php正则替换问题

WBOY
Release: 2016-06-23 13:48:02
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//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 );
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回复讨论(解决方案)

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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版主

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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结果都为空了。。。

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		
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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>
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]+>[^]*微信号[^]*]+>匹配到的结果是
或直接搜索微信号:
怎么匹配到span标签(匹配到微信号所在的最近的标签)?

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