php正則提取html圖片(img)src地址與任意屬性
阿新 • • 發佈:2019-01-27
簡單版:
詳細版:
<?php header("Content-Type: text/html;charset=utf-8"); $str = '<div class="ui-block-a" align="center"> <a href="online-39.html"><img class="lazy" width="131" height="177" src="http://www.smsyun.com/uploads/image/20140620/2014052010425.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'; } ?>
詳細版:
<?php /*PHP正則提取圖片img標記中的任意屬性*/ $str = '<center><img src="/uploads/images/20100516000.jpg" height="120" width="120"><br />PHP正則提取或更改圖片img標記中的任意屬性</center>'; //1、取整個圖片程式碼 preg_match('/<\s*img\s+[^>]*?src\s*=\s*(\'|\")(.*?)\\1[^>]*?\/?\s*>/i',$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 $match[1]; /*PHP正則替換圖片img標記中的任意屬性*/ //1、將src="/uploads/images/20100516000.jpg"替換為src="/uploads/uc/images/20100516000.jpg") print preg_replace('/(<img.+src=\"?.+)(images\/)(.+\.(jpg|gif|bmp|bnp|png)\"?.+>)/i',"\${1}uc/images/\${3}",$str); echo "<hr/>"; //2、將src="/uploads/images/20100516000.jpg"替換為src="/uploads/uc/images/20100516000.jpg",並省去寬和高 print preg_replace('/(<img).+(src=\"?.+)images\/(.+\.(jpg|gif|bmp|bnp|png)\"?).+>/i',"\${1} \${2}uc/images/\${3}>",$str); ?>