116642 Compress/Decompress Functions

I need two PHP functions coded to compress an ASCII string of length between 0 to 256 characters to a "compressed" output string of 8 (or less) alpha-numeric characters. Example: Function Compress($string) Function Decompress ($string) Usage example: $str = "This is a long string that may contain any printable ASCII characters, including but not limiting to ~!#$%':232\"()_+. and escaped characters" $cstr = compress($str) echo $cstr // This should display an alpha-numeric string of 8 char or less. $dstr = decompress($cstr) echo $dstr // This should display the same content as $str