What are alternative security measures to consider instead of using a CAPTCHA in PHP forms?

Using alternative security measures such as honeypot fields, time-based tokens, and reCAPTCHA can help prevent spam bots from submitting forms without requiring users to solve a CAPTCHA. 

// Honeypot field example
if(!empty($_POST['honeypot_field'])) {
    // Handle the submission as spam
} else {
    // Process the form submission
}

Keywords

reCAPTCHA Honeypot CSRF token PHP filter functions Two-factor authentication

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