php内容处理正则

$content = preg_replace(“/]*>/i”, “”, $content);
$content = preg_replace(“/<\/a>/i”, “”, $content);
$content = preg_replace(“/]*>/i”, “”, $content);
$content = preg_replace(“/<\/div>/i”, “”, $content);

$content = preg_replace(“//i”, “”, $content);//注释内容

$content = preg_replace(“/style=.+?[‘|\”]/i”,”,$content);//去除样式
$content = preg_replace(“/class=.+?[‘|\”]/i”,”,$content);//去除样式
$content = preg_replace(“/id=.+?[‘|\”]/i”,”,$content);//去除样式
$content = preg_replace(“/lang=.+?[‘|\”]/i”,”,$content);//去除样式
$content = preg_replace(“/width=.+?[‘|\”]/i”,”,$content);//去除样式
$content = preg_replace(“/height=.+?[‘|\”]/i”,”,$content);//去除样式
$content = preg_replace(“/border=.+?[‘|\”]/i”,”,$content);//去除样式
$content = preg_replace(“/face=.+?[‘|\”]/i”,”,$content);//去除样式

$content = preg_replace(“/face=.+?[‘|\”]/”,”,$content);//去除样式 只允许小写 正则匹配没有

/*PHP正则提取图片img标记中的任意属性*/
$str = ‘

PHP正则提取或更改图片img标记中的任意属性‘;
//1、取整个图片代码
preg_match(‘/<\s*img\s+[^>]*?src\s*=\s*(\’|\”)(.*?)\\1[^>]*?\/?\s*>/i’,$str,$match);
echo $match[0];
//2、取width
preg_match(‘//i’,$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 $match[1];
/*PHP正则替换图片img标记中的任意属性*/
//1、将src=”/uploads/images/20100516000.jpg”替换为src=”/uploads/uc/images/20100516000.jpg”)
print preg_replace(‘/()/i’,”\${1}uc/images/\${3}”,$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);