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<?php $regex = "~%(?:(\d+)[$])?[-+]?(?:[ 0]|['].)?(?:[-]?\d+)?(?:[.]\d+)?[%bcdeEufFgGosxX]~"; $format = 'The %s contains %d monkeys'; $arguments = array(5, 'tree'); if (preg_match_all($regex, $format, $expected) > 0) { print_r(max($expected[1])); }
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