3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = "0"; $c = $b = empty($a); $b = true; $d = ++$b + $a;
Output for 8.3.0 - 8.3.4, 8.3.6
Warning: Increment on type bool has no effect, this will change in the next major version of PHP in /in/XD7Cn on line 5
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 Warning: Increment on type bool has no effect, this will change in the next major version of PHP in /in/XD7Cn on line 5
Output for 7.2.29 - 7.2.33, 7.3.16 - 7.3.33, 7.4.4 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18

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135.7 ms | 402 KiB | 135 Q