3v4l.org

run code in 300+ PHP versions simultaneously
<?php $matches = new stdClass; preg_match("((foo)+)", "foo", $matches); var_dump($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 - 8.1.30, 8.2.0 - 8.2.26, 8.3.0 - 8.3.14, 8.4.1
array(2) { [0]=> string(3) "foo" [1]=> string(3) "foo" }

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52.65 ms | 407 KiB | 5 Q