3v4l.org

run code in 300+ PHP versions simultaneously
<?php $one = [ "one" => [ "rawr1" -> "sweet1" ], "two" => [ "rawr2" -> "sweet2" ], "three" => [ "rawr3" -> "sweet3" ] ]; $keys = ["one", "three"]; array_intersect_key($one, $keys);
Output for 5.4.0 - 5.4.31
Parse error: syntax error, unexpected '->' (T_OBJECT_OPERATOR), expecting ']' in /in/IWfGn on line 5
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 '[' in /in/IWfGn 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/IWfGn on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/IWfGn on line 3
Process exited with code 255.

preferences:
220.44 ms | 1395 KiB | 121 Q