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下面这段代码怎么改成http://localhost/GetAllPic.php? url=xxx
url=后面的网址就是要提交的网址不用点提交按钮
麻烦知道的大哥直接给代码,谢了
require_once 'DownImage.class.php';
?>


下载网页中所有图片



网页URL:



//单击“提交”按钮后才有后面的图片下载处理
if($_POST['submit'] != NULL){
 $url=$_POST['url'];
//分析网页的URL,取出网页所属的主机(host)URL,因为很多图片URL是相对路径,必须在前面加上主机的URL.
$rs=parse_url($url);
$main_url = $rs['host'];$baseurl = substr($url,0,strrpos($url,'/')+1);
//读取网页内容。在使用file_get_contents函数时,后面的两个参数是可选参数,例如如果使用代理服务器来连接Internet的话,那就必须带上$context参数,代理服务器的具
//体设置在选项变量$opts中,如$opts = array('http' => array('proxy'=>'','request_fulluri'=>true))来设置代理服务器选项。一般情况下后两个参数可以省略
$opts=array('http' => array('request_fulluri'=> true));
$context = stream_context_create($opts);
$message = file_get_contents($url,false, $context);
//$reg中设置正则表达式。
$reg = "/修改一段代码/i";
//函数preg_match_all负责在字符串$message中找到所有匹配正则表达式的字符串,并将结果保存在数组$matches中,如果匹配不成功,则数组的长度为0
preg_match_all($reg,$message,$matches);
for($i=0; $i //取出所有匹配结果。$matches为多维数组,维数的多少与正则表达式中的小括弧“()”的多少有关,此处只出现了一对,则为2维数组,$matches[0]中始终保存的是匹配的字符串,而
//$matches[1]则保存的是匹配正则表达式第一对括弧所匹配的内容,此处即为图片的URL
$matches[1][$i]=strtolower($matches[1][$i]);
//如果图片为相对路径,则将其转换为全路径。有两种相对路径,第一种是,如果第一个字符为"/",那是相对于host来说的相对路径,此时只需要加上host的URL即可转化为完全的URL。
//第二种是,相对于当前页面来说的相对路径,必须加上当前URL(除了文件名外,即变量$baseurl中的值)
if(!strpos('a'.$matches[1][$i],'http')){
 if(strpos('a'.$matches[1][$i],'/')==1)
 $matches[1][$i]='http://'.$main_url.$matches[1][$i];
 else $matches[1][$i]=$baseurl.$matches[1][$i];
 }
}
//调用array_unique函数过滤重复的图片URL
$img_array=array_unique($matches[1]);
//实例化图片下载类GetImage
$Gimg = new DownImage();
for($i=0; $i //在source属性中设置下载目标图片的URL,save_to中设置图片的保存目录。调用download方法开始下载,默认为使用cURL库进行下载,以$Gimg->download('gd')的形式调用download方法时

,则使用图像函数方式进行图片下载。
$Gimg->source = $img_array[$i];
$Gimg->save_to = './data/';
$FILE = $Gimg->download();
 }
 echo "下载完毕";
}
?>




回复讨论(解决方案)

if($_POST['submit'] != NULL){
 $url=$_POST['url'];

去掉上面的if判断,直接使用$url = $GET['url']
你自己判断下$GET['url']的合法性就OK了。

function modify_build_url($params = array(), $url = NULL) {		//my_debug(current_url());		if (! $url) {			$url = $_SERVER ['REQUEST_URI'];		}		$parts = parse_url ( $url );		if (! is_array ( $parts )) {			$parts = array ();		}		if (! array_key_exists ( 'host', $parts )) {			$parts ['host'] = $_SERVER ['HTTP_HOST'];		}				$gets = array ();		if (array_key_exists ( 'query', $parts )) {			$query = $parts ['query'];			parse_str ( $query, $gets );		}		if (! is_array ( $params )) {			$params = array ();		}		if (! is_array ( $gets )) {			$gets = array ();		}		foreach ( $params as $k => $v ) {			$gets [$k] = $v;		}		$path = null;		if (array_key_exists ( 'path', $parts )) {			$path = $parts ['path'];		}		if (! $path) {			$path = "/";		}		$ret = sprintf ( "http://%s%s?%s", $parts ['host'], $path, http_build_query ( $gets ) );		return $ret;	}<form method="POST" action="<?php echo modify_build_url()?>">....</form>

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