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run code in 300+ PHP versions simultaneously
<?php function foo($a, array $b = null, array $c = null) { var_dump(func_get_args()); } foo(1, [], []); foo(1); foo(1, null, null);
Output for 7.0.0 - 7.0.25, 7.1.0 - 7.1.20, 7.2.6 - 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
array(3) { [0]=> int(1) [1]=> array(0) { } [2]=> array(0) { } } array(1) { [0]=> int(1) } array(3) { [0]=> int(1) [1]=> NULL [2]=> NULL }
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(3) { [0]=> int(1) [1]=> array(0) { } [2]=> array(0) { } } array(1) { [0]=> int(1) } array(3) { [0]=> int(1) [1]=> NULL [2]=> NULL }

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