In this tutorial, I will show you how to convert a binary to hexadecimal in PHP and a hexadecimal to binary in PHP. There is a very small and awesome function to create this hexadecimal to binary and binary to hexadecimal and that is bin2hex and the other is hex2bin. To convert binary to hexadecimal, you can use this code:
bin2hex("string goes here");
To convert hexadecimal to binary, you can use:
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Hope it can help you.