- password_hash: documentation ( source)
- password_verify: documentation ( source)
<?php
$options = array('cost' => 11);
$hash = password_hash("banana", PASSWORD_BCRYPT, $options);
if (password_verify('banana', '$2y$11$UhoCgBvTzmfxK0F/EmHNqu0QbZbzCe4FwhLvB31DCd2EfJkwYi1Ye')) {
echo 'Password is valid!';
} else {
echo 'Invalid password.';
}