How to call array_map() without using a closure

Question

I have something like this:

public static function lengtOfElements($array){
    return array_map(function($item){return strlen($item);},$array);
}

What I want to do is to use strlen($string) directly in array_map, but when I try it it won't work.. Why is the reason?

Something like this:

public static function lengtOfElements($array){
    return array_map(strlen($string),$array);
}

because strlen is called ONCE, before array_map even starts, and its returned value is passed in to array_map as a static value. — Marc B, Jan 23 '13 at 16:49

score 7 · Accepted Answer · answered Jan 23 '13 at 16:50

7

Your syntax is a little off:

return array_map('strlen',$array);

answered Jan 23 '13 at 16:50

John Conde

1 Answers1