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run code in 200+ php & hhvm versions
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<?php $products = array(5,6,7); $kp = "test:"; var_dump(array_map(function($product) use ($kp) { return $kp . $product; }, $products));
based on ivvOj
Output for 5.3.0 - 7.2.0
array(3) { [0]=> string(6) "test:5" [1]=> string(6) "test:6" [2]=> string(6) "test:7" }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/uktQL on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/uktQL on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/uktQL on line 6
Process exited with code 255.