PHP正则表达式抓取某个标签的特定属性值的方法

//$html-被查找的字符串 $tag-被查找的标签 $attr-被查找的属性名 $value-被查找的属性值function get_tag_data($html,$tag,$attr,$value){$regex = "/<$tag.*?$attr=/".*?$value.*?/".*?>(.*?)<//$tag>/is";echo $regex."<br>";preg_match_all($regex,$html,$matches,PREG_PATTERN_ORDER);return $matches[1];}//返回值为数组 查找到的标签内的内容

header("Content-type: text/html; charset=utf-8");$temp = '<ul class="noul clearfix"><li class="w w0"><a class="i i0 fc01 h" hidefocus="true" href="http://phpway.blog.163.com/">首页</a></li><li class="w w1 selected"><a class="i i1 fc01 h" hidefocus="true" href="http://phpway.blog.163.com/blog/">日志</a></li><li class="w w9"><a class="i i9 fc01 h" hidefocus="true" href="http://phpway.blog.163.com/loftarchive/">LOFTER</a></li><li class="w w2"><a class="i i2 fc01 h" hidefocus="true" href="http://phpway.blog.163.com/album/">相册</a></li><li class="w w5"><a class="i i5 fc01 h" hidefocus="true" href="http://phpway.blog.163.com/friends/">博友</a></li><li class="w w6"><a class="i i6 fc01 h" hidefocus="true" href="http://phpway.blog.163.com/profile/">关于我</a></li></ul>';$result = get_tag_data($temp,"a","class","fc01");var_dump($result);

array(6) { [0]=> string(6) "首页" [1]=> string(6) "日志" [2]=> string(6) "LOFTER" [3]=> string(6) "相册" [4]=> string(6) "博友" [5]=> string(9) "关于我" }

array(6) {[0]=>string(6) "首页"[1]=>string(6) "日志"[2]=>string(6) "LOFTER"[3]=>string(6) "相册"[4]=>string(6) "博友"[5]=>string(9) "关于我"}