Vartec的cURL方案对我来说并不奏效。确实，由于我的特殊问题，它有了轻微的改进。

例如,

当服务器上有重定向(比如当你试图保存facebook的个人资料图像)，你将需要以下选项集:

curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);

完整的解决方案是:

$ch = curl_init('http://example.com/image.php');
$fp = fopen('/my/folder/flower.gif', 'wb');
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_exec($ch);
curl_close($ch);
fclose($fp);

参见file()PHP手册:

$url    = 'http://mixednews.ru/wp-content/uploads/2011/10/0ed9320413f3ba172471860e77b15587.jpg';
$img    = 'miki.png';
$file   = file($url);
$result = file_put_contents($img, $file)

使用PHP的函数copy():

copy('http://example.com/image.php', 'local/folder/flower.jpg');

注意:这需要allow_url_fopen

$content = file_get_contents('http://example.com/image.php');
file_put_contents('/my/folder/flower.jpg', $content);

如果allow_url_fopen设置为true:

$url = 'http://example.com/image.php';
$img = '/my/folder/flower.gif';
file_put_contents($img, file_get_contents($url));

否则使用cURL:

$ch = curl_init('http://example.com/image.php');
$fp = fopen('/my/folder/flower.gif', 'wb');
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_exec($ch);
curl_close($ch);
fclose($fp);

Vartec的cURL方案对我来说并不奏效。确实，由于我的特殊问题，它有了轻微的改进。

例如,

当服务器上有重定向(比如当你试图保存facebook的个人资料图像)，你将需要以下选项集:

curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);

完整的解决方案是:

$ch = curl_init('http://example.com/image.php');
$fp = fopen('/my/folder/flower.gif', 'wb');
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_exec($ch);
curl_close($ch);
fclose($fp);