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<?php /** * LiteSpeed String Operator Library Class * * @since 1.3 */ namespace LiteSpeed; defined('WPINC') || exit(); class Str { /** * Generate random string * * @since 1.3 * @access public * @param int $len Length of string * @param int $type 1-Number 2-LowerChar 4-UpperChar * @return string */ public static function rrand($len, $type = 7) { mt_srand((int) ((float) microtime() * 1000000)); switch ($type) { case 0: $charlist = '012'; break; case 1: $charlist = '0123456789'; break; case 2: $charlist = 'abcdefghijklmnopqrstuvwxyz'; break; case 3: $charlist = '0123456789abcdefghijklmnopqrstuvwxyz'; break; case 4: $charlist = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'; break; case 5: $charlist = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ'; break; case 6: $charlist = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; break; case 7: $charlist = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'; break; } $str = ''; $max = strlen($charlist) - 1; for ($i = 0; $i < $len; $i++) { $str .= $charlist[mt_rand(0, $max)]; } return $str; } }