Directly convert from Base256 -> Base16 -> Base10 using gmp_init() and unpack().
Fixed 5.3 compatibility.
No need to unpack the string. Just split it and compare the character values.
Pretty sure ord() is faster than pack('C', <int>);
This has made a huge difference in decoding performance.
Run through php-cs-fixer.
Merge pull request #7 from stephen-hill/performance-improvement

Performance Improvements