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通过正则表达式替换回调的内容标签

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[PHP]代码

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;
}

标签:正则表达式

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