random_bytes
Description
The random_bytes of Random for PHP get cryptographically secure random bytes.
Syntax
random_bytes( int $length ): string
Parameters
length
The length of the random string that should be returned in bytes; must be 1 or greater.
Return
A string containing the requested number of cryptographically secure random bytes.
Examples
1 · return
<? $length = 10; $return = random_bytes($length); var_dump($return);
string(10) "k� e�۶�8"
2 · hexadecimal
<? $length = 10; $return = random_bytes($length); $hexadecimal = bin2hex($return); var_dump($hexadecimal);
string(20) "e6d472cbbc49f55fa85b"