/** * Verifies if passed URL (remote file or any webpage / webresource) exists * The check is implemented via method HEAD, so no data is downloaded anyway * * @param <string> Remote URL to verify * @returns <bool> Returns true if given URL exists, false otherwise */ function file_exists_remote (string $url) : bool { $handle = curl_init(); curl_setopt_array($handle, [ CURLOPT_URL => $url, CURLOPT_SSL_VERIFYPEER => 0, CURLOPT_NOBODY => 1, CURLOPT_HEADER => 0, CURLOPT_RETURNTRANSFER => 1, CURLOPT_FOLLOWLOCATION => 1, CURLOPT_AUTOREFERER => 1 ]); curl_exec($handle); $responseCode = (int) curl_getinfo($handle, CURLINFO_RESPONSE_CODE); curl_close($handle); return $responseCode === 200; }
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