最近的工作中经常要用到把内容中的img标签的src属性值(图片地址)读出,由于属性值没有什么规律,所以用正则表达试是个不错的办法,下面我们用php和js分别做实例分享。
要匹配的字符串:
正则表达式:
[^'"]*)['"])|(?
正则匹配输出结果:
x
image/ad1.gif
image/ad2.gif
PHP正则提取或 img 元素的 src 属性值:
代码如下 | 复制代码 |
/*PHP正则提取图片img标记中的任意属性*/ $str = ' ![]() PHP正则提取或更改图片img标记中的任意属性 //1、取整个图片代码 preg_match('/ //2、取width preg_match('/ ![]() //3、取height preg_match('/ ![]() //4、取src preg_match('/ ![]() /*PHP正则替换图片img标记中的任意属性*/ //1、将src="/uploads/images/20100516000.jpg"替换为src="/uploads/uc/images/20100516000.jpg") print preg_replace('/( ![]() "; //2、将src="/uploads/images/20100516000.jpg"替换为src="/uploads/uc/images/20100516000.jpg",并省去宽和高 print preg_replace('/( ![]() ?> |
Js正则表达式提取图片地址
代码如下 | 复制代码 |
//正则表达式 |

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