PHP: array_map() function

PHP: Applies the callback to the elements of the given arrays

The array_map() function sends each value of an array to a user defined function and gets an array with new values applied by the user defined function.

Version:

(PHP 4 and above)

Syntax:

array_map(user-supplied-function, array1, array2, ...)

Parameters:

Return value:

An array containing all the elements of array1 after applying the user_function() to each one.

Value Type: Array

Example:

<?php
function square($x)
{
return($x * $x);
}
$a = array(10,12,14,16,18,20);
$b = array_map("square",$a);
print_r($b);
?>

Output:

Array( [0] => 100 [1] => 144 [2] => 196 [3] => 256 [4] => 324 [5] => 400)

Pictorial Presentation:

View the example in the browser

Practice here online :

See also

PHP Function Reference

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