How can the length of a database column impact the storage of hashed passwords in PHP?

When storing hashed passwords in a database using PHP, the length of the database column should be long enough to accommodate the hash output. If the column length is too short, it can truncate the hashed password, leading to potential login issues for users. To solve this issue, ensure that the database column length for storing hashed passwords is set to a sufficient length, such as 255 characters.

// Example of setting the column length for storing hashed passwords in a MySQL database
$pdo->exec("ALTER TABLE users MODIFY COLUMN password VARCHAR(255) NOT NULL");