note 43710 added to function.version-compare

Here's a wrapper which is more tolerant as far as order of arguments is considered: <?php function ver_cmp($arg1, $arg2 = null, $arg3 = null) { static $phpversion = null; if ($phpversion===null) $phpversion = phpversion(); switch (func_num_args()) { case 1: return version_compare($phpversion, $arg1); case 2: if (preg_match('/^[lg][te]|[<>]=?|[!=]?=|eq|ne|<>$/i', $arg1)) return version_compare($phpversion, $arg2, $arg1); elseif (preg_match('/^[lg][te]|[<>]=?|[!=]?=|eq|ne|<>$/i', $arg2)) return version_compare($phpversion, $arg1, $arg2); return version_compare($arg1, $arg2); default: $ver1 = $arg1; if (preg_match('/^[lg][te]|[<>]=?|[!=]?=|eq|ne|<>$/i', $arg2)) return version_compare($arg1, $arg3, $arg2); return version_compare($arg1, $arg2, $arg3); } } ?> It also uses phpversion() as a default version if only one string is present. It can make your code look nicer 'cuz you can now write: <?php if (ver_cmp($version1, '>=', $version2)) something; ?> and to check a version string against the PHP's version you might use: <?php if (ver_cmp('>=', $version)) something; ?> instead of using phpversion(). ---- Manual Page -- http://www.php.net/manual/en/function.version-compare.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+43710 Delete -- http://master.php.net/manage/user-notes.php?action=delete+43710&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+43710&report=yes Search -- http://master.php.net/manage/user-notes.php