What's the syntax for doing a function to everything in an array?

If this is possible please tell me how to do it, it's important.

 

Your looking for array_walk(), array_map() or just the foreach loop.

 

I'm trying to use the foreach loop, but I'm not sure how to do it and I didn't understand it from the link either.

 

<?php
    // this array has 3 elements: one, two and three
    $myArray = array('one', 'two', 'three');
  
    // this will 'iterate' (repeat over) each element in the array
    foreach ($myArray as $element) {
        // so this is executed 3 times
        echo $element;
    }
?>

PHP:

 

I pretty much understand that, so I could replace echo with my function that I made and it would do that for each element of my array? Also, could element have been any name since it appears to be a variable?

 

Can I iterate through two arrays at the same time at the same speed? Or can I add to a variable inside the function every time it's iterated? Either one of these will work for me.

 

As Deacalion said, the best approach is array_walk:

$fruits = array("d" => "lemon", "a" => "orange", "b" => "banana", "c" => "apple");

function test_print($item, $key)
{
    echo "$key. $item<br />\n";
}

array_walk($fruits, 'test_print');

PHP:

You can see that array_talk will call the function test_print for every item in the array.

 

Can someone explain that chunck of code? I don't understand what it does and does it do what I said I wanted it too?