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run code in 150+ php & hhvm versions
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<?php $vBase = [ 'date' => function($value) { return (bool)preg_match('/^\d{2}\.\d{2}\.\d{4}$/', $value); }, ]; $dateVal[] = date('d.m.Y'); $dateVal[] = date('Y-m-d'); foreach ($dateVal as $date) { var_dump( [ 'value' => $date, 'isValidFormat' => $vBase['date']($date), ] );
Output for 5.4.0 - 5.4.15
Parse error: syntax error, unexpected end of file in /in/0BNkn on line 17
Process exited with code 255.
Output for 5.3.25
Parse error: syntax error, unexpected '[' in /in/d9NVr on line 2
Process exited with code 255.
Output for 5.3.0 - 5.3.24
Parse error: syntax error, unexpected '[' in /in/0BNkn on line 2
Process exited with code 255.