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run code in 200+ php & hhvm versions
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<?php $data = [ 'test' => 'test', 0 => '0', 'name' => 'Nik', 10 => '10', ]; $but = [0, 'test']; var_dump( array_diff(array_keys($data), $but) );
Output for 5.4.0 - 7.2.0
array(2) { [2]=> string(4) "name" [3]=> int(10) }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/GBC85 on line 2
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 '[' in /in/GBC85 on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/GBC85 on line 2
Process exited with code 255.