How can the error message "Warning: file_get_contents() [function.file-get-contents]: http:// wrapper is disabled" be resolved in PHP?

The error message "Warning: file_get_contents() [function.file-get-contents]: http:// wrapper is disabled" occurs when the use of HTTP wrapper is disabled in the PHP configuration. To resolve this issue, you can use cURL to fetch the contents of a URL instead of file_get_contents.

$url = 'http://example.com';
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$output = curl_exec($ch);
curl_close($ch);

echo $output;