Last Updated : 17 Mar 2025

The array_merge( ) function is a built-in function of PHP. This function is used to merge the elements or values of two or more arrays together into a single array. This function was introduced in PHP 4.0.

Syntax

Parameter

Return Type

The array_merge( ) function returns the merged array.

Note: If two or more array elements have the same key, the last one overrides the others.

EXAMPLE 1

Output:

Array ( [a] => cricket [b] => tennis [c] => football )

EXAMPLE 2

Output:

Array ( [0] => java [1] => T [2] => point )

EXAMPLE 3

Output:

Array( [0] => 1  [1] => 2  [2] => 3  [3] => 4  [4] => 5  [5] => 6   [6] => 7  [7] => 8 )

EXAMPLE 4

Output:

Array ( [sachin] => arjun [0] => 15921 [1] => 200 [2] => virat [3] => ganguly [yuvraj] => world cup [4] => 2011 )