Question

I am not much used to using rtrim and Reg expressions. So I wanted to get my doubt cleared about this:

Here is a url: http://imgur.com/r/pics/paoWS

I am trying to use rtrim function on this url to pick out only the ‘paoWs’ from the whole url.
Here is what i tried:

$yurl = 'http://imgur.com/r/pics/paoWS';
$video_id = parse_url($yurl, PHP_URL_PATH);

$yid=rtrim( $video_id, '/' );

And i am using ‘$yid’ to hotlink the image from imgur. But What I get after trying this function is:

$yid= '/r/pics/paoWS'

How do I solve this?

Answer 1

rtrim is used for trimming down a string of certain characters or whitespace on the right-hand side. It certainly shouldn’t be used for your purpose.

Assuming the URL structure will always be the same, you could just do something like this:

$yurl = 'http://imgur.com/r/pics/paoWS'; 
$video_id = parse_url($yurl, PHP_URL_PATH);
$parts = explode('/', $video_id)
$yid = end($parts);