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Source View: edit_form_advanced

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Line Code
2425
2426      /*
2427       * Some meta boxes hook into these actions to add hidden input fields in the classic post form. For backwards
2428       * compatibility, we can capture the output from these actions, and extract the hidden input fields.
2429       */
2430      ob_start();
2431      /** This filter is documented in wp-admin/edit-form-advanced.php */
2432      do_action( 'edit_form_after_title', $post );
2433      /** This filter is documented in wp-admin/edit-form-advanced.php */
2434      do_action( 'edit_form_advanced', $post );
2435      $classic_output = ob_get_clean();
2436
2437      $classic_elements = wp_html_split( $classic_output );
2438      $hidden_inputs    = '';
2439      foreach ( $classic_elements as $element ) {
2440           if ( 0 !== strpos( $element, '<input ' ) ) {
2441                continue;
2442           }
2443