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<?php function awesome(...$arrays) { if (!is_array($arrays)) return false; $merged = array_shift($arrays); foreach($arrays as $array) { foreach($array as $k => $v) { $merged[] = $v; } } return $merged; } $array1 = array('A' => 'Adam', 'B' => 'Bernie', 'C' => 'Chris'); $array2 = array('C' => 'Charlie', 'D' => 'David', 'E' => 'Earnslaw'); print_r($array1 + $array2); print_r(array_merge($array1, $array2)); print_r(awesome($array1, $array2));
Output for git.master, git.master_jit, rfc.property-hooks
Array ( [A] => Adam [B] => Bernie [C] => Chris [D] => David [E] => Earnslaw ) Array ( [A] => Adam [B] => Bernie [C] => Charlie [D] => David [E] => Earnslaw ) Array ( [A] => Adam [B] => Bernie [C] => Chris [0] => Charlie [1] => David [2] => Earnslaw )

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