php审核邮件内容

<?php
function detectSensitiveInfo($emailContent) {
    $sensitivePatterns = [
        '/\b\d{4}[- ]?\d{4}[- ]?\d{4}[- ]?\d{4}\b/', // 信用卡号
        '/\b\d{3}[- ]?\d{2}[- ]?\d{4}\b/' // 社会安全号码
    ];

    foreach ($sensitivePatterns as $pattern) {
        if (preg_match($pattern, $emailContent)) {
            return true;
        }
    }
    return false;
}

$emailContent = "Your credit card number is 1234-5678-9012-3456.";
if (detectSensitiveInfo($emailContent)) {
    echo "邮件内容包含敏感信息";
} else {
    echo "邮件内容安全";
}
?>

<?php
function validateEmailFormat($email) {
    if (filter_var($email, FILTER_VALIDATE_EMAIL)) {
        $headers = imap_headerinfo($email);
        if ($headers && $headers->from[0]->personal) {
            return true;
        }
    }
    return false;
}

$email = "example@example.com";
if (validateEmailFormat($email)) {
    echo "邮件格式正确";
} else {
    echo "邮件格式不正确";
}
?>