How Can I Save JPEG Images from PHP URLs with and without `allow_url_fopen`?

Saving JPEG Images from PHP URLs

When encountering the need to retrieve and store images from external URLs within a PHP environment, various techniques come into play. One common challenge arises when trying to preserve JPEG image files from a specified PHP URL.

To effectively capture these images and store them on your local PC, several approaches can be employed. One method involves utilizing the allow_url_fopen configuration. If this setting is enabled, you can directly retrieve the image contents and save them locally:

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

In this example, the image is fetched from the specified URL (in this case, http://example.com/image.php) and stored as flower.gif within the my/folder directory on your local computer.

However, if allow_url_fopen is disabled for security reasons, an alternative technique involving cURL may be implemented:

$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);

Utilizing cURL, the image is once again obtained from the URL and saved as flower.gif in the specified local directory. This method provides a robust and reliable solution when working with external image URLs.

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