3v4l.org

run code in 300+ PHP versions simultaneously
<?php $filename1 = "[Study] - Walton, Charles E - 01-02-2012.txt"; $filename2 = "[Rx] - 01-02-2003 - Walton, Charles E.pdf"; $filename3 = "9-29-2014.pdf"; function validate_date($filename) { preg_match("/^(\D.*)(\d+-\d+-\d+)(\D.*)/",trim($filename),$matches); $date_arr = explode("-",$matches[2]); $month = str_pad($matches[0], 2, '0', STR_PAD_LEFT); $day = str_pad($matches[1], 2, '0', STR_PAD_LEFT); $year = $matches[2]; if ($year < 100) { if ($year > date("Y")+10) $year = $year + 1900; else $year = $year + 2000; } $date = $month . "-" . $day . "-" . $year; $filename = $matches[1] . $date . $matches[3]; return $matches; } print_r (validate_date($filename3)); //print_r (validate_date($filename2));
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
Warning: Undefined array key 2 in /in/JOaCr on line 10 Deprecated: explode(): Passing null to parameter #2 ($string) of type string is deprecated in /in/JOaCr on line 10 Warning: Undefined array key 0 in /in/JOaCr on line 11 Deprecated: str_pad(): Passing null to parameter #1 ($string) of type string is deprecated in /in/JOaCr on line 11 Warning: Undefined array key 1 in /in/JOaCr on line 12 Deprecated: str_pad(): Passing null to parameter #1 ($string) of type string is deprecated in /in/JOaCr on line 12 Warning: Undefined array key 2 in /in/JOaCr on line 13 Warning: Undefined array key 1 in /in/JOaCr on line 20 Warning: Undefined array key 3 in /in/JOaCr on line 20 Array ( )
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Warning: Undefined array key 2 in /in/JOaCr on line 10 Deprecated: explode(): Passing null to parameter #2 ($string) of type string is deprecated in /in/JOaCr on line 10 Warning: Undefined array key 0 in /in/JOaCr on line 11 Deprecated: str_pad(): Passing null to parameter #1 ($string) of type string is deprecated in /in/JOaCr on line 11 Warning: Undefined array key 1 in /in/JOaCr on line 12 Deprecated: str_pad(): Passing null to parameter #1 ($string) of type string is deprecated in /in/JOaCr on line 12 Warning: Undefined array key 2 in /in/JOaCr on line 13 Warning: Undefined array key 1 in /in/JOaCr on line 20 Warning: Undefined array key 3 in /in/JOaCr on line 20 Array ( )
Output for 8.0.0 - 8.0.30
Warning: Undefined array key 2 in /in/JOaCr on line 10 Warning: Undefined array key 0 in /in/JOaCr on line 11 Warning: Undefined array key 1 in /in/JOaCr on line 12 Warning: Undefined array key 2 in /in/JOaCr on line 13 Warning: Undefined array key 1 in /in/JOaCr on line 20 Warning: Undefined array key 3 in /in/JOaCr on line 20 Array ( )
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined offset: 2 in /in/JOaCr on line 10 Notice: Undefined offset: 0 in /in/JOaCr on line 11 Notice: Undefined offset: 1 in /in/JOaCr on line 12 Notice: Undefined offset: 2 in /in/JOaCr on line 13 Notice: Undefined offset: 1 in /in/JOaCr on line 20 Notice: Undefined offset: 3 in /in/JOaCr on line 20 Array ( )
Output for 7.3.32 - 7.3.33
Array ( )
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.1 - 5.1.6, 5.2.0 - 5.2.17
Notice: Undefined offset: 2 in /in/JOaCr on line 10 Notice: Undefined offset: 0 in /in/JOaCr on line 11 Notice: Undefined offset: 1 in /in/JOaCr on line 12 Notice: Undefined offset: 2 in /in/JOaCr on line 13 Notice: Undefined offset: 1 in /in/JOaCr on line 20 Notice: Undefined offset: 3 in /in/JOaCr on line 20 Array ( )
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/JOaCr on line 27
Process exited with code 255.

preferences:
243.95 ms | 401 KiB | 366 Q