`]*?\/?\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 $match[1]; （ps：t不错的php q扣峮：276167802，验证：csl） /*php正则替换图片img标记中的任意属性*/ //1、将src=/uploads/images/20100516000.jpg替换为src=/uploads/uc/images/20100516000.jpg) print preg_replace('/()/i',\${1}uc/images/\${3},$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); ?> `