使用children函数是否是一种良好的做法。php覆盖父核心函数？

店面主题示例：

Core function

if ( ! function_exists( \'storefront_primary_navigation_wrapper\' ) ) {
    /**
     * The primary navigation wrapper
     */
    function storefront_primary_navigation_wrapper() {
        echo \'<div class="storefront-primary-navigation"><div class="col-full">\';
    }
}

children functions.php

  function storefront_primary_navigation_wrapper() {
      // modified content;
  }