3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = ('e' => 22, 'r' => 66); $b = ('t' => 65); print_r(array_merge($a, $b));
Output for 5.4.0 - 5.4.26
Parse error: syntax error, unexpected '=>' (T_DOUBLE_ARROW) in /in/HatLH on line 2
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 - 5.3.28
Parse error: syntax error, unexpected T_DOUBLE_ARROW in /in/HatLH on line 2
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 T_DOUBLE_ARROW in /in/HatLH on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/HatLH on line 2
Process exited with code 255.
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203.89 ms | 1395 KiB | 116 Q