[RESOLVED] What's wrong with this line of PHP?

[narutodude000]

$url = str_replace(str_replace(' ','%20',stripslashes(trim($_POST['url'])))); 

There was an error with my script. I debugged and the error lies in the line above. What's wrong with it?

[Dasher]

I looks like you have one too many str_replace functions entered

$url = str_replace(' ','%20',stripslashes(trim($_POST['url']))); 

But you might want this function instead;

$url = urlencode($_POST['url']; 

Or are your wanting to decode then it should be

$url = urldecode($_POST['url']; 

[narutodude000]

Sorry, careless mistakes

I just want to provide some basic PHP injection prevention before using Regex to check it. $_POST['url'] is user submitted