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<?php $ary = [ 'foo' => 'a', 'bar' => 'b', 'baz' => 'c' ]; if (array_key_exists('bar', $ary)) { print 'exists'; } else { print 'does not exist'; }
Output for 5.4.0 - 7.1.0
exists
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/Cf0Yg on line 3
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/Cf0Yg on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Cf0Yg on line 3
Process exited with code 255.