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<?php $regex = "~%(?:(\d+)[$])?[-+]?(?:[ 0]|['].)?(?:[-]?\d+)?(?:[.]\d+)?[%bcdeEufFgGosxX]~"; $format = 'The %2$s contains %1$d monkeys'; $arguments = array(5, 'tree'); if (preg_match_all($regex, $format, $expected) > 0) { print_r($expected); }
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [0] => Array ( [0] => %2$s [1] => %1$d ) [1] => Array ( [0] => 2 [1] => 1 ) )

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