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Code Examples / Notes » strnatcmp

thomas

There seems to be a bug in the localization for strnatcmp and strnatcasecmp. I searched the reported bugs and found a few entries which were up to four years old (but the problem still exists when using swedish characters). These functions might work instead. <?php function _strnatcasecmp($left, $right) { return _strnatcmp(strtolower($left), strtolower($right)); } function _strnatcmp($left, $right) { while((strlen($left) > 0) && (strlen($right) > 0)) { if(preg_match('/^([^0-9]*)([0-9].*)$/Us', $left, $lMatch)) { $lTest = $lMatch[1]; $left = $lMatch[2]; } else { $lTest = $left; $left = ''; } if(preg_match('/^([^0-9]*)([0-9].*)$/Us', $right, $rMatch)) { $rTest = $rMatch[1]; $right = $rMatch[2]; } else { $rTest = $right; $right = ''; } $test = strcmp($lTest, $rTest); if($test != 0) { return $test; } if(preg_match('/^([0-9]+)([^0-9].*)?$/Us', $left, $lMatch)) { $lTest = intval($lMatch[1]); $left = $lMatch[2]; } else { $lTest = 0; } if(preg_match('/^([0-9]+)([^0-9].*)?$/Us', $right, $rMatch)) { $rTest = intval($rMatch[1]); $right = $rMatch[2]; } else { $rTest = 0; } $test = $lTest - $rTest; if($test != 0) { return $test; } } return strcmp($left, $right); } ?> The code is not optimized. It was just made to solve my problem.

public

The URI of Martin Pool's page is http://sourcefrog.net/projects/natsort/ (Yes, that's frog, not forge). http://www.naturalordersort.org/ points to a page with the same idea, by Stuart Cheshire, who wrote a small Mac extension to do natural sorting.

strnatcmp

String comparisons using a "natural order" algorithm (PHP 4, PHP 5)
int strnatcmp ( string str1, string str2 )

Code Examples / Notes » strnatcmp

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strnatcmp

String comparisons using a "natural order" algorithm (PHP 4, PHP 5) int strnatcmp ( string str1, string str2 )

Code Examples / Notes » strnatcmp

Change Language

String comparisons using a "natural order" algorithm (PHP 4, PHP 5)
int strnatcmp ( string str1, string str2 )