array map with key php code example
Example 1: using array map php
array_map ( callable $callback , array $array1 [, array $... ] ) : array
Example 2: array map php
The array_map() function sends each value of an array to a user-made function, and returns an array with new values, given by the user-made function.
Tip: You can assign one array to the function, or as many as you like.
Syntax
array_map(functionname, array1, array2, array3, ...)
Example
Send each value of an array to a function, multiply each value by itself, and return an array with the new values:
<?php
function myfunction($val)
{
return($val*$val);
}
$a=array(1,2,3,4,5);
print_r(array_map("myfunction",$a));
?>
Example 3: php array map
$func = function cube($n) {
return ($n * $n * $n);
}
$a = [1, 2, 3, 4, 5];
$b = array_map( $func, $a );