February 11, 2011 
Definition:
function download_url( $url, $timeout = 300 ) {}
Downloads a url to a local temporary file using the WordPress HTTP Class.
Please note, That the calling function must unlink() the file.
Parameters
- string $url: the URL of the file to download
- int $timeout: The timeout for the request to download the file default 300 seconds
Return values
returns:WP_Error on failure, string Filename on success.
Source code
function download_url( $url, $timeout = 300 ) {
//WARNING: The file is not automatically deleted, The script must unlink() the file.
if ( ! $url )
return new WP_Error('http_no_url', __('Invalid URL Provided.'));
$tmpfname = wp_tempnam($url);
if ( ! $tmpfname )
return new WP_Error('http_no_file', __('Could not create Temporary file.'));
$response = wp_remote_get( $url, array( 'timeout' => $timeout, 'stream' => true, 'filename' => $tmpfname ) );
if ( is_wp_error( $response ) ) {
unlink( $tmpfname );
return $response;
}
if ( 200 != wp_remote_retrieve_response_code( $response ) ){
unlink( $tmpfname );
return new WP_Error( 'http_404', trim( wp_remote_retrieve_response_message( $response ) ) );
}
return $tmpfname;
}
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