PHP下载图片函数

function imagefromURL($image,$rename)<br />{<br />$ch = curl_init($image);<br />curl_setopt($ch, CURLOPT_HEADER, 0);<br />curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);<br />curl_setopt($ch, CURLOPT_BINARYTRANSFER,1);<br />$rawdata=curl_exec ($ch);<br />curl_close ($ch);<br />$fp = fopen("$rename",'w');<br />fwrite($fp, $rawdata); <br />fclose($fp);<br /><p>}</p><p>

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                <p>$rename = "logo.png";</p><p>imagefromURL($url,$rename);</p><p>?></p><p>