Question

PHP怎么提取内容编辑器里面的图片。

<div align="center"><img alt="北京自助透析患者：我们只想悄悄地活着(组图)" border="1" style="border-right: #000 1px solid; border-top: #000 1px solid; border-left: #000 1px solid; border-bottom: #000 1px solid" src="/uploadfile/2009/0410/20090410055400652.jpg" /></div>

如上面的图片，怎么写个PHP把地址提取出来。

原来是这样子:$pattern ='/<img.*?src=(.+?)(\s|>)/is';
可是我提取出来的路径确是：uploadfile2009041020090410055400652.jpg
少了“/”这个符号。。

Answer 1

代码如下：

效果图：

Answer 2

$pattern = '/<img.*?src=\s*?"?([^"\s]+)(?!\/>)"?\s*?/is'

Answer 3

直接用php正则写更好，就不用转这个了。例子：

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<?php
$str = file_get_contents("<a href="http://www.27.cn/kutu/2475/1613221.html"" target="_blank">http://www.27.cn/kutu/2475/1613221.html"</a>);
<a href="https://www.baidu.com/s?wd=var_dump&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1d9nvf3PHF9PhDknH0LuHRz0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6K1TL0qnfK1TL0z5HD0IgF_5y9YIZ0lQzqlpA-bmyt8mh7GuZR8mvqVQL7dugPYpyq8Q1cvn1bLPjm4nHR4rjn3nWmYPf" target="_blank" class="baidu-highlight">var_dump</a>(gPic_Url($str));

//提取URL
function gFile_Url($content){
<a href="https://www.baidu.com/s?wd=preg_match_all&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1d9nvf3PHF9PhDknH0LuHRz0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6K1TL0qnfK1TL0z5HD0IgF_5y9YIZ0lQzqlpA-bmyt8mh7GuZR8mvqVQL7dugPYpyq8Q1cvn1bLPjm4nHR4rjn3nWmYPf" target="_blank" class="baidu-highlight">preg_match_all</a>("'<\s*a\s.*?href\s*=\s*([\"\'])?(?(1)(.*?)\\1|([^\s\>]+))[^>]*>?(.*?)</a>'isx",$content,$links);
while(list($key,$val) = each($links[2])) {
if(!empty($val))
$match[] = $val;
}
while(list($key,$val) = each($links[3])) {
if(!empty($val))
$match[] = $val;
}
return $match;
}
//提取图片
function gPic_Url($content){
$pattern="/<[img|IMG].*?src=[\'|\"](.*?(?:[\.gif|\.jpg]))[\'|\"].*?[\/]?>/";//正则
<a href="https://www.baidu.com/s?wd=preg_match_all&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1d9nvf3PHF9PhDknH0LuHRz0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6K1TL0qnfK1TL0z5HD0IgF_5y9YIZ0lQzqlpA-bmyt8mh7GuZR8mvqVQL7dugPYpyq8Q1cvn1bLPjm4nHR4rjn3nWmYPf" target="_blank" class="baidu-highlight">preg_match_all</a>($pattern,$content,$match);//匹配图片
return $match[1];//返回所有图片的路径
}
?>