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run code in 300+ PHP versions simultaneously
<?php $hits = []; preg_match_all("/(?<=\s)\w/", " this is a string ", $hits, PREG_PATTERN_ORDER | PREG_OFFSET_CAPTURE); $result = array_column ( $hits[0], 1 ); $s_result = join ( ", ", $result); echo $s_result;
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
2, 11, 16, 20
preferences:
175.04 ms | 408 KiB | 5 Q