Method to convert signed integer to unsigned integer in PHP_PHP Tutorial

How to convert signed integer to unsigned integer in PHP

This article mainly introduces the method of converting signed integer to unsigned integer in PHP. The conversion method is very simple. This article directly gives the conversion method. Friends who need it can refer to it

In a short address project, according to the mutual mapping algorithm of six-digit characters and IDs, when the ID exceeds 2147483647, the ID mapped by the six-digit short address becomes a signed integer.

The code is as follows:

ID > six characters > mapping ID

　ID: 2147483644 > TfffVQ > 2147483644

　ID: 2147483645 > efffVQ > 2147483645

ID: 2147483646 > NfffVQ > 2147483646

ID: 2147483647 > ffffVQ > 2147483647

　ID: 2147483648 > nnnnnu > -2147483648

ID: 2147483649 > dnnnnu > -2147483647

　ID: 2147483650 > rnnnnu > -2147483646

Need to convert signed integer to unsigned integer: (float) sprintf('%u', $id)

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