note 93560 added to function.is-int

From: Date: Wed, 16 Sep 2009 12:23:02 +0000
Subject: note 93560 added to function.is-int
Groups: php.notes 
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I was looking for the fastest way to check for an unsigned integer which supported large numbers like 4318943448871348 or 0xFFFFFFFF. Fastest I came up with is this: <?php function is_unsigned_int($val) { return ctype_digit((string) $value)); } ?> Will return true on 1515, 0xFFFFFFFF, '3515' and '1365158185855141'. Will return false on 0.1515, '415.4134' and '-616'. Be aware though, before PHP 5.1.0 this will return true on an empty string. According to my benchmarks this is about 30% faster than the regex ^\d+$. ---- Server IP: 69.147.83.197 Probable Submitter: 188.126.203.230 ---- Manual Page -- http://www.php.net/manual/en/function.is-int.php Edit -- https://master.php.net/note/edit/93560 Del: integrated -- https://master.php.net/note/delete/93560/integrated Del: useless -- https://master.php.net/note/delete/93560/useless Del: bad code -- https://master.php.net/note/delete/93560/bad+code Del: spam -- https://master.php.net/note/delete/93560/spam Del: non-english -- https://master.php.net/note/delete/93560/non-english Del: in docs -- https://master.php.net/note/delete/93560/in+docs Del: other reasons-- https://master.php.net/note/delete/93560 Reject -- https://master.php.net/note/reject/93560 Search -- https://master.php.net/manage/user-notes.php

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