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run code in 150+ php & hhvm versions
Bugs & Features
<?php function isString($value) { return is_string($value); } $vBase = [ 'date' => function($value) { return (bool)preg_match('/^\d{2}\.\d{2}\.\d{4}$/', $value); }, 'string' => isString, ]; $dateVal[] = date('d.m.Y'); $dateVal[] = date('Y-m-d'); foreach ($dateVal as $date) { var_dump( [ 'value' => $date, 'isValidFormat' => $vBase['date']($date), ] ); } var_dump($vBase['string'](1));
Output for 5.4.0 - 7.1.0
Notice: Use of undefined constant isString - assumed 'isString' in /in/EGf5r on line 11 array(2) { ["value"]=> string(10) "31.05.2013" ["isValidFormat"]=> bool(true) } array(2) { ["value"]=> string(10) "2013-05-31" ["isValidFormat"]=> bool(false) } bool(false)
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/EGf5r on line 7
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/EGf5r on line 7
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/EGf5r on line 7
Process exited with code 255.