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<?php function merge() { return array_merge(...array_slice(func_get_args(), 1)); } var_dump(array_merge([1, 2, 3], [4, 5, 6], ['a' => 'b'], ['a' => 'c']), merge('foo', [1, 2, 3], [4, 5, 6], ['a' => 'b'], ['a' => 'c']));
Output for 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array(7) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) [4]=> int(5) [5]=> int(6) ["a"]=> string(1) "c" } array(7) { [0]=> int(1) [1]=> int(2) [2]=> int(3) [3]=> int(4) [4]=> int(5) [5]=> int(6) ["a"]=> string(1) "c" }
Output for 5.5.24 - 5.5.35
Parse error: syntax error, unexpected '.' in /in/9WJ8f 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 - 5.3.29, 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '.', expecting ')' in /in/9WJ8f on line 5
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 '.', expecting ')' in /in/9WJ8f on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/9WJ8f on line 5
Process exited with code 255.

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