Method 1: Generate Random String with Custom function

This is a custom function to generate a random string of a defined length. Using this you can limit the characters, and symbols to be used in the random string.


Method 2: Generate Random String Using uniqid() function

The uniqid() function generate a Unique id based on the current time in microseconds. This function has a limitation, the result string has a fixed length of 13 characters.


Method 3: Generate Random String Using random_bytes() function

The random_bytes() function generates a cryptographically secure pseudo-random byte of defined length. This result will be in binary format, which you can convert to a hex value using bin2hex() function.



This tutorial helped you to generate random strings using PHP scripts. We have discussed 3 methods for generating random strings in PHP.