This function combines multiple values into a single array. Any number of values can be passed in the function call, including mixed arrays; any duplicate keys are overwritten by later elements in later arrays. Keys are merged in the order of the arrays that were passed.
Subarrays are not recursed over and are not altered; if you want to merge arrays recursively, use array_merge_recursive() .
Scalar values can also be passed; they're treated as single-element indexed arrays.
See also array_merge_recursive()
$ax = array("a" => "alpha", "b" => "bravo", "c" => "charlie", "d" => "delta"); $ay = array("t" => "tango", "u" => "uniform", "v" => "victor", "w" => "whiskey", "x" => "x-ray"); $az = array("lima", "mike", "november"); echo "The merged arrays together form:\n"; print_r(array_merge($ax, $ay, $az)); Output: The merged arrays together form: Array ( [a] => alpha [b] => bravo [c] => charlie [d] => delta [t] => tango [u] => uniform [v] => victor [w] => whiskey [x] => x-ray  => lima  => mike  => november )
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