PHP正则提取图片img标记中的任意属性

<?php

/*PHP正则提取图片img标记中的任意属性*/

$str = '<p>

    123123

</p>

<p>

    <img src="/WXshop/Uploads/ueditor/image/20150604/1433387917962190.jpg" title="1433387917962190.jpg" alt="4.jpg" width="324" height="102" style="width: 324px; height: 102px;"/>

</p>

<p>

    123123

</p>';

echo $str;

 echo "<br />";

//1、取整个图片代码

preg_match('/<\s*img\s+[^>]*?src\s*=\s*(\'|\")(.*?)\\1[^>]*?\/?\s*>/i',$str,$match);

echo $match[0];

echo "<br />";

//2、取width

preg_match('/<img.+(width=\"?\d*\"?).+>/i',$str,$match);

echo $match[1];

echo "<br />";

//3、取height

preg_match('/<img.+(height=\"?\d*\"?).+>/i',$str,$match);

echo $match[1];

echo "<br />";

//4、取src

preg_match('/<img.+src=\"?(.+\.(jpg|gif|bmp|bnp|png))\"?.+>/i',$str,$match);

echo $match[1];

echo "<br />";

/*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('/(<img.+src=\"?.+)(images\/)(.+\.(jpg|gif|bmp|bnp|png)\"?.+>)/i',"\${1}uc/images/\${3}",$str);

echo "<hr/>";

echo "<br />";

//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('/(<img).+(src=\"?.+)(.+\.(jpg|gif|bmp|bnp|png)\"?).+(width=\"?.+\").+(height=\"?.+\").+(style=\"?.+\")/i',"\${1} \${2}uc/images/\${3}",$str);

?>