upyun图片fetch的简单封装

php代码：

<?php
header("Content-type: text/html; charset=utf-8");
require_once(&#39;./upyun.class.php&#39;);
$upyun = new UpYun(&#39;空间&#39;, &#39;账户&#39;, &#39;密码&#39;);
$root = &#39;根目录&#39;;

function microtime_float()
{
   list($usec, $sec) = explode(" ", microtime());
   $s =  ((float)$usec + (float)$sec);
   return  str_replace(&#39;.&#39;,&#39;&#39;,$s);
}
function fetch($u){
	try {
	    global $upyun,$root;
	    $fh = file_get_contents($u);
		//$fh = &#39;var newsClose = &#39;.$fh;
		$imgPath = $root.&#39;/&#39;.date(&#39;Y&#39;).&#39;/&#39;.date(&#39;m&#39;).&#39;/&#39;.date(&#39;d&#39;).&#39;/&#39;.microtime_float().&#39;.png&#39;;
		
		//die();

	    $rsp = $upyun->writeFile($imgPath, $fh, True);   // 上传图片，自动创建目录
		return $imgPath;
	    //fclose($fh);
	    
	}
	catch(Exception $e) {
	    echo $e->getCode();
	    echo $e->getMessage();
	}
	
}
fetch(&#39;http://res.fuliqu.com/bbs/upload/forum/cj/2014/03/14/13947880739402.png&#39;);