第二組復選框表單數據未填充到PHP表單郵件正文中？

Question

我一直在解決表單中的問題，該表單的許多字段未通過PHP郵件表單正確填充。

我回到基礎知識，將其分解為幾個字段，並且在將第二組復選框數據添加到組合中時似乎遇到了問題。 正如下面復制的那樣，該電子郵件將發送，並且正文包括$ sport_msg之前的所有內容。 它不包括$ availability_msg或$ message，盡管它是在添加第二組復選框數據之前這樣做的。

我90％確信問題出在我$ email_body的語法上，但是我不確定自己做錯了什么。 或者，這可能與兩組復選框的“ foreach”部分中的括號有關。 誰能比我更擅長於PHP，請給我另一雙眼神？

我的PHP：

<?php
if(!isset($_POST['submit']))
{
    //This page should not be accessed directly. Need to submit the form.
    echo "error; you need to submit the form!";
}
$name = $_POST['name'];
$company = $_POST['company'];
$visitor_email = $_POST['email'];
$sport = $_POST['sport'];
$message = $_POST['message'];

foreach($_POST['availability'] as $value) {
$availability_msg .= "$value\n";
}

foreach($_POST['sport'] as $value) {
$sport_msg .= "$value\n";
}



//Validate first
if(empty($name)||empty($visitor_email)) 
{
    echo "Name and email are mandatory!";
    exit;
}

if(IsInjected($visitor_email))
{
    echo "Bad email value!";
    exit;
}

$email_from = 'VGFV Guide Signup';//<== Shows up in the "from" field
$email_subject = "New Guide Signup";//<==  Email Subject

//Begin Email Body - I BELIEVE THIS IS WHERE MY ISSUE IS!!!

$email_body = "$name. has signed up from $company\n\n".
    "Here is the info:\n \n".
    "Guide Services Offered: \n".$sport_msg;
    "Availability: \n".$availability_msg;
    "$message \n \n".

$to = "myemailaddress@mydomain.com";//<== update the email address
$headers = "From: $email_from \r\n";
$headers .= "Reply-To: $visitor_email \r\n";
//Send the email!
mail($to,$email_subject,$email_body,$headers);
//done. redirect to thank-you page.
header('Location: thank-you.html');


// Function to validate against any email injection attempts
function IsInjected($str)
{
  $injections = array('(\n+)',
              '(\r+)',
              '(\t+)',
              '(%0A+)',
              '(%0D+)',
              '(%08+)',
              '(%09+)'
              );
  $inject = join('|', $injections);
  $inject = "/$inject/i";
  if(preg_match($inject,$str))
    {
    return true;
  }
  else
    {
    return false;
  }
}

?>

Answer 1

聲明變量，因為如果數組為空，則循環將不會對其進行設置：

$availability_msg = '';
$sport_msg = '';

$email_body也存在語法錯誤，這是已修復的版本：

$email_body = "$name. has signed up from $company\n\n".
    "Here is the info:\n \n".
    "Guide Services Offered: \n".$sport_msg .
    "Availability: \n".$availability_msg .
    $message;

Answer 2

您是否檢查過值，例如

error_log(print_r($_POST,1));
error_log(print_r($_POST['availability'],1);
error_log(print_r($_POST['sport'] ,1));

您是否事先檢查了要傳遞給郵件函數的變量，例如（對所有變量都執行此操作）：

error_log(" TO>".$to."<");

另外，郵件功能的返回值是多少？