[wp-trac] [WordPress Trac] #9090: validation broken in htmlspecialchars_decode replacement function

WordPress Trac wp-trac at lists.automattic.com
Wed Feb 11 18:00:43 GMT 2009

#9090: validation broken in htmlspecialchars_decode replacement function
 Reporter:  stringfold    |       Owner:                                                        
     Type:  defect (bug)  |      Status:  new                                                   
 Priority:  high          |   Milestone:  2.7.2                                                 
Component:  Validation    |     Version:                                                        
 Severity:  normal        |    Keywords:  compat.php, htmlspecialchars_decode.  validation, PHP4
 There is a variable name mismatch in the WordPress version of the function
 htmlspecialchars_decode (introduced in PHP5.1).  Parameter 1 is $str, but
 the validation tests $string, and thus the function will never execute,
 because $string is always null and fails the test.

 This is a regression because it broke the AZIndex plugin (version 0.7.5)
 when the "ignore characters" option was set for an index.  It will also
 break any code, plugin, or theme that uses this function when running on
 PHP < 5.1.

 The line in error is line 104 in wp-includes/compat.php:

 if ( !is_scalar( $string ) ) {

 should be

 if ( !is_scalar( $str ) ) {

Ticket URL: <https://core.trac.wordpress.org/ticket/9090>
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