3v4l.org

run code in 300+ PHP versions simultaneously
<?php $s = 'there is no spoon'; $matches = []; preg_match('~(spoon|fiddle)~',$s,$matches); var_dump($matches); //seems that yes, we can reuse $matches. preg_match('~(blah)~',$s,$matches); var_dump($matches);
Output for 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 - 8.3.4, 8.3.6
array(2) { [0]=> string(5) "spoon" [1]=> string(5) "spoon" } array(0) { }
Output for 8.3.5
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 array(2) { [0]=> string(5) "spoon" [1]=> string(5) "spoon" } array(0) { }

preferences:
214.45 ms | 402 KiB | 284 Q