PHP Array Exercises : Generate a random password using shuffle() function

Last update on May 30 2025 13:14:02 (UTC/GMT +8 hours)

27. Generate Random Password Using Shuffle

Write a PHP function to generate a random password (contains uppercase, lowercase, numeric and other) using shuffle() function.

Sample Solution:

PHP Code:

<?php
// Define a function to generate a random password with specified character categories
function rand_Pass($upper = 1, $lower = 5, $numeric = 3, $other = 2) { 
 
 // Initialize an empty array to store the characters of the password
 $pass_order = Array(); 
 
 // Initialize an empty string to store the final password
 $passWord = ''; 
 // Create contents of the password with uppercase letters
 for ($i = 0; $i < $upper; $i++) { $pass_order[] = chr(rand(65, 90)); } // Create contents of the password with lowercase letters for ($i = 0; $i < $lower; $i++) { $pass_order[] = chr(rand(97, 122)); } // Create contents of the password with numeric digits for ($i = 0; $i < $numeric; $i++) { $pass_order[] = chr(rand(48, 57)); } // Create contents of the password with other special characters for ($i = 0; $i < $other; $i++) { $pass_order[] = chr(rand(33, 47)); } // Shuffle the order of characters using shuffle() shuffle($pass_order); // Concatenate the characters to form the final password string foreach ($pass_order as $char) { $passWord .= $char; } // Return the generated password return $passWord; } // Display the generated password echo "\n" . "Generated Password : " . rand_Pass() . "\n"; ?> 

Output:

Generated Password : h1'1#h7Gqfy

Flowchart:

For more Practice: Solve these Related Problems:

• Write a PHP function to generate a random password with a specified length, including uppercase, lowercase, numbers, and symbols, using shuffle().
• Write a PHP script to generate multiple random passwords and display them in a formatted list, ensuring uniqueness.
• Write a PHP program to combine different character sets, shuffle them, and then extract a random subset as a password.
• Write a PHP script to implement a function that generates a secure random password and tests its complexity using regular expressions.

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