What are the drawbacks of using email forms instead of displaying email addresses directly on a website in terms of user convenience and spam protection in PHP?

Using email forms instead of displaying email addresses directly on a website can be less convenient for users as they have to fill out a form instead of simply clicking on an email address. Additionally, email forms can be less effective in preventing spam compared to techniques like email obfuscation or using CAPTCHA. To improve user convenience and spam protection, consider implementing email obfuscation techniques along with a contact form. 

// Example of email obfuscation using PHP
function obfuscate_email($email) {
    $output = '';
    for ($i = 0; $i < strlen($email); $i++) {
        $output .= "&#" . ord($email[$i]) . ";";
    }
    return $output;
}

// Usage
$email = 'example@example.com';
$obfuscated_email = obfuscate_email($email);
echo '<a href="mailto:' . $obfuscated_email . '">' . $obfuscated_email . '</a>';

Keywords

email forms email addresses user convenience spam protection PHP

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