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php正则提取图片地址

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Release： 2016-06-13 09:39:58
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 最近在开发程序的时候需要获取提取内容中的图片地址，这里简单分享下方法，需要的朋友可以参考下

迷上了正则，不断尝试着新花招，首先感谢TNA 的非完全输出RSS，然后再次感谢SH的强迫性学习。没有TNA，我不会去看正则，更不知道世界上有种这么牛的表达式；不是SH的死活说他不懂不知道，我也不会硬着头皮去琢磨，去改进。达到同一个目的，正则的表达方式可以不唯一，没有做不到，只有你没想到。可以这样说吧，正则就是玩设定规律，我大爱这种东西。没有比设定规律筛选东西更让我兴奋、感到awesome的了。   分享一下在php环境下使用正则提取图片地址的一些小心得：   图片网址规范的html代码无非就是   代码如下: 囧4      囧1和囧2是非必需的，若要通过XHTML认证囧4、囧5、囧6必不可少，囧3是核心内容，当然就不能少了。   就正则谈正则的话，我写出的最短匹配是    代码如下: (?
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