[RESOLVED] Applying functions to array values

rlalande

Another question

I need to apply some functions to every value inside an array.

I need to do all of the things below, but not just on "firstname", on all the POST values.

$POST[firstname] = stripslashes($POST[firstname]);
$POST[firstname] = htmlspecialchars($POST[firstname], ENT_QUOTES);
$POST[firstname] = urlencode($POST[firstname]);

Thanks again

Rock

NogDog

[man]array_walk/man

rlalande

Sorry for my ignorance, but I tried below and it doesn't work:

array_walk($POST, 'stripslashes');
array_walk($POST, 'htmlspecialchars');
array_walk($_POST, 'urlencode');

Warning: Wrong parameter count for stripslashes() in ../sendcard.php on line 10

laserlight

If you read the PHP Manual entry NogDog linked to, you will find that:
"Typically, funcname takes on two parameters. The array parameter's value being the first, and the key/index second."

So, you cannot use say, htmlspecialchars() directly, but have to wrap it in another function, e.g.,

array_walk($_POST, create_function('&$value,$key', '$value = htmlspecialchars($value);'));

Of course, this is not a good example since you cannot be sure that $_POST is a single dimensional array.

rlalande

Thanks... it is a single dimensional array and the above works.