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<?php $dd = 'sfadsfa'; $oo = platne_datum(); echo $oo; var_dump(explode('-', '')); die(); function platne_datum($datum) { return preg_match('~^([1-9]|19|[12][0-8]|29(?=\\.([^2]|2\\.(([02468][048]|[13579][26])00|[0-9]{2}(0[48]|[2468][048]|[13579][26]))))|30(?=\\.[^2])|31(?=\\.([13578][02]?\\.)))\\.([1-9]|1[012])\\.[0-9]{4}$~D', $datum); }
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught ArgumentCountError: Too few arguments to function platne_datum(), 0 passed in /in/dXJfd on line 3 and exactly 1 expected in /in/dXJfd:6 Stack trace: #0 /in/dXJfd(3): platne_datum() #1 {main} thrown in /in/dXJfd on line 6
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20
Warning: Missing argument 1 for platne_datum(), called in /in/dXJfd on line 3 and defined in /in/dXJfd on line 6 Notice: Undefined variable: datum in /in/dXJfd on line 7 0array(1) { [0]=> string(0) "" }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5
Warning: Missing argument 1 for platne_datum() in /in/dXJfd on line 6 0array(1) { [0]=> string(0) "" }

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