//1,如何去掉出现“微信号”及紧邻的标签对,如下代码中去掉这块内容:<div>这里有很多其他字符、表单等等....微信号...这里有很多其他字符、表单等等</div> $content = "0000<div>111<div>222<div>这里有很多其他字符、表单等等....微信号...这里有很多其他字符、表单等等</div>222</div>111</div>0000"; //2,如何去掉出现qrcode_for_gh_2ff16e7c9789_258.jpg的图片 $content = '<img style="max-width:90%" title="" alt="" src="http://www.aabbcc.com/upload/kdidd08983.jpg"><img style="max-width:90%" title="" alt="" src="http://www.aabbcc.com/upload/qrcode_for_gh_2ff16e7c9789_258.jpg">'; // $content = preg_replace('/<img (.*?)src=["\']http[s]?:\/\/www\.aabbcc\.com\/upload\/qrcode_for_gh_2ff16e7c9789_258\.jpg["\'](.*?) alt="php正则替换问题" >/is', '', $content); var_dump( $content );
1、echo preg_replace('/<[^>]+>[^<>]*微信号[^<>]*<[^>]+>/u', '', $content);2、$content = preg_replace('/<img ([^ alt="php正则替换问题" >]+)src=["\']http[s]?:\/\/www\.aabbcc\.com\/upload\/qrcode_for_gh_2ff16e7c9789_258\.jpg["\'](.*?)>/is', '', $content);
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1、echo preg_replace('/<[^>]+>[^<>]*微信号[^<>]*<[^>]+>/u', '', $content);2、$content = preg_replace('/<img ([^ alt="php正则替换问题" >]+)src=["\']http[s]?:\/\/www\.aabbcc\.com\/upload\/qrcode_for_gh_2ff16e7c9789_258\.jpg["\'](.*?)>/is', '', $content);
哪个为空了?
哪个为空了?
$content = "0000<div>111<div>222<div>这里有很多其他字符、表单等等....微信号...这里有很多其他字符、表单等等</div>222</div>111</div>0000"; $content = preg_replace('/<[^>]+>[^<>]*微信号[^<>]*<[^>]+>/', '', $content);// 去掉修饰符就可以了
哪个为空了?
<div><span style="max-width:90%"Microsoft Yahei', Simsun; line-height: 21px;"> <font style="word-wrap: break-word; background-color: yellow;">扫描二维码</font> 或直接搜索微信号:<font style="word-wrap: break-word; background-color: yellow;"> mcq28tui</font> </span></div>