## The `crypt()` Function: A Powerful Tool for Data Encryption and Password Hashing ### Introduction In the realm of data security and password management, the `crypt()` function stands out as a versatile and widely used

bin2hex() function:

**bin2hex() function:** The `bin2hex()` function in PHP converts a binary string into its hexadecimal representation. It takes a binary string as its argument and returns a string containing the hexadecimal representation of the binary string.

The `array_merge()` function in PHP is used to merge two or more arrays into a single array. It takes variable number of arguments, each of which is an array to be merged. The function returns