upyun图片fetch的简单封装

php代码：

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

function microtime_float()
{
   list($usec, $sec) = explode(" ", microtime());
   $s =  ((float)$usec + (float)$sec);
   return  str_replace('.','',$s);
}
function fetch($u){
	try {
	    global $upyun,$root;
	    $fh = file_get_contents($u);
		//$fh = 'var newsClose = '.$fh;
		$imgPath = $root.'/'.date('Y').'/'.date('m').'/'.date('d').'/'.microtime_float().'.png';
		
		//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('http://res.fuliqu.com/bbs/upload/forum/cj/2014/03/14/13947880739402.png');