[wp-trac] [WordPress Trac] #49002: class-wp-hooks.php -> function apply_filters() -> Add source code: Check if callable function or method exists.

[WordPress Trac]

#49002: class-wp-hooks.php -> function apply_filters() -> Add source code: Check if
callable function or method exists.
---------------------------+-----------------------------
 Reporter:  sjoerdlinders  |      Owner:  (none)
     Type:  enhancement    |     Status:  new
 Priority:  normal         |  Milestone:  Awaiting Review
Component:  Site Health    |    Version:  5.3.1
 Severity:  trivial        |   Keywords:  has-patch
  Focuses:                 |
---------------------------+-----------------------------
 {{{#!php
 <?php

         public function apply_filters( $value, $args ) {
                 if ( ! $this->callbacks ) {
                         return $value;
                 }

                 $nesting_level = $this->nesting_level++;

                 $this->iterations[ $nesting_level ] = array_keys(
 $this->callbacks );
                 $num_args = php5_count( $args );

                 do {
                         $this->current_priority[ $nesting_level ] =
 $priority = current( $this->iterations[ $nesting_level ] );

                         foreach ( $this->callbacks[ $priority ] as $the_ )
 {
                                 if( ! $this->doing_action ) {
                                         $args[ 0 ] = $value;
                                 }

 <Add:line1>                     // Check if callable function or method
 exists.
 <Add:line2>                     if ( !is_callable( $the_['function'] ) )
 continue;

                                 // Avoid the array_slice if possible.
                                 if ( $the_['accepted_args'] == 0 ) {
                                         $value = call_user_func_array(
 $the_['function'], array() );
                                 } elseif ( $the_['accepted_args'] >=
 $num_args ) {
                                         $value = call_user_func_array(
 $the_['function'], $args );
                                 } else {
                                         $value = call_user_func_array(
 $the_['function'], array_slice( $args, 0, (int)$the_['accepted_args'] ) );
                                 }
                         }
                 } while ( false !== next( $this->iterations[
 $nesting_level ] ) );

                 unset( $this->iterations[ $nesting_level ] );
                 unset( $this->current_priority[ $nesting_level ] );

                 $this->nesting_level--;

                 return $value;
         }


 }}}

-- 
Ticket URL: <https://core.trac.wordpress.org/ticket/49002>
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