*/ public static function scandir(string $filepath):array { if (!is_dir($filepath) || ($output = scandir($filepath)) === false) { throw new MDFileDoesNotExist("There is no file {$filepath}"); } return array_values(array_diff($output, ['.', '..'])); } /** * Type safe wrapper around ob_get_clean(): Gets the current buffer * contents and delete current output buffer. * * @return string */ public static function ob_get_clean():string { $output = ob_get_clean(); if ($output === false) throw new MDOutputBufferNotStarted("Output buffer was not started"); return $output; } /** * Function checking if a string starts with another. * * @param string $haystack String to check. * @param string $needle Potential start of $haystack. * * @return boolean */ public static function startsWith(string $haystack, string $needle):bool { if (substr($haystack, 0, strlen($needle)) == $needle) return true; else return false; } /** * Function checking if a string starts with any input from the input array. * * @param string $haystack String to check. * @param string[] $needles Array containing potential start values of $haystack. * * @return boolean */ public static function startsWithAny(string $haystack, array $needles):bool { $output = false; foreach ($needles as $needle) { $output = self::startsWith($haystack, $needle); if ($output == true) return $output; } return $output; } /** * Type-safe wrapper around json_encode. * * @see https://www.php.net/manual/en/function.json-encode.php * * @param array $value The value being encoded. Can be any type except a resource. * @param integer $options Bitmask consisting of JSON_FORCE_OBJECT, JSON_HEX_QUOT ... * @param integer $depth Depth of coding. * * @return string */ public static function json_encode(array $value, int $options = 0, int $depth = 512):string { $output = json_encode($value, $options, $depth); if ($output === false) throw new Exception("JSON output could not be generated"); return $output; } /** * Wrapper for curling contents from the web. * * @param string $url URL to query. * @param integer $timeout Timeout in milliseconds. * * @return string */ public static function runCurl(string $url, int $timeout = 1200):string { $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_HEADER, false); curl_setopt($curl, CURLOPT_CONNECTTIMEOUT_MS, $timeout); //timeout in seconds curl_setopt($curl, CURLOPT_TIMEOUT_MS, $timeout); //timeout in seconds curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true); curl_setopt($curl, CURLOPT_USERAGENT, 'md-bot/1.0'); $result = curl_exec($curl); curl_close($curl); if (is_bool($result)) return ""; return $result; } }