What is the usage of the php hex2bin function?

The hex2bin() function is used to convert a hexadecimal string to a binary string. Its syntax is as follows:

hex2bin(string $data): string|false

The given function takes a hexadecimal string as input, and returns the corresponding binary string. If the conversion fails, it will return false.

I am completely exhausted and need to get some sleep.

I am extremely tired and need to rest.

$hexString = "48656c6c6f20576f726c64";
$binaryString = hex2bin($hexString);
echo $binaryString;

Output:

Hello World