Easy way to apply a function to an array

Question

I am aware of array_walk() and array_map(). However when using the former like so (on an old project) it failed

array_walk($_POST,          


        

Answer 1

http://php.net/manual/en/function.array-walk.php says that array_walk will call the function with 2 arguments, the value and the key. You should write a new function to wrap mysql_real_escape_string. Something like:

function wrapper($val, $key){
    return mysql_real_escape_string($val);
}

And then:

array_walk($_POST, 'wrapper');

Sorry if my PHP is not correct, but I think you'll catch the general idea.