推荐回答（3个）
php正则表达式匹配title的代码如下：
$file = "
百度知道——提问问题";
preg_match_all('/
(.*)<\/title>/i',$file,$content); </p>
<p>echo '<pre>';</p>
<p>print_r($content);</p>
<p>结果：</p>
<p><img loading="lazy" class="ikqb_img" src="/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2Fb64543a98226cffc743c05d4be014a90f603ea46%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto" esrc="https://iknow-pic.cdn.bcebos.com/b64543a98226cffc743c05d4be014a90f603ea46"></p></p>
</div>
</div>
<div class="clear"></div>
</div>
<div class="wdhdnr">
<div class="huidanrtop">
<div class="wdhuidaxinx">
<div class="wdhuidaxm">回答2：</div>
</div>
</div>
<div class="clear"></div>
<div class="wdhuidanrmid">
<div class="zuijiacont">
<p><?php<br>$s = '<a title="abc.jpg" href="fefefe"><br> <img src="xsdsd.jpg" alt=\'xxsd.jpg\' title="eeerrfff" /><br> </a><br> <img src="xsdsd.jpg" alt="eeerrfff.pngxxsd" title="xxsd.jpg" />';<br>$pat = '/(<img.*?)((alt|title)=[\'"]+[^\'|"]*\.(jpg|gif|png|bmp)[\'"]+)/';<br>echo preg_replace($pat , '$1' , $s);<p><br></p> <p><br></p> <p></p></p>
</div>
</div>
<div class="clear"></div>
</div>
<div class="wdhdnr">
<div class="huidanrtop">
<div class="wdhuidaxinx">
<div class="wdhuidaxm">回答3：</div>
</div>
</div>
<div class="clear"></div>
<div class="wdhuidanrmid">
<div class="zuijiacont">
<p><p>$file = "<title>百度知道——提问问题";
preg_match_all('/
(.*)<\/title>/i',$file,$content); </p>
<p>echo '<pre>';</p>
<p>print_r($content);</p>
<p>结果：</p>
<p><img loading="lazy" class="ikqb_img" src="/picurl?url=https%3A%2F%2Fiknow-pic.cdn.bcebos.com%2F5ab5c9ea15ce36d3deabff853ff33a87e850b1d3%3Fx-bce-process%3Dimage%252Fresize%252Cm_lfit%252Cw_600%252Ch_800%252Climit_1%252Fquality%252Cq_85%252Fformat%252Cf_auto" esrc="https://iknow-pic.cdn.bcebos.com/5ab5c9ea15ce36d3deabff853ff33a87e850b1d3"></p></p>
</div>
</div>
<div class="clear"></div>
</div>
</div>
</div>
<div class="wendaright">
<div class="wdluluerwema">
<div class="wdxgwttop">相关问答</div>
<div class="wdxgwtnr">
</div>
<div class="clear"></div>
</div>
<!-- 其他随机问答['id'=>alphaID($like['zid'])] -->
<div class="wdluluerwema">
<div class="wdxgwttop">最新问答</div>
<div class="wdxgwtnr">
<div class="wdxgwtcont">
<div class="wdxgtitle"><a href="https://13l.net/l/5963868.html">nike,adidas,reebok,puma,diadona分别都是哪国的品牌？</a></div>
</div>
<div class="wdxgwtcont">
<div class="wdxgtitle"><a href="https://13l.net/l/814538569663680252.html">志强E3 1230 V2 应该配什么主板？</a></div>
</div>
<div class="wdxgwtcont">
<div class="wdxgtitle"><a href="https://13l.net/l/1947727838865093348.html">怎么把谷歌的经纬度转换成百度的经纬度</a></div>
</div>
<div class="wdxgwtcont">
<div class="wdxgtitle"><a href="https://13l.net/l/220515915.html">一级建造师的报考条件中“取得工程类或工程经济类大学专科学历，工作满6年。。。”如何理解？</a></div>
</div>
<div class="wdxgwtcont">
<div class="wdxgtitle"><a href="https://13l.net/l/1382426142875904700.html">一级建造师报考条件:1.取得工程类或工程经济类大学专科学历,工作满6年</a></div>
</div>
<div class="wdxgwtcont">
<div class="wdxgtitle"><a href="https://13l.net/l/1955671770866946028.html">tt语音怎么+修改游戏</a></div>
</div>
<div class="wdxgwtcont">
<div class="wdxgtitle"><a href="https://13l.net/l/296892687.html">激光点痣会留疤吗？</a></div>
</div>
<div class="wdxgwtcont">
<div class="wdxgtitle"><a href="https://13l.net/l/374942498350700404.html">你好，我想问一下，我们和平离婚了，一人带一个孩子，协议上说可以探望孩子，对方不让看，我该怎么办？</a></div>
</div>
<div class="wdxgwtcont">
<div class="wdxgtitle"><a href="https://13l.net/l/603075107.html">事业单位招聘专业技术人员与工勤人员有什么区别?</a></div>
</div>
<div class="wdxgwtcont">
<div class="wdxgtitle"><a href="https://13l.net/l/218199583.html">皮肤很痒,且有些刺痛:一抓就会起鸡皮疙瘩,且越抓越痒,好几天了,这是怎么回事哦?</a></div>
</div>
</div>
</div>
</div>
<div class="clear"></div>
<div class="footer">
<!-- 移动底部导航 -->
<div class="fanhuitop"><a href="#top" ref="nofollow"><img src="https://13l.net/static/old/img/fhtop.png" alt="返回顶部" title="返回顶部"></a></div>
<div class="dibu">
<div class="dibu">
</div>
</div>
<div class="banquan">
<p>内容全部来源于网络收集，如有侵权，请联系网站删除：QQ：24596024</p>
</div>
</div>
</div>
</div>
<script>
var _hmt = _hmt || [];
(function() {
var hm = document.createElement("script");
hm.src = "https://hm.baidu.com/hm.js?de17be6dbd20544dd6483cc235b540f9";
var s = document.getElementsByTagName("script")[0];
s.parentNode.insertBefore(hm, s);
})();
</script>
</body>
</html>
