3v4l.org

run code in 300+ PHP versions simultaneously
<?php $arr = [ 1.0, 1, "0x1", 0b1, 0B1, 1e1, 1E1, 01 ]; foreach(arr as a) foreach(arr as b){ echo "$a == $b"; var_dump(1 == "0x1"); } ?>
Output for 5.4.0 - 5.4.35
Parse error: syntax error, unexpected ')', expecting :: (T_PAAMAYIM_NEKUDOTAYIM) in /in/i9qrl on line 14
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/i9qrl 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/i9qrl on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/i9qrl on line 3
Process exited with code 255.
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211.3 ms | 1395 KiB | 125 Q