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<?php class coupon { CONST MIN_LENGTH = 8; /** * MASK FORMAT [XXX-XXX] * 'X' this is random symbols * '-' this is separator * * @return string * @throws Exception */ static public function generate($options = []) { // to accept options as function arguments like on README if (!is_array($options) && func_num_args() > 0) { $keys = ['length', 'prefix', 'suffix', 'letters', 'numbers', 'symbols', 'mixed_case', 'mask']; $opt = []; foreach (func_get_args() as $key => $value) { $opt[ $keys[ $key ] ] = $value; } $options = $opt; } $length = (isset($options['length']) ? filter_var($options['length'], FILTER_VALIDATE_INT, ['options' => ['default' => self::MIN_LENGTH, 'min_range' => 1]]) : self::MIN_LENGTH ); $prefix = (isset($options['prefix']) ? $options['prefix'] : '' ); var_dump($options); $suffix = (isset($options['suffix']) ? self::cleanString(filter_var($options['suffix'], FILTER_SANITIZE_STRING)) : '' ); $useLetters = (isset($options['letters']) ? filter_var($options['letters'], FILTER_VALIDATE_BOOLEAN) : true ); $useNumbers = (isset($options['numbers']) ? filter_var($options['numbers'], FILTER_VALIDATE_BOOLEAN) : false ); $useSymbols = (isset($options['symbols']) ? filter_var($options['symbols'], FILTER_VALIDATE_BOOLEAN) : false ); $useMixedCase = (isset($options['mixed_case']) ? filter_var($options['mixed_case'], FILTER_VALIDATE_BOOLEAN) : false ); $mask = (isset($options['mask']) ? filter_var($options['mask'], FILTER_SANITIZE_STRING) : false ); $uppercase = ['Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', 'Z', 'X', 'C', 'V', 'B', 'N', 'M']; $lowercase = ['q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', 'z', 'x', 'c', 'v', 'b', 'n', 'm']; $numbers = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]; $symbols = ['`', '~', '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '-', '_', '=', '+', '\\', '|', '/', '[', ']', '{', '}', '"', "'", ';', ':', '<', '>', ',', '.', '?']; $characters = []; $coupon = ''; if ($useLetters) { if ($useMixedCase) { $characters = array_merge($characters, $lowercase, $uppercase); } else { $characters = array_merge($characters, $uppercase); } } if ($useNumbers) { $characters = array_merge($characters, $numbers); } if ($useSymbols) { $characters = array_merge($characters, $symbols); } if ($mask) { for ($i = 0; $i < strlen($mask); $i++) { if ($mask[$i] === 'X') { $coupon .= $characters[mt_rand(0, count($characters) - 1)]; } else { $coupon .= $mask[$i]; } } } else { for ($i = 0; $i < $length; $i++) { $coupon .= $characters[mt_rand(0, count($characters) - 1)]; } } return $prefix . $coupon . $suffix; } /** * @param int $maxNumberOfCoupons * @param array $options * @return array */ static public function generate_coupons($maxNumberOfCoupons = 1, $options = []) { $coupons = []; for ($i = 0; $i < $maxNumberOfCoupons; $i++) { $temp = self::generate($options); $coupons[] = $temp; } return $coupons; } /** * @param int $maxNumberOfCoupons * @param $filename * @param array $options */ static public function generate_coupons_to_xls($maxNumberOfCoupons = 1, $filename, $options = []) { $filename = (empty(trim($filename)) ? 'coupons' : trim($filename)); header('Content-Type: application/vnd.ms-excel'); echo 'Coupon Codes' . "\t\n"; for ($i = 0; $i < $maxNumberOfCoupons; $i++) { $temp = self::generate($options); echo $temp . "\t\n"; } header('Content-disposition: attachment; filename=' . $filename . '.xls'); } /** * Strip all characters but letters and numbers * @param $string * @param array $options * @return string * @throws Exception */ static private function cleanString($string, $options = []) { $toUpper = (isset($options['uppercase']) ? filter_var($options['uppercase'], FILTER_VALIDATE_BOOLEAN) : false); $toLower = (isset($options['lowercase']) ? filter_var($options['lowercase'], FILTER_VALIDATE_BOOLEAN) : false); $striped = preg_replace('/[^a-zA-Z0-9]/', '', trim($string)); // make uppercase if ($toLower && $toUpper) { throw new Exception('You cannot set both options (uppercase|lowercase) to "true"!'); } else if ($toLower) { return strtolower($striped); } else if ($toUpper) { return strtoupper($striped); } else { return $striped; } } } echo coupon::generate(['length' => 6, 'prefix' => ”XCS-”]);