How to convert byte array to hexadecimal in php

php method to convert byte array to hexadecimal: 1. Convert each integer into a character; 2. Convert to a string through "join($chars);"; 3. Use "bin2hex( $bin);" just convert it into a hexadecimal string.

#The operating environment of this article: Windows 7 system, PHP version 7.1, Dell G3 computer.

How to convert byte array to hexadecimal in php?

php - Convert byte array to hexadecimal string

Method:

You can convert each integer first Convert to character.

$chars = array_map("chr", $arr);

Then turn it into a string:

$bin = join($chars);

Finally convert it into a hexadecimal string:

$hex = bin2hex($bin);

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