string hex2bin ($hexString) Parameters : This function takes one parameter, $hexString, which represents the hexadecimal data to be decoded into binary.Return Value:This function returns a string that is the binary representation of the hexadecimal input of $hexString. If this function fails to decode a hex string to binary, it returns False.Examples :Input: $hexString = "48656c6c6f20576f726c6421" Output: Hello World! Input: $hexString = "6578616d706c65206865782064617461" Output: example hex dataThe programs below illustrate the hex2bin() function:Program 1:
?>Hello World!Program 2:
?>example hex dataLink :
http://php.net/ manual / en / function.hex2bin.php
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