Title: Code causes “403 FORBIDDEN” error when saved
Last modified: October 7, 2022

---

# Code causes “403 FORBIDDEN” error when saved

 *  [Dax Liniere](https://wordpress.org/support/users/daxliniere/)
 * (@daxliniere)
 * [3 years, 8 months ago](https://wordpress.org/support/topic/code-causes-403-forbidden-error-when-saved/)
 * Hi there,
    When I try to create a new snippet, I get a “403 forbidden” error 
   if I Save or Save+Activate. Specifically, the second last line (**return $output**…)
   seems to be the culprit. I entered the code line-by-line (always with the closing}
   bracket) and it saves fine until I get to that second last line.
 *     ```
       add_filter( ‘sliced_get_invoice_description’, ‘si20220927_do_something_with_the_description’, 10, 2 );
       function si20220927_do_something_with_the_description( $output, $id ) {
       if ( !str_contains( $output, “[” )) return $output;
       preg_match( “/\[([^\]]*)\]/”, $output, $matches );
       $eval_inside = str_replace( ‘total’, sliced_get_invoice_total_raw(), $matches[0] );
       $eval_inside = strtr( $eval_inside, array( ‘[‘ => ”, ‘]’ => ” ) );
       $eval_inside = eval( “return ” . $eval_inside . “;” );
       return $output = preg_replace( “/\[([^\]]*)\]/”, $eval_inside, $output );
       }
       ```
   
 * I didn’t write the code, it was written by a developer as a solution to a feature
   suggestion I had. They sent a screenshot showing it working on their installation,
   so I’m afraid it might be due to Code Snippets.
 * It is specifically the **preg_replace( “/\[([^\]]\*)\]/”,** part, since I can
   save with **return $output = $eval_inside, $output );**
 * Interestingly, if I comment out that second last line (**//return $output**…),
   it still causes the 403 error.
 * Anyone have any idea what might be wrong?
 * Thanks in advance,
    Dax Liniere.
    -  This topic was modified 3 years, 8 months ago by [Dax Liniere](https://wordpress.org/support/users/daxliniere/).

Viewing 1 replies (of 1 total)

 *  Plugin Author [Shea Bunge](https://wordpress.org/support/users/bungeshea/)
 * (@bungeshea)
 * [3 years, 3 months ago](https://wordpress.org/support/topic/code-causes-403-forbidden-error-when-saved/#post-16539981)
 * Hi Dax,
 * Would it be possible to give this slightly modified code a try and see whether
   it’s still causing the same error?
 * There were some weird lines in the original version that _might_ have been causing
   issues, but I can’t be 100% sure.
 *     ```wp-block-code
       add_filter( 'sliced_get_invoice_description', function ( $output ) {
       	if ( ! str_contains( $output, '[' ) ) {
       		return $output;
       	}
   
       	preg_match( '/\[([^]]*)]/', $output, $matches );
   
       	$eval_inside = str_replace( 'total', sliced_get_invoice_total_raw(), $matches[0] );
       	$eval_inside = strtr( $eval_inside, array( '[' => ", ']' => " ) );
       	$eval_inside = eval( sprintf( 'return %s;', $eval_inside ) );
   
       	return preg_replace( '/\[([^]]*)]/', $eval_inside, $output );
       }, 10, 2 );
       ```
   

Viewing 1 replies (of 1 total)

The topic ‘Code causes “403 FORBIDDEN” error when saved’ is closed to new replies.

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 * 1 reply
 * 2 participants
 * Last reply from: [Shea Bunge](https://wordpress.org/support/users/bungeshea/)
 * Last activity: [3 years, 3 months ago](https://wordpress.org/support/topic/code-causes-403-forbidden-error-when-saved/#post-16539981)
 * Status: not a support question