random_bytes to generate cryptographically secure random bytes
echo random_bytes($length);Generates cryptographically secure pseudo-random bytes which can be used as Salts, keys etc.
Available in PHP 7
Example
$str=random_bytes(7);
echo bin2hex($str);24aebd50cf05aaExample 1: Generating Cryptographically Secure API Keys
<?php
$key = bin2hex(random_bytes(16)); // Generates a 32-character API key
echo "Generated API key: $key";
?>Example 2: Creating Random Passwords
<?php
$password = bin2hex(random_bytes(8)); // Generates a secure 16-character password
echo "Random password: $password";
?>Example 3: Generating Salt for Hashing
<?php
$salt = bin2hex(random_bytes(16)); // 16-byte salt for hashing
echo "Generated salt: $salt";
?>String Functions how to change all the letters to upper case nl2br() To add Line break
Subhendu Mohapatra
Author & Instructor at plus2net
I write and maintain practical tutorials on Python, PHP, SQL, JavaScript, HTML, jQuery, and web development at plus2net. The tutorials focus on clear explanations, working examples, and code that readers can test and adapt while learning.
Connect:
Subscribe to our YouTube Channel here
This article is written by plus2net.com team.
https://www.plus2net.com
