
return Functions::VALUE();
}
reset($cellAddress);
$isMatrix = (is_numeric(key($cellAddress)));
list($columns, $rows) = Calculation::getMatrixDimensions($cellAddress);
if ($isMatrix) {
return $columns;
}
return $rows;
}
/**
* HYPERLINK.
*
* Excel Function:
* =HYPERLINK(linkURL,displayName)
*
* @category Logical Functions
*
* @param string $linkURL Value to check, is also the value returned when no error
* @param string $displayName Value to return when testValue is an error condition
* @param Cell $pCell The cell to set the hyperlink in
*
* @return mixed The value of $displayName (or $linkURL if $displayName was blank)
*/
public static function HYPERLINK($linkURL = '', $displayName = null, Cell $pCell = null)
{
$linkURL = ($linkURL === null) ? '' : Functions::flattenSingleValue($linkURL);
$displayName = ($displayName === null) ? '' : Functions::flattenSingleValue($displayName);
if ((!is_object($pCell)) || (trim($linkURL) == '')) {
return Functions::REF();
}
if ((is_object($displayName)) || trim($displayName) == '') {
$displayName = $linkURL;
}
$pCell->getHyperlink()->setUrl($linkURL);
$pCell->getHyperlink()->setTooltip($displayName);
return $displayName;
}
/**
* INDIRECT.
*
* Returns the reference specified by a text string.
* References are immediately evaluated to display their contents.
*
* Excel Function:
* =INDIRECT(cellAddress)
*
* NOTE - INDIRECT() does not yet support the optional a1 parameter introduced in Excel 2010
*
* @param null|array|string $cellAddress $cellAddress The cell address of the current cell (containing this formula)
* @param Cell $pCell The current cell (containing this formula)
*
* @return mixed The cells referenced by cellAddress
*
* @todo Support for the optional a1 parameter introduced in Excel 2010
*/
public static function INDIRECT($cellAddress = null, Cell $pCell = null)
{
$cellAddress = Functions::flattenSingleValue($cellAddress);
if ($cellAddress === null || $cellAddress === '') {
return Functions::REF();
}
$cellAddress1 = $cellAddress;
$cellAddress2 = null;
if (strpos($cellAddress, ':') !== false) {
list($cellAddress1, $cellAddress2) = explode(':', $cellAddress);
}
if ((!preg_match('/^' . Calculation::CALCULATION_REGEXP_CELLREF . '$/i', $cellAddress1, $matches)) ||
(($cellAddress2 !== null) && (!preg_match('/^' . Calculation::CALCULATION_REGEXP_CELLREF . '$/i', $cellAddress2, $matches)))) {
if (!preg_match('/^' . Calculation::CALCULATION_REGEXP_NAMEDRANGE . '$/i', $cellAddress1, $matches)) {
return Functions::REF();
}
if (strpos($cellAddress, '!') !== false) {
list($sheetName, $cellAddress) = Worksheet::extractSheetTitle($cellAddress, true);
$sheetName = trim($sheetName, "'");
$pSheet = $pCell->getWorksheet()->getParent()->getSheetByName($sheetName);
} else {
$pSheet = $pCell->getWorksheet();
}
return Calculation::getInstance()->extractNamedRange($cellAddress, $pSheet, false);
}
if (strpos($cellAddress, '!') !== false) {
list($sheetName, $cellAddress) = Worksheet::extractSheetTitle($cellAddress, true);
$sheetName = trim($sheetName, "'");
$pSheet = $pCell->getWorksheet()->getParent()->getSheetByName($sheetName);
} else {
$pSheet = $pCell->getWorksheet();
}
return Calculation::getInstance()->extractCellRange($cellAddress, $pSheet, false);
}
/**
* OFFSET.
*
* Returns a reference to a range that is a specified number of rows and columns from a cell or range of cells.
* The reference that is returned can be a single cell or a range of cells. You can specify the number of rows and
* the number of columns to be returned.
*
* Excel Function:
* =OFFSET(cellAddress, rows, cols, [height], [width])
*
* @param null|string $cellAddress The reference from which you want to base the offset. Reference must refer to a cell or
* range of adjacent cells; otherwise, OFFSET returns the #VALUE! error value.
* @param mixed $rows The number of rows, up or down, that you want the upper-left cell to refer to.
* Using 5 as the rows argument specifies that the upper-left cell in the reference is
* five rows below reference. Rows can be positive (which means below the starting reference)
* or negative (which means above the starting reference).
* @param mixed $columns The number of columns, to the left or right, that you want the upper-left cell of the result
* to refer to. Using 5 as the cols argument specifies that the upper-left cell in the
* reference is five columns to the right of reference. Cols can be positive (which means
* to the right of the starting reference) or negative (which means to the left of the
* starting reference).
* @param mixed $height The height, in number of rows, that you want the returned reference to be. Height must be a positive number.
* @param mixed $width The width, in number of columns, that you want the returned reference to be. Width must be a positive number.
* @param null|Cell $pCell
*
* @return string A reference to a cell or range of cells
*/
public static function OFFSET($cellAddress = null, $rows = 0, $columns = 0, $height = null, $width = null, Cell $pCell = null)
{
$rows = Functions::flattenSingleValue($rows);
$columns = Functions::flattenSingleValue($columns);
$height = Functions::flattenSingleValue($height);
$width = Functions::flattenSingleValue($width);
if ($cellAddress === null) {
return 0;
}
if (!is_object($pCell)) {
return Functions::REF();
}
$sheetName = null;
if (strpos($cellAddress, '!')) {
list($sheetName, $cellAddress) = Worksheet::extractSheetTitle($cellAddress, true);
$sheetName = trim($sheetName, "'");
}
if (strpos($cellAddress, ':')) {
list($startCell, $endCell) = explode(':', $cellAddress);
} else {
$startCell = $endCell = $cellAddress;
}
list($startCellColumn, $startCellRow) = Coordinate::coordinateFromString($startCell);
list($endCellColumn, $endCellRow) = Coordinate::coordinateFromString($endCell);
$startCellRow += $rows;
$startCellColumn = Coordinate::columnIndexFromString($startCellColumn) - 1;
$startCellColumn += $columns;
if (($startCellRow <= 0) || ($startCellColumn < 0)) {
return Functions::REF();
}
$endCellColumn = Coordinate::columnIndexFromString($endCellColumn) - 1;
if (($width != null) && (!is_object($width))) {
$endCellColumn = $startCellColumn + $width - 1;
} else {
$endCellColumn += $columns;
}
$startCellColumn = Coordinate::stringFromColumnIndex($startCellColumn + 1);
if (($height != null) && (!is_object($height))) {
$endCellRow = $startCellRow + $height - 1;
} else {
$endCellRow += $rows;
}
if (($endCellRow <= 0) || ($endCellColumn < 0)) {
return Functions::REF();
}
$endCellColumn = Coordinate::stringFromColumnIndex($endCellColumn + 1);
$cellAddress = $startCellColumn . $startCellRow;
if (($startCellColumn != $endCellColumn) || ($startCellRow != $endCellRow)) {
$cellAddress .= ':' . $endCellColumn . $endCellRow;
}
if ($sheetName !== null) {
$pSheet = $pCell->getWorksheet()->getParent()->getSheetByName($sheetName);
} else {
$pSheet = $pCell->getWorksheet();
}
return Calculation::getInstance()->extractCellRange($cellAddress, $pSheet, false);
}
/**
* CHOOSE.
*
* Uses lookup_value to return a value from the list of value arguments.
* Use CHOOSE to select one of up to 254 values based on the lookup_value.
*
* Excel Function:
* =CHOOSE(index_num, value1, [value2], ...)
*
* @param mixed $index_num Specifies which value argument is selected.
* Index_num must be a number between 1 and 254, or a formula or reference to a cell containing a number
* between 1 and 254.
* @param mixed $value1 ... Value1 is required, subsequent values are optional.
* Between 1 to 254 value arguments from which CHOOSE selects a value or an action to perform based on
* index_num. The arguments can be numbers, cell references, defined names, formulas, functions, or
* text.
*
* @return mixed The selected value
*/
public static function CHOOSE(...$chooseArgs)
{
$chosenEntry = Functions::flattenArray(array_shift($chooseArgs));
$entryCount = count($chooseArgs) - 1;
if (is_array($chosenEntry)) {
$chosenEntry = array_shift($chosenEntry);
}
if ((is_numeric($chosenEntry)) && (!is_bool($chosenEntry))) {
--$chosenEntry;
} else {
return Functions::VALUE();
}
$chosenEntry = floor($chosenEntry);
if (($chosenEntry < 0) || ($chosenEntry > $entryCount)) {
return Functions::VALUE();
}
if (is_array($chooseArgs[$chosenEntry])) {
return Functions::flattenArray($chooseArgs[$chosenEntry]);
}
return $chooseArgs[$chosenEntry];
}
/**
* MATCH.
*
* The MATCH function searches for a specified item in a range of cells
*
* Excel Function:
* =MATCH(lookup_value, lookup_array, [match_type])
*
* @param mixed $lookupValue The value that you want to match in lookup_array
* @param mixed $lookupArray The range of cells being searched
* @param mixed $matchType The number -1, 0, or 1. -1 means above, 0 means exact match, 1 means below. If match_type is 1 or -1, the list has to be ordered.
*
* @return int The relative position of the found item
*/
public static function MATCH($lookupValue, $lookupArray, $matchType = 1)
{
$lookupArray = Functions::flattenArray($lookupArray);
$lookupValue = Functions::flattenSingleValue($lookupValue);
$matchType = ($matchType === null) ? 1 : (int) Functions::flattenSingleValue($matchType);
// MATCH is not case sensitive
$lookupValue = strtolower($lookupValue);
// Lookup_value type has to be number, text, or logical values
if ((!is_numeric($lookupValue)) && (!is_string($lookupValue)) && (!is_bool($lookupValue))) {
return Functions::NA();
}
// Match_type is 0, 1 or -1
if (($matchType !== 0) && ($matchType !== -1) && ($matchType !== 1)) {
return Functions::NA();
}
// Lookup_array should not be empty
$lookupArraySize = count($lookupArray);
if ($lookupArraySize <= 0) {
return Functions::NA();
}
// Lookup_array should contain only number, text, or logical values, or empty (null) cells
foreach ($lookupArray as $i => $lookupArrayValue) {
// check the type of the value
if ((!is_numeric($lookupArrayValue)) && (!is_string($lookupArrayValue)) &&
(!is_bool($lookupArrayValue)) && ($lookupArrayValue !== null)
) {
return Functions::NA();
}
// Convert strings to lowercase for case-insensitive testing
if (is_string($lookupArrayValue)) {
$lookupArray[$i] = strtolower($lookupArrayValue);
}
if (($lookupArrayValue === null) && (($matchType == 1) || ($matchType == -1))) {
$lookupArray = array_slice($lookupArray, 0, $i - 1);
}
}
if ($matchType == 1) {
// If match_type is 1 the list has to be processed from last to first
$lookupArray = array_reverse($lookupArray);
$keySet = array_reverse(array_keys($lookupArray));
}
// **
// find the match
// **
if ($matchType == 0 || $matchType == 1) {
foreach ($lookupArray as $i => $lookupArrayValue) {
if (($matchType == 0) && ($lookupArrayValue == $lookupValue)) {
// exact match
return ++$i;
} elseif (($matchType == 1) && ($lookupArrayValue <= $lookupValue)) {
$i = array_search($i, $keySet);
// The current value is the (first) match
return $i + 1;
}
}
} else {
// matchType = -1
// "Special" case: since the array it's supposed to be ordered in descending order, the
// Excel algorithm gives up immediately if the first element is smaller than the searched value
if ($lookupArray[0] < $lookupValue) {
return Functions::NA();
}
$maxValueKey = null;
// The basic algorithm is:
// Iterate and keep the highest match until the next element is smaller than the searched value.
// Return immediately if perfect match is found
foreach ($lookupArray as $i => $lookupArrayValue) {
if ($lookupArrayValue == $lookupValue) {
// Another "special" case. If a perfect match is found,
// the algorithm gives up immediately
return $i + 1;
} elseif ($lookupArrayValue >= $lookupValue) {
$maxValueKey = $i + 1;
}
}
if ($maxValueKey !== null) {
return $maxValueKey;
}
}
// Unsuccessful in finding a match, return #N/A error value
return Functions::NA();
}
/**
* INDEX.
*
* Uses an index to choose a value from a reference or array
*
* Excel Function:
* =INDEX(range_array, row_num, [column_num])
*
* @param mixed $arrayValues A range of cells or an array constant
* @param mixed $rowNum The row in array from which to return a value. If row_num is omitted, column_num is required.
* @param mixed $columnNum The column in array from which to return a value. If column_num is omitted, row_num is required.
*
* @return mixed the value of a specified cell or array of cells
*/
public static function INDEX($arrayValues, $rowNum = 0, $columnNum = 0)
{
$rowNum = Functions::flattenSingleValue($rowNum);
$columnNum = Functions::flattenSingleValue($columnNum);
if (($rowNum < 0) || ($columnNum < 0)) {
return Functions::VALUE();
}
if (!is_array($arrayValues) || ($rowNum > count($arrayValues))) {
return Functions::REF();
}
$rowKeys = array_keys($arrayValues);
$columnKeys = @array_keys($arrayValues[$rowKeys[0]]);
if ($columnNum > count($columnKeys)) {
return Functions::VALUE();
} elseif ($columnNum == 0) {
if ($rowNum == 0) {
return $arrayValues;
}
$rowNum = $rowKeys[--$rowNum];
$returnArray = [];
foreach ($arrayValues as $arrayColumn) {
if (is_array($arrayColumn)) {
if (isset($arrayColumn[$rowNum])) {
$returnArray[] = $arrayColumn[$rowNum];
} else {
return [$rowNum => $arrayValues[$rowNum]];
}
} else {
return $arrayValues[$rowNum];
}
}
return $returnArray;
}
$columnNum = $columnKeys[--$columnNum];
if ($rowNum > count($rowKeys)) {
return Functions::VALUE();
} elseif ($rowNum == 0) {
return $arrayValues[$columnNum];
}
$rowNum = $rowKeys[--$rowNum];
return $arrayValues[$rowNum][$columnNum];
}
/**
* TRANSPOSE.
*
* @param array $matrixData A matrix of values
*
* @return array
*
* Unlike the Excel TRANSPOSE function, which will only work on a single row or column, this function will transpose a full matrix
*/
public static function TRANSPOSE($matrixData)
{
$returnMatrix = [];
if (!is_array($matrixData)) {
$matrixData = [[$matrixData]];
}
$column = 0;
foreach ($matrixData as $matrixRow) {
$row = 0;
foreach ($matrixRow as $matrixCell) {
$returnMatrix[$row][$column] = $matrixCell;
++$row;
}
++$column;
}
return $returnMatrix;
}
private static function vlookupSort($a, $b)
{
reset($a);
$firstColumn = key($a);
if (($aLower = strtolower($a[$firstColumn])) == ($bLower = strtolower($b[$firstColumn]))) {
return 0;
}
return ($aLower < $bLower) ? -1 : 1;
}
/**
* VLOOKUP
* 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.
*
* @param mixed $lookup_value The value that you want to match in lookup_array
* @param mixed $lookup_array The range of cells being searched
* @param mixed $index_number The column number in table_array from which the matching value must be returned. The first column is 1.
* @param mixed $not_exact_match determines if you are looking for an exact match based on lookup_value
*
* @return mixed The value of the found cell
*/
public static function VLOOKUP($lookup_value, $lookup_array, $index_number, $not_exact_match = true)
{
$lookup_value = Functions::flattenSingleValue($lookup_value);
$index_number = Functions::flattenSingleValue($index_number);
$not_exact_match = Functions::flattenSingleValue($not_exact_match);
// index_number must be greater than or equal to 1
if ($index_number < 1) {
return Functions::VALUE();
}
// index_number must be less than or equal to the number of columns in lookup_array
if ((!is_array($lookup_array)) || (empty($lookup_array))) {
return Functions::REF();
}
$f = array_keys($lookup_array);
$firstRow = array_pop($f);
if ((!is_array($lookup_array[$firstRow])) || ($index_number > count($lookup_array[$firstRow]))) {
return Functions::REF();
}
$columnKeys = array_keys($lookup_array[$firstRow]);
$returnColumn = $columnKeys[--$index_number];
$firstColumn = array_shift($columnKeys);
if (!$not_exact_match) {
uasort($lookup_array, ['self', 'vlookupSort']);
}
$rowNumber = $rowValue = false;
foreach ($lookup_array as $rowKey => $rowData) {
// break if we have passed possible keys
if ((is_numeric($lookup_value) && is_numeric($rowData[$firstColumn]) && ($rowData[$firstColumn] > $lookup_value)) ||
(!is_numeric($lookup_value) && !is_numeric($rowData[$firstColumn]) && (strtolower($rowData[$firstColumn]) > strtolower($lookup_value)))) {
break;
}
// remember the last key, but only if datatypes match
if ((is_numeric($lookup_value) && is_numeric($rowData[$firstColumn])) ||
(!is_numeric($lookup_value) && !is_numeric($rowData[$firstColumn]))) {
if ($not_exact_match) {
$rowNumber = $rowKey;
$rowValue = $rowData[$firstColumn];
continue;
} elseif ((strtolower($rowData[$firstColumn]) == strtolower($lookup_value))
// Spreadsheets software returns first exact match,
// we have sorted and we might have broken key orders
// we want the first one (by its initial index)
&& (($rowNumber == false) || ($rowKey < $rowNumber))
) {
$rowNumber = $rowKey;
$rowValue = $rowData[$firstColumn];
}
}
}
if ($rowNumber !== false) {
// return the appropriate value
return $lookup_array[$rowNumber][$returnColumn];
}
return Functions::NA();
}
/**
* HLOOKUP
* The HLOOKUP function searches for value in the top-most row of lookup_array and returns the value in the same column based on the index_number.
*
* @param mixed $lookup_value The value that you want to match in lookup_array
* @param mixed $lookup_array The range of cells being searched
* @param mixed $index_number The row number in table_array from which the matching value must be returned. The first row is 1.
* @param mixed $not_exact_match determines if you are looking for an exact match based on lookup_value
*
* @return mixed The value of the found cell
*/
public static function HLOOKUP($lookup_value, $lookup_array, $index_number, $not_exact_match = true)
{
$lookup_value = Functions::flattenSingleValue($lookup_value);
$index_number = Functions::flattenSingleValue($index_number);
$not_exact_match = Functions::flattenSingleValue($not_exact_match);
// index_number must be greater than or equal to 1
if ($index_number < 1) {
return Functions::VALUE();
}
// index_number must be less than or equal to the number of columns in lookup_array
if ((!is_array($lookup_array)) || (empty($lookup_array))) {
return Functions::REF();
}
$f = array_keys($lookup_array);
$firstRow = array_pop($f);
if ((!is_array($lookup_array[$firstRow])) || ($index_number > count($lookup_array))) {
return Functions::REF();
}
$firstkey = $f[0] - 1;
$returnColumn = $firstkey + $index_number;
$firstColumn = array_shift($f);
$rowNumber = null;
foreach ($lookup_array[$firstColumn] as $rowKey => $rowData) {
// break if we have passed possible keys
$bothNumeric = is_numeric($lookup_value) && is_numeric($rowData);
$bothNotNumeric = !is_numeric($lookup_value) && !is_numeric($rowData);
if (($bothNumeric && $rowData > $lookup_value) ||
($bothNotNumeric && strtolower($rowData) > strtolower($lookup_value))) {
break;
}
// Remember the last key, but only if datatypes match (as in VLOOKUP)
if ($bothNumeric || $bothNotNumeric) {
if ($not_exact_match) {
$rowNumber = $rowKey;
continue;
} elseif (strtolower($rowData) === strtolower($lookup_value)
&& ($rowNumber === null || $rowKey < $rowNumber)
) {
$rowNumber = $rowKey;
}
}
}
if ($rowNumber !== null) {
// otherwise return the appropriate value
return $lookup_array[$returnColumn][$rowNumber];
}
return Functions::NA();
}
/**
* LOOKUP
* The LOOKUP function searches for value either from a one-row or one-column range or from an array.
*
* @param mixed $lookup_value The value that you want to match in lookup_array
* @param mixed $lookup_vector The range of cells being searched
* @param null|mixed $result_vector The column from which the matching value must be returned
*
* @return mixed The value of the found cell
*/
public static function LOOKUP($lookup_value, $lookup_vector, $result_vector = null)
{
$lookup_value = Functions::flattenSingleValue($lookup_value);
if (!is_array($lookup_vector)) {
return Functions::NA();
}
$hasResultVector = isset($result_vector);
$lookupRows = count($lookup_vector);
$l = array_keys($lookup_vector);
$l = array_shift($l);
$lookupColumns = count($lookup_vector[$l]);
// we correctly orient our results
if (($lookupRows === 1 && $lookupColumns > 1) || (!$hasResultVector && $lookupRows === 2 && $lookupColumns !== 2)) {
$lookup_vector = self::TRANSPOSE($lookup_vector);
$lookupRows = count($lookup_vector);
$l = array_keys($lookup_vector);
$lookupColumns = count($lookup_vector[array_shift($l)]);
}
if ($result_vector === null) {
$result_vector = $lookup_vector;
}
$resultRows = count($result_vector);
$l = array_keys($result_vector);
$l = array_shift($l);
$resultColumns = count($result_vector[$l]);
// we correctly orient our results
if ($resultRows === 1 && $resultColumns > 1) {
$result_vector = self::TRANSPOSE($result_vector);
$resultRows = count($result_vector);
$r = array_keys($result_vector);
$resultColumns = count($result_vector[array_shift($r)]);
}
if ($lookupRows === 2 && !$hasResultVector) {
$result_vector = array_pop($lookup_vector);
$lookup_vector = array_shift($lookup_vector);
}
if ($lookupColumns !== 2) {
foreach ($lookup_vector as &$value) {
if (is_array($value)) {
$k = array_keys($value);
$key1 = $key2 = array_shift($k);
++$key2;
$dataValue1 = $value[$key1];
} else {
$key1 = 0;
$key2 = 1;
$dataValue1 = $value;
}
$dataValue2 = array_shift($result_vector);
if (is_array($dataValue2)) {
$dataValue2 = array_shift($dataValue2);
}
$value = [$key1 => $dataValue1, $key2 => $dataValue2];
}
unset($value);
}
return self::VLOOKUP($lookup_value, $lookup_vector, 2);
}
/**
* FORMULATEXT.
*
* @param mixed $cellReference The cell to check
* @param Cell $pCell The current cell (containing this formula)
*
* @return string
*/
public static function FORMULATEXT($cellReference = '', Cell $pCell = null)
{
if ($pCell === null) {
return Functions::REF();
}
preg_match('/^' . Calculation::CALCULATION_REGEXP_CELLREF . '$/i', $cellReference, $matches);
$cellReference = $matches[6] . $matches[7];
$worksheetName = trim($matches[3], "'");
$worksheet = (!empty($worksheetName))
? $pCell->getWorksheet()->getParent()->getSheetByName($worksheetName)
: $pCell->getWorksheet();
if (!$worksheet->getCell($cellReference)->isFormula()) {
return Functions::NA();
}
return $worksheet->getCell($cellReference)->getValue();
}
}