array_map() function in PHP

array_map() function sends each value of the array to a user-written function, which returns the new value.

Syntax

array_map(callback, arr1, arr2 −, arr3 −, arr4 −, …)

Parameters

• callback−Callback function

• arr1 -Array to be modified

• arr2 -Array to be modified

• arr3 -The array to modify

Returns

array_map() function returns an array containing the user-created function after applying it to each array. The value of the first array.

Example

Real-time demonstration

Output

Array ( [0] => 1 [1] => 4 [2] => 9 )

Example

Let us look at another example of using array_map() to create an array of arrays Example.

Real-time demonstration

Output

Array ( [0] => Array ( [0] => 1 [1] => steve [2] => cricket ) [1] => Array ( [0] => 2 [1] => david [2] => football ) [2] => Array ( [0] => 3 [1] => nadal [2] => tennis ) )

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