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<?php if (!preg_match('#((?<year>\d+)\s+year(s)?(,\s+)?)?((?<week>\d+)\s+week(s)?(,\s+)?)?((?<day>\d+)\s+day(s)?(,\s+)?)?((?<hour>\d+)\s+hour(s)?(,\s+)?)?((?<minute>\d+)\s+minute(s)?(,\s+)?)?((?<second>\d+)\s+second(s)?)?#', '21 minutes, 34 seconds', $match)) { var_dump($match); }
Output for 4.4.6 - 4.4.9, 5.2.2 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.29 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Output for 5.2.0 - 5.2.1
Warning: preg_match(): Compilation failed: unrecognized character after (?< at offset 4 in /in/pgnrv on line 3 NULL
Output for 4.3.11, 4.4.0 - 4.4.5, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Warning: preg_match(): Compilation failed: unrecognized character after (?< at offset 4 in /in/pgnrv on line 3 array(0) { }
Output for 4.3.0 - 4.3.10
Warning: Compilation failed: unrecognized character after (?< at offset 4 in /in/pgnrv on line 3 array(0) { }
preferences:
227.31 ms | 401 KiB | 313 Q