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run code in 300+ PHP versions simultaneously
<?php $first = array(0 => 21, 1 => 2, 2 => 1, 3 => 2); $second = array(0 => 21, 1 => 2); foreach ($second as $v) { unset($first[array_search($v, $first)]); } print_r($first);
Output for 5.6.38 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.28, 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] => 1 [3] => 2 )
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] => 1 [3] => 2 )
preferences:
179.55 ms | 402 KiB | 231 Q