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How to replace img in php

藏色散人
藏色散人Original
2020-11-04 09:07:321956browse

php替换img的方法:首先通过PHP正则表达式提取图片img标记中的任意属性;然后将img src替换为新的地址即可。

How to replace img in php

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php正则表达式替换图片地址

代码如下:


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('/<\\s*img\\s+[^>]*?src\\s*=\\s*(\\'|\\")(.*?)\\\\1[^>]*?\\/?\\s*>/i',$str,$match); echo $match[0]; //2、取width preg_match('//i',$str,$match); echo $match[1]; //3、取height preg_match('//i',$str,$match); echo $match[1]; //4、取src preg_match('//i',$str,$match); echo $match[1]; /*PHP正则替换图片img标记中的任意属性*/ //1、将src="/uploads/images/20100516000.jpg"替换为src="/uploads/uc/images/20100516000.jpg") print preg_replace('/()/i',"\\${1}uc/images/\\${3}",$str); echo "
"; //2、将src="/uploads/images/20100516000.jpg"替换为src="/uploads/uc/images/20100516000.jpg",并省去宽和高 print preg_replace('/(/i',"\\${1} \\${2}uc/images/\\${3}>",$str); ?>

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