Download a remote file to a local file

gistfile1.php

<?php

/**
 * Download a remote file to a local file
 *
 * @param string $url URL to remote file
 * @param string $localPathToFile Absolute path to local file where it will be saved
 * @return boolean True if file saved successfully
 */
function downloadFile($url, $localPathToFile) {
	$savedSuccessfully = false;
	$remoteFile = fopen($url, 'rb');
	if ($remoteFile) {
		$localFile = fopen($localPathToFile, 'wb');

		if ($localFile) {
			while (!feof($remoteFile)) {
				fwrite($localFile, fread($remoteFile, 1024 * 8), 1024 * 8);
			}

			fclose($localFile);

			$savedSuccessfully = true;
		}

		fclose($remoteFile);
	}

	return $savedSuccessfully;
}