customization - Remove slashes (both before and after) in relative post url

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I've seen a few "remove last" slash, but not how to remove both the first and last slash.

I've tried:

$post_url_rel = wp_make_link_relative(get_permalink( $post_id ));       

ltrim($post_url_rel, '/');                  

rtrim($post_url_rel, '/');

But it still says /postname/

Anybody has any idea why this didn't work?

I've seen a few "remove last" slash, but not how to remove both the first and last slash.

I've tried:

$post_url_rel = wp_make_link_relative(get_permalink( $post_id ));       

ltrim($post_url_rel, '/');                  

rtrim($post_url_rel, '/');

But it still says /postname/

Anybody has any idea why this didn't work?

• posts
• customization
• urls

Share Improve this question asked Jun 26, 2020 at 7:54 JoBeJoBe 17122 silver badges1111 bronze badges

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1 Answer 1

Sorted by: Reset to default 2

It's because you're not actually putting the result of ltrim() and rtrim() back into the variable. Those functions return the trimmed value, they don't modify the passed variable. So you need to do this:

$post_url_rel = wp_make_link_relative(get_permalink( $post_id ));       
$post_url_rel = ltrim($post_url_rel, '/');                  
$post_url_rel = rtrim($post_url_rel, '/');

Or better yet, just use trim(), which will remove it from both ends:

$post_url_rel = wp_make_link_relative(get_permalink( $post_id ));        
$post_url_rel = trim($post_url_rel, '/');                  

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