PHP实现通过正则表达式替换回调的内容标签

本文实例讲述了PHP实现通过正则表达式替换回调的内容标签。分享给大家供大家参考。具体实现方法如下：

    function my_wp_plugin_tag_action($content,$tag,$function,$args = FALSE) {
     // match all regular expressions
     preg_match_all($tag,$content,$matches);
     if (count($matches)>0) {
      // filter duplicates
      $matches = array_unique($matches);
      // loop through
      $tag_results = array();
      $found_tags = array();
      foreach ($matches as $idx => $match) {
       //build arg array
       $full_tag = array_shift($match);
       //call function, adding function output and full tag text to replacement array
       $tag_results[] = my_wp_plugin_buffer_func($function,$match);
       $found_tags[] = $full_tag;
      }
      // replace all tags with corresponding text
      $content = str_replace($found_tags,$tag_results,$content);
     }
     return $content;
    }

希望本文所述对大家的php程序设计有所帮助。