PHP convert string to hex and hex to string

To convert a string to its hexadecimal representation, you can use the bin2hex function in PHP. This function takes a string as input and returns a hexadecimal string.

Here's an example of how to use bin2hex:

Example of converting a string to its hexadecimal representation in PHP

php— editable, runs on the server

To convert a hexadecimal string back to its original string representation, you can use the hex2bin function. This function takes a hexadecimal string as input and returns the original string.

Here's an example of how to use hex2bin:

Example of converting a hexadecimal string back to its original string representation in PHP

php— editable, runs on the server

Note that the hex2bin function was introduced in PHP 5.4. If you are using an earlier version of PHP, you can use the pack function with the H* format string to achieve the same result:

Example of using the pack() function to convert a hexadecimal string back to its original string representation in PHP

php— editable, runs on the server