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run code in 300+ PHP versions simultaneously
<?php $string = '1|2\\|2|3\\\\|4\\\\\\|4'; $array = preg_split('~\\\\.(*SKIP)(*FAIL)|\|~s', $string); print_r($array);
Output for 5.4.0 - 5.4.45, 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Array ( [0] => 1 [1] => 2\|2 [2] => 3\\ [3] => 4\\\|4 )
preferences:
247.3 ms | 404 KiB | 373 Q