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<?php $input = "12 XY 123456789"; if (preg_match('/^(?:(\d+)\s*)?(A|B|DF|XY)(?:\s*(\d+))?$/', $input, $matches)){ array_shift($matches); print_r($matches); }
Output for 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
Array ( [0] => 12 [1] => XY [2] => 123456789 )
preferences:
141.23 ms | 407 KiB | 5 Q