3v4l.org

run code in 300+ PHP versions simultaneously
<?php $callbacks = []; for(i = 0; i < 10; i++) { $callbacks[] = function() { echo 'do something'; }; } foreach ($callbacks as $cb) { $cb(); }
Output for 5.4.0 - 5.4.32
Parse error: syntax error, unexpected '=', expecting ';' in /in/PRq67 on line 4
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/PRq67 on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/PRq67 on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/PRq67 on line 3
Process exited with code 255.
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221.35 ms | 1395 KiB | 123 Q