(PHP 5 >= 5.5.0)
password_hash — Creates a password hash
$password
, integer $algo
[, array $options
] )password_hash() creates a new password hash.
password
The user's password.
algo
A password algorithm constant denoting the algorithm to use when hashing the password.
options
An associative array containing options. Currently, two options are supported: salt, to provide a salt to use when hashing the password, and cost, which denotes the algorithmic cost that should be used. Examples of these values can be found on the crypt() page.
If omitted, a random salt will be created and the default cost will be used.
Returns the hashed password, 或者在失败时返回 FALSE.
Example #1 password_hash() example
<?php
echo password_hash("rasmuslerdorf", PASSWORD_DEFAULT)."\n";
$options = [
'cost' => 7,
'salt' => 'BCryptRequires22Chrcts',
];
echo password_hash("rasmuslerdorf", PASSWORD_BCRYPT, $options)."\n";
?>
以上例程会输出：
$2y$10$.vGA1O9wmRjrwAVXD98HNOgsNpDczlqm3Jq7KnEd1rVAGv3Fykk1a $2y$07$BCryptRequires22Chrcte/VlQH0piJtjXl.0t1XkA8pw9dMXTpOq