PHP - Function array_merge()


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Syntax

array array_merge ( array $array1 [, array $array2 [, array $array3...]] );

Definition and Usage

Merges the elements of one or more arrays together so that the values of one are appended to the end of the previous one.

If the input arrays have the same string keys, then the later value for that key will overwrite the previous one.

Parameters

Parameter Description
array1 Required. Specifies an array.
array2 Optional. Specifies an array.
array3 Optional. Specifies an array.

Return Values

It returns the resulting array.

Example

Try out following example −

<?php
   $array1=array("a"=>"Horse","b"=>"Cat","c"=>"Dog");
   $array2=array("d"=>"Cow","a"=>"Cat","e"=>"elephant");
   
   print_r(array_merge($array1,$array2));
?> 

This will produce the following result −

Array ( [a] =>  Cat [b] =>  Cat [c] =>  Dog [d] =>  Cow [e] =>  elephant )

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