Hashing passwords according to http://net.tutsplus.com/tutorials/php/understanding-hash-functions-and-keeping-passwords-safe/

password_hash.php

<?php
	/* User creates new account */
	/* Save hashed password and salt to db */
	//Username and password from $_POST
	$username = 'username';
	$password = 'password';
	
	//Blowfish algorithm with a cost of 10
	$algo = '$2a$10$';
	//Generate a salt with no prefix and a high entropy of 23 chars
	$salt = uniqid('', true);
	
	//Hash the password using Blowfish and our salt
	$hash = crypt($password, $algo . $salt);
	//TODO: Save hash and salt to db
	
	
	/* User attempts to login */
	/* Hash user input with salt in db and compare to hash in db */
	//TODO: Get salt and hash from db
	$new_hash = crypt($password, $algo . $salt);
	
	echo "Password: ${password}<br />";
	echo "Salt: ${salt}<br />";
	echo "Hash: ${hash}<br />";
	echo "New hash: ${new_hash}<br />";
	
	//True if hash in db match the new hash generated from user input
	if ($hash == $new_hash)
		echo 'True!';
?>