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Explain array_map() function in PHP
PHP offers various types of inbuilt functions to perform distinctive functionalities. The array_map() is an inbuilt function in PHP and it works with PHP array.
This function works in such a way that it sends every component of an array to a predefined function and returns an array with new values as modified by that function.
This function changes all elements of at least one array as indicated by some user-defined condition in a simple way.
Syntax
array_map (function name, array1,array2...)
Parameters
This function takes 2 compulsory parameters one is function name and another is an array and the rest are discretionary.
functionname(mandatory)
This parameter characterizes the name of the user-defined function as per which the values in the array to be changed.
array1(mandatory)
This parameter determines the array to be changed.
Example
<?php
function add($arr){
return ($arr+ 2);
}
$arr1 = array(7, 6, 2, 4);
print_r(array_map("add", $arr1));
?>Output
Array ( [0] => 9 [1] => 8 [2] => 4 [3] => 6 )
Explanation
In the above example, we have defined a function which takes the input as an array and adds 2 to every element of that array
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