How to download an image with PHP?

Sup开发者_Python百科pose the url of the image is here:

http://sstatic.net/so/img/logo.png

How to download it with PHP?

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$fp = fopen('logo.png', 'w');
fwrite($fp, file_get_contents('http://sstatic.net/so/img/logo.png'));
fclose($fp);

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I would a plain file_get_contents and file_put_contents would do it

$content = file_get_contents('http://sstatic.net/so/img/logo.png')
file_put_contents('logo.png', $content);

have to be noted that with that way of doing the whole file will be stocked in memory, so you have to be careful about the memory_limit. If you need a method without puting the file in memory curl would do it.

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You can use a curl request :

public static function curlGet($url)
{
  $ch = curl_init($url);
  curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
  curl_setopt($ch, CURLOPT_HEADER, 0);
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  $content = curl_exec($ch);
  curl_close($ch);
  return $content;
}

and write the content response into a file

$fp = fopen('logo.png', 'w');
fwrite($fp, curlGet('http://sstatic.net/so/img/logo.png') );
fclose($fp);