3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { private $boo = [ 'a' => 1 + 2, ] } new Foo();
Output for 5.4.0 - 5.4.29
Parse error: syntax error, unexpected '+', expecting ']' in /in/21fs2 on line 6
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected '[' in /in/21fs2 on line 5
Process exited with code 255.
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181.84 ms | 1395 KiB | 66 Q