note 109893 added to function.array-map
| From: | djafferian at sos dot ri dot gov | Date: | Fri, 31 Aug 2012 15:00:28 +0000 |
| Subject: | note 109893 added to function.array-map | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-190305@lists.php.net to get a copy of this message | ||
Regarding the two dimensional matrix transpose provided by radist-hack at yandex dot ru 01-Nov-2008
07:37, a complete solution which handles special cases not properly handled by array_map can be
found here :
http://rosettacode.org/wiki/Matrix_transposition#PHP
<?php
function transpose($matrix) {
// special case: empty matrix
if (count($matrix) == 0) { return array(); }
// special case: one row matrix
if (count($matrix) == 1) { return array_chunk($matrix[0], 1); }
// general case: two or more rows
array_unshift($matrix, null);
return call_user_func_array('array_map', $matrix);
}
?>
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Server IP: 192.41.42.26
Probable Submitter: 198.7.225.122
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Manual Page -- http://www.php.net/manual/en/function.array-map.php
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