<?php
$login_fields = [
    'method' => 'post',
    'action' => 'process.php?action=login',
    'login_username' => [
        'label' => 'username',
        'type' => 'text',
        'placeholder' => 'e.g., jsmith',
        'validators' => [
            'no_spaces',
            'check_sql',
        ],
    ],
    'login_password' => [
        'label' => 'password',
        'type' => 'password',
        'placeholder' => '',
        'validators' => [
            'no_spaces',
            'pw_strength',
            'no_backslash',
            'check_sql',
        ],
    ],
];