Req #66792 [Opn]: add callback function to preg_match

Edit report at https://bugs.php.net/bug.php?id=66792&edit=1 ID: 66792 Updated by: requinix@php.net Reported by: crayonviolent at phpfreaks dot com Summary: add callback function to preg_match Status: Open Type: Feature/Change Request Package: PCRE related PHP Version: Irrelevant Block user comment: N Private report: N New Comment: Maybe it's just the example but you can easily put that condition in your if. Besides, doesn't adding a callback make it "unnecessarily complex"? preg_match('~^(\d+)-(\d+)$~', $string, $match) && $match[1] <= $match[2] For preg_match_all() you can use PREG_SET_ORDER and array_filter(). Previous Comments: ------------------------------------------------------------------------ [2014-02-27 14:59:42] crayonviolent at phpfreaks dot com Description: ------------ Pretty straightforward.. Add callback function capability to preg_match and preg_match_all. The requirements should be to ultimately return true or false. If true then it will count as a match. If false, it will not count as a match. This solution would allow injection of arbitrary logic, and I feel this will both greatly enhance and simplify a lot of common scenarios that benefit from using regex, but are unnecessarily complex because of limitations of regex, e.g number ranges and dates. Test script: --------------- /* use case: I expect an integer range from user, and I want to make sure the 'min' number is less than or equal to the 'max' num */ $string = "45-50"; if ( preg_match('~^(\d+)-(\d+)$~', $string, $match, function($m) { return ($m[1] <= $m[2]); } ) { // valid } else { // invalid } ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=66792&edit=1