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run code in 300+ PHP versions simultaneously
<?php $str = "1111 2222 3333 4444 5555 6666"; if (preg_match_all('~(?:\G(?!^)\s?|\A(?=(?:\d{4}\s?)+\z))(\d{4})~', $str, $m)) { print_r($m[1]); }
Output for 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 - 8.3.7
Array ( [0] => 1111 [1] => 2222 [2] => 3333 [3] => 4444 [4] => 5555 [5] => 6666 )
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 ( [0] => 1111 [1] => 2222 [2] => 3333 [3] => 4444 [4] => 5555 [5] => 6666 )
preferences:
186.22 ms | 402 KiB | 157 Q