如何在PHP中使用curl复制远程图像（不带文件扩展名）

Question

I have this code working fine with the images that having file extension.

$ch = curl_init($remoteImageUrl);
$outputImagePath = dirname(__FILE__)."/saveto/thumbnail.jpg";

$fp = fopen($outputImagePath, 'wb');
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_exec($ch);
curl_close($ch);
fclose($fp);

But this code does not work when $remoteImageUrl has no file extension. It creates an image which is 0 bytes. What is the way to solve the problem?

Answer 1

Try using FOLLOWLOCATION when dealing with extension-less files as some servers may get confused. Use the RETURNTRANSFER constant to retrieve the image contents as string.

curl_setopt($ch, CURLOPT_RETURNTRANSFER , 1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);