简单版:
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<?php header( "Content-Type: text/html;charset=utf-8" ); $str = '<div class = "ui-block-a" align= "center" > <a href= "online-39.html" rel= "external nofollow" ><img class = "lazy" width= "131" height= "177" src= "//img.jbzj.com/file_images/game/201702/2017020716154162.jpg" /> <h3>2014年</h3></a> </div>'; $imgpreg = "/<img (.*?) src=\"(.+?)\".*?>/" ; preg_match( $imgpreg , $str , $img ); $mycount = count ( $img )-1; $imgval = $iim [ $mycount ]; if (! empty ( $imgval )){ echo $imgval ; } else { echo 'no' ; } ?> |
详细版:
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<?php /*PHP正则提取图片img标记中的任意属性*/ $str = '<center><img src="/uploads/images/2017020716154162.jpg" height="120" width="120"><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width preg_match( '/<img.+(width=\"?\d*\"?).+>/i' , $str , $match ); echo $match [1]; //3、取height preg_match( '/<img.+(height=\"?\d*\"?).+>/i' , $str , $match ); echo $match [1]; //4、取src preg_match( '/<img.+src=\"?(.+\.(jpg|gif|bmp|bnp|png))\"?.+>/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/2017020716154162.jpg") print preg_replace( '/(<img.+src=\"?.+)(images\/)(.+\.(jpg|gif|bmp|bnp|png)\"?.+>)/i' ,"\${1}uc/images/\${3}", $str ); echo "<hr/>" ; //2、将src="/uploads/images/20100516000.jpg"替换为src="/uploads/uc/images/2017020716154162.jpg",并省去宽和高 print preg_replace( '/(<img).+(src=\"?.+)images\/(.+\.(jpg|gif|bmp|bnp|png)\"?).+>/i' ,"\${1} \${2}uc/images/\${3}>", $str ); ?> |
以上这篇php正则提取html图片(img)src地址与任意属性的方法就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持服务器之家。