PHP Classes

PHP Number to Text Converter: Encode and decode numbers using character mappings

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number-converter 1.0GNU General Publi...5.4PHP 5, Text processing, Math


This class can encode and decode numbers using character mappings.

It can take a given number and encode it using a given list of characters to map the number.

The numbers may be encoded using pre-defined characters sets like upper or lower case letters, digits including 0 or not, and underscore or dash symbols. A custom list of characters may also be included.

The class can also do the opposite, i.e. take a previously encoded number with given character sets and decode the original number.

The class uses arbitrary precision math to allow for very long numbers to be converted.

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One way to store large numbers with less digits is to represent than in a base higher than 10.

This means that it would use other characters besides 0 to 9 to represent the number in higher base.

This class can convert decimal numbers to be encoded with custom lists of characters to represent their "digits".

It uses arbitrary precision math, so it can represent arbitrary long decimal numbers with much less characters.

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use Utils\NumConverter;


$converter = new NumConverter(
NumConverter::USE_NUMS_WO_ZERO |
NumConverter::USE_LOWERCASE |

$converter->addCustom( [
'_', '-', '%', '@', '+', '=', '!', ':', '~', ';', '(', ')', '^', '#', '[', ']', '{', '}'
] );

$number = bcmul( PHP_INT_MAX, 7 ); // 64563604257983430649

$encoded = $converter->encode( $number ); // 7@U1k6k6^-S

$decoded = $converter->decode( $encoded ); // 64563604257983430649

var_dump( $number, $encoded, $decoded ); die;

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Accessible without login Plain text file example.php Example Example usage NumConverter class
Plain text file NumConverter.php Class NumConverter PHP class

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