Generate Random Password in PHP

<?php

/*

This function generates a random password.

It can contain any set of characters that you specify.

You can also control the length of generated password.

*/


function simplePasswordGenerator($length) {
	
	
	
	// This is the list of characters that you want to use for generating random password
    $characters = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890.-+=_,!@$#*%<>[]{}';
	
    $password = array(); //$password as an array, which will later be converted to string
    $alphaLength = strlen($characters) - 1; //This is number up to which array index runs
    
	for ($i = 0; $i < $length; $i++) {
        $n = rand(0, $alphaLength);
        $password[] = $characters[$n];
    }
    return implode($password); //turn the array into a string
}


// Calling the function
$length=8;
echo simplePasswordGenerator($length);

?>