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HomeBackend DevelopmentPHP Tutorialphp批量下载图片,网上找的代码,不好使



function project_statistics(){    	echo "11111";    	$url = "http://www.xxx.com:81/upload/image";  		$content=file_get_contents($url);  		$reg="/<img  src="/static/imghwm/default1.png"  data-src="'.basename($url).'"  class="lazy" .*?src=\"(.*?)\".*? alt="php批量下载图片,网上找的代码,不好使" >/";  		  		preg_match_all($reg,$content,$matches);  		  		$path = '../download/img';  		if(!file_exists($path)){  		    mkdir($path, 0777);  		}  		function downImage($url,$filename="") {  		    if($url=="") return false;  		  		    if($filename=="") {  		        $ext=strrchr($url,".");  		        if($ext!=".gif" && $ext!=".jpg" && $ext!=".png" && $ext!="jpeg") return false;  		        $filename=date("YmdHis").$ext;  		    }  		  		    ob_start();  		    //make file that output from url goes to buffer  		    readfile($url);  		    //file_get_contents($url);  这个方法不行的!!!只能用readfile  		    $img = ob_get_contents();  		    ob_end_clean();  		  		    $fp=@fopen($filename, "a");//append  		    fwrite($fp,$img);  		      		    fclose($fp);  		  		    return $filename;  		    			  }		for($i = 0;$i < count($matches[1]);$i ++){  		      		    /*explode 		    $url_arr[$i] = explode('/', $matches[1][$i]); 		    $last = count($url_arr[$i])-1; 		    */  		      		    //strrchr     		    $filename = strrchr($matches[1][$i], '/');  		      		    downImage($matches[1][$i],$path.$filename);  		    //downImage($matches[1][$i],$path.'/'.$url_arr[$i][$last]);  		}    }

求教 ,谢谢。  就是想把上传到服务器上的图片,都下载本地。这个还需要改


回复讨论(解决方案)

你给出的代码是采集目标网页上所有的图片标签,并下载之。。

你如果想下载上传到服务器上的图片,那你可以尝试通过上述代码中的downImage函数,把服务器上图片的url地址传入下载之。

能给例子否?  呵呵 

有?片url??
循?所有url,然後使用file_get_contents下?就可以了。

例如:
$url = "http://www.abc.com/1.jpg';
$c = file_get_contents($url);
file_put_contents(basename($url), $c, true);




照你的写法做了,刷新浏览器, 是空白。 是不是还要配合什么函数才能下载下来? 谢谢
另外还有个疑问,如果多个图片的话 ,它是把所有的地址都放到一下类似迅雷的下载列表吗?

我写的是
$url = "http://www.hrb.com:81/upload/image/1.jpg";
$c = file_get_contents($url);
file_put_contents(basename($url), $c, true); 

die();

附上真实图片地址:

?行後,在本地同?目??找到1.jpg的。

$url = "https://ss0.bdstatic.com/5a21bjqh_Q23odCf/static/superplus/img/logo_white_ee663702.png";$c = file_get_contents($url);file_put_contents(basename($url), $c, true); echo '<img  src="/static/imghwm/default1.png"  data-src="'.basename($url).'"  class="lazy"  .basename($url).'" alt="php批量下载图片,网上找的代码,不好使" >';



有点糊涂了,本地同级目录,我本机没有upload/image目录啊 
这个怎么找, 它的运行会自动在客户端的  C盘 或D盘下建个文件夹,然后把1.jpg放里面?



有点糊涂了,本地同级目录,我本机没有upload/image目录啊 
这个怎么找, 它的运行会自动在客户端的  C盘 或D盘下建个文件夹,然后把1.jpg放里面?


就是你那?php的目?。?php文件同一?的。



看到文件了, 感觉有点像移动文件。移动到另外一个目录下, 能下载到我电脑上吗? 如果这些图片在网络的服务器上

比如下载到桌面, 是不是 改个参数就行了?

比如下载到桌面, 是不是 改个参数就行了?



用哪台??行??php,就只能?取到哪台?。

如果你本?就是服?器,apache也?有?限放到你桌面的。除非你?置桌面文件??apache用?可?。
然後file_put_contents那?,把路??入
file_put_contents('/桌面/'.basename($url), $c, true);




也就是说 批量下载图片、批量下载文件这样的功能, 使用上边的这些方法不太好了,是吧?

应该把整个文件夹压缩,然后给个压缩包的地址,让用户下载。  是这样吗?

如果是??客?端用?,?然zip比?好啦。


  多谢

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