3v4l.org

run code in 300+ PHP versions simultaneously
<?php $o = []; $var = ["",0,null,1,2,3,$foo,$o['myIndex']]; array_walk($var, function($v) { echo (!isset($v) || $v == false) ? 'true ' : 'false'; echo ' ' . (@empty($v) ? 'true' : 'false'); echo "\n"; });
Output for 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
Warning: Undefined variable $foo in /in/pFaPN on line 4 Warning: Undefined array key "myIndex" in /in/pFaPN on line 4 true true true true true true false false false false false false true true true true
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: Undefined variable $foo in /in/pFaPN on line 4 Warning: Undefined array key "myIndex" in /in/pFaPN on line 4 true true true true true true false false false false false false true true true true
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: foo in /in/pFaPN on line 4 Notice: Undefined index: myIndex in /in/pFaPN on line 4 true true true true true true false false false false false false true true true true
Output for 7.3.32 - 7.3.33
true true true true true true false false false false false false true true true true
preferences:
231.97 ms | 401 KiB | 298 Q