How can you modify an array before it is output in PHP?

To modify an array before it is output in PHP, you can use array functions such as array_map or array_walk to apply a callback function to each element of the array and make the necessary modifications. This allows you to manipulate the array data before displaying it to the user. 

// Sample array
$numbers = [1, 2, 3, 4, 5];

// Modify the array by squaring each element
$modifiedNumbers = array_map(function($num) {
    return $num * $num;
}, $numbers);

// Output the modified array
print_r($modifiedNumbers);

Keywords

array modification output PHP manipulation

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