将自定义验证码添加到备注表单

我的官方网站上有一个博客。我允许人们在我的博客上发表评论，但我不想从自动机器人那里得到评论。因此，我想在评论表单中添加一个称为“安全问题”的额外字段。但我不知道该怎么做。

这是我处理现有联系人表单的代码。（contact\\u info\\u submit.php）

<?php

$name = $_POST[\'name\'];
$phone = $_POST[\'phone\'];
$email = $_POST[\'email\'];
$location = $_POST[\'location\'];
$purpose = $_POST[\'purpose\'];
$status = $_POST[\'status\'];
$findus = $_POST[\'findus\'];
$inquiry = $_POST[\'inquiry\'];
$security = $_POST[\'security\'];
$from = "JT Design";
$to = "inquiry@jtdesign.my";
$subject = "$from, $name has submitted the enquiry form.";
$message = "Hi $from,\\n$name has submitted the enquiry form. Details are as follow: \\n\\n/*** Form Details Begin ***/\\n\\nName: $name\\nPhone Number: $phone\\nEmail Address: $email\\nLocation: $location\\nContact Purpose: $purpose\\nHouse Status: $status\\nHow did visitor find us?: $findus\\nMessage: $inquiry\\n\\n/*** Form Details Ended ***/\\n\\nPlease response to $name as soon as possible.\\n\\nRegards,\\n$from";

if ($security=="17") {
   mail($to, $subject, $message, "From: JTDesiGn");
   header("Location:/thanks.php");
}

else {
   header("Location:/enquiry-form/?Submission=failed");
}
?>

查看我的在线咨询表单的Url：www.jtdesign.my/enquiry-form/

有什么解决方案可以将此代码应用于wordpress评论表单？我只想添加“安全”字段。

<?php session_start(); $text = rand(10000,99999); $_SESSION["vercode"] = $text; $image = imagecreatefromjpeg("images/bg.jpg"); $txtColor = imagecolorallocate($image, 0, 0, 0); imagestring($image, 5, 5, 5, $text, $txtColor); header("Content-type: image/jpeg"); imagejpeg($image); ?>

<?php session_start(); if ($_POST["vercode"] != $_SESSION["vercode"] OR $_SESSION["vercode"]==\'\') { echo \'<strong>Incorrect verification code...</strong>\'; } else { $name = $_POST[\'name\']; $phone = $_POST[\'phone\']; $email = $_POST[\'email\']; $location = $_POST[\'location\']; $purpose = $_POST[\'purpose\']; $status = $_POST[\'status\']; $findus = $_POST[\'findus\']; $inquiry = $_POST[\'inquiry\']; $from = "JT Design"; $to = "inquiry@jtdesign.my"; $subject = "$from, $name has submitted the enquiry form."; $message = "Hi $from,\\n$name has submitted the enquiry form. Details are as follow: \\n\\n/*** Form Details Begin ***/\\n\\nName: $name\\nPhone Number: $phone\\nEmail Address: $email\\nLocation: $location\\nContact Purpose: $purpose\\nHouse Status: $status\\nHow did visitor find us?: $findus\\nMessage: $inquiry\\n\\n/*** Form Details Ended ***/\\n\\nPlease response to $name as soon as possible.\\n\\nRegards,\\n$from"; if ($security=="17") { mail($to, $subject, $message, "From: JTDesiGn"); header("Location:/thanks.php"); } else { header("Location:/enquiry-form/?Submission=failed"); } } ?>

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