注意：未定義索引 - PHP

不確定這裏發生了什麼事。我想做一個簡單的電子郵件。當PHP腳本運行，我得到三個錯誤：注意：未定義索引 - PHP

Notice: Undefined index: subject 
Notice: Undefined index: email 
Notice: Undefined index: emailcontent

HTML：

<form action="email.php" method="post" class="email-form"> 
       <input type="text" name="subject" placeholder="E-mail Subject"></input> 
       <input type="text" name="email" placeholder="Your E-mail Address"></input> 
       <textarea type="text" name="emailcontent"></textarea> 
       <br> 
       <button type="submit" name="submit" value="send">Send E-mail</button> 

</form>

PHP：

<?php 

$emailSubject = $_POST["subject"]; 
$emailAddress = $_POST["email"]; 
$emailContent = $_POST["emailcontent"]; 

$headers = "From: " + $emailAddress; 

$myEmail = "myemail"; 

mail($myEmail, $emailSubject, $emailContent, $headers); 



?>

來源

2015-10-17 Namone

測試你的代碼，它工作正常嗎？ ...你在同一個文件中有HTML和PHP嗎？ – Terminus

我確實有他們在同一個文件。 – Namone

如果他們必須在同一個文件中，而不是像這樣包裝所有的php代碼 Terminus

我覺得你應該先檢查是否字段設置與否。當頁面加載沒有任何價值，併產生通知

<?php 
if(isset($_POST['submit'])) 
{ 
    $emailSubject = $_POST["subject"]; 
    $emailAddress = $_POST["email"]; 
    $emailContent = $_POST["emailcontent"]; 

    $headers = "From: " + $emailAddress; 

    $myEmail = "myemail"; 

    mail($myEmail, $emailSubject, $emailContent, $headers); 
} 



?>

來源

2015-10-17 04:10:51

注意：未定義索引 - PHP

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