Update file write logic

1.2.7

Improve the write I/O operation.

1.2.6

Fixed incorrect variables

1.2.5

Fixed incorrect variables

Added params to force padding for IPv4 or IPv6

1.2.4

Added params to force padding for IPv4 or IPv6

1.2.3

Fixed hex padding for IPv6.

Merged pull request to fix PHP 8 issue with preg_match

Merge pull request #2 from canonex/master

Php 8.1 preg_match(): Passing null ... is deprecated

1.2.1

Fixed hexadecimal length.

1.2.0

Added feature to convert IP numbers into 16 digits hexadecimal.

1.1.0

Added IPv6 supports.

1.0.0

First release.