subject: PHP Random Password Generator Script [print this page] PHP Random Password Generator Script PHP Random Password Generator Script
Password is a gateway for our services, and we can't compromise on the security of password. Today i am going to write a tutorial that will help the PHP developers of every level to create a secure, powerful and easy to use random password generator algorithm.
Step 1: Four Important Inputs to Create Random Password
We will choose four simple inputs to construct our password. These inputs will generate a password that will hard to guess.
Length of Password (User Input)
Lower Case Letters (a-z)
Upper Case Letters (A-Z)
Numbers (0-9)
Symbols (~!@ etc)
Step 2: Arrange Inputs in PHP Array
I love array(s), as they give a flexible power to handle complicated logic's easily. So i will recommend to arrange these inputs in the form of Array like,
So we have collected basic inputs to construct our password. I am going to merge all these inputs in a global array, that will help us to mix them easily.
$global = array();
$global = array_merge( $global, $alpha_upper);
$global = array_merge( $global, $alpha_lower);
$global = array_merge( $global, $number);
$global = array_merge( $global, $symbol);
Step 4: Shuffle to Generate a Random String for Password
I will use a simple, built-in method of PHP for the sake of accuracy and speed to shuffle our global array.
shuffle($global);
Step 5: Generate Random Password with PHP
Now it is a final step to accomplish our task. We have prepared our ingredients (inputs) to generate a good, powerful, secure and hard to guess password. Let's play with a simple logic by using the power of foreach loop.
$password = '';
foreach( $global as $val ) {
$password .= $val;
if( strlen($password) == $length ) {
break;
}
}
Step 6: Print Password
Password is ready to print, and i hope you will like this logic.
