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<?php function validatePrintf($format, $arguments) { if (preg_match_all("~%(?:(\d+)[$])?[-+]?(?:[ 0]|['].)?(?:[-]?\d+)?(?:[.]\d+)?[%bcdeEufFgGosxX]~", $format, $expected) > 0) { return (count((array) $arguments) >= intval(max($expected[1]))); } return false; } var_dump(validatePrintf('The %2$s contains %1$d monkeys'), array(5, 'tree'));
Output for 7.1.0
Fatal error: Uncaught ArgumentCountError: Too few arguments to function validatePrintf(), 1 passed in /in/P9RFU on line 12 and exactly 2 expected in /in/P9RFU:2 Stack trace: #0 /in/P9RFU(12): validatePrintf('The %2$s contai...') #1 {main} thrown in /in/P9RFU on line 2
Process exited with code 255.
Output for 5.1.0 - 5.6.28, 7.0.0 - 7.0.14
Warning: Missing argument 2 for validatePrintf(), called in /in/P9RFU on line 12 and defined in /in/P9RFU on line 2 Notice: Undefined variable: arguments in /in/P9RFU on line 6 bool(false) array(2) { [0]=> int(5) [1]=> string(4) "tree" }
Output for hhvm-3.10.0 - 3.12.0
Warning: validatePrintf() expects exactly 2 parameters, 1 given in /in/P9RFU on line 4 Notice: Undefined variable: arguments in /in/P9RFU on line 6 bool(false) array(2) { [0]=> int(5) [1]=> string(4) "tree" }
Output for 5.0.0 - 5.0.5
Warning: Missing argument 2 for validatePrintf() in /in/P9RFU on line 2 bool(false) array(2) { [0]=> int(5) [1]=> string(4) "tree" }
Output for 4.3.0 - 4.4.9
Warning: Missing argument 2 for validateprintf() in /in/P9RFU on line 2 bool(false) array(2) { [0]=> int(5) [1]=> string(4) "tree" }