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run code in 300+ PHP versions simultaneously
<?php $i = 0; $data = [ '1' => null, '2' => null, '3' => null, '4' => null, '5' => null ]; foreach ($data as &$item) { $item = ++$i; } foreach ($data as $key => $item) { echo $item; } foreach ($data as $key => $item) { echo $item; }
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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
1234412344
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 1234412344
preferences:
151.29 ms | 402 KiB | 159 Q