如何使用php curl将远程图像保存到文件？

Question

我想使用php curl将远程图像保存到文件,但文件永远不会被保存!任何人都可以帮助我如何解决这个问题？图像文件永远不会被创建,但echo $ returned_content有数据!

 <?
    $returned_content = get_data('http://somesite.com/43534545345dfsdfdsfdsfds.jpg');

    echo $returned_content;

    $fp = fopen('43534545345dfsdfdsfdsfds.jpg', 'w');
    fwrite($fp, $returned_content);
    fclose($fp);


    /* gets the data from a URL */
    function get_data($url) {
        $ch = curl_init();
        $timeout = 5;
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
        $data = curl_exec($ch);
        curl_close($ch);
        return $data;
    }




    ?>

Answer 1

<?php         
$ch = curl_init('http://www.example/2012/09/flower.jpg');
$fp = fopen('/localProject/imagesFolder/newname.jpg', 'wb');
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_exec($ch);
curl_close($ch);
fclose($fp);     
?>