The PHP regular expression matches the IMG, and PHP is extracting or replacing any of the attributes in the image img tag.

PHP is extracting or replacing the IMG Tag property PHP regular Expression matching img, PHP is extracting or replacing any attribute in the image img tag.

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<?php/*PHP正则提取图片img标记中的任意属性*/$str = ‘<center><br />PHP正则提取或更改图片img标记中的任意属性</center>‘;//1、取整个图片代码preg_match(‘/<\s*img\s+[^>]*?src\s*=\s*(\‘|\")(.*?)\\1[^>]*?\/?\s*>/i‘,$str,$match);echo $match[0];//2、取widthpreg_match(‘//i‘,$str,$match);echo $match[1]; //3、取heightpreg_match(‘//i‘,$str,$match);echo $match[1];//4、取srcpreg_match(‘//i‘,$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);?>

The PHP regular expression matches the IMG, and PHP is extracting or replacing any of the attributes in the image img tag.