如果（isset）$ _ POST故障

我真的在和這個做鬥爭，我已經嘗試了每個關於這個的youtube/google頁面，沒有任何東西可以解決這個問題。

當點擊提交數據庫只收集「idContactForm」，但不休息（名稱/電子郵件/主題/消息）

我已經試過了所有我能找到使用if（isset）$ _ POST線，但我總是看到（$ name/$ email/$ subject/$ message）上的「Undefined index：」錯誤

我在做什麼錯？

<?php 

    include 'config.php'; 

    if (!isset($_POST['submitted'])) { 

     $name = trim(mysqli_escape_string($conn,$_POST['Name'])); 
     $email = trim(mysqli_escape_string($conn,$_POST['Email'])); 
     $subject = trim(mysqli_escape_string($conn,$_POST['Subject'])); 
     $message = trim(mysqli_escape_string($conn,$_POST['Message'])); 

    } else { 
    ## connect mysql server 
     $mysqli = new mysqli('localhost', 'root', '******', 'tomepublications'); 
     # check connection 
     if ($mysqli->connect_errno) { 
      echo "<p>MySQL error no {$mysqli->connect_errno} : {$mysqli->connect_error}</p>"; 
      exit(); 
     } 


      # insert data into mysql database 
      $sql = "INSERT INTO `contactform` (`idContactForm`, `Name`, `Email`, `Subject`, `Message`) 
        VALUES (NULL, '{$name}', '{$email}', '{$subject}', '{$message}')"; 

      if ($mysqli->query($sql)) { 
       //echo "New Record has id ".$mysqli->insert_id; 
       echo "<p>Registred successfully!</p>"; 
      } else { 
       echo "<p>MySQL error no {$mysqli->errno} : {$mysqli->error}</p>"; 
       exit(); 
      } 
     } 

    ?>

HTML

<form method="post" action="contactf.php"> 
            <div class="form-group"> 
             <input type="text" name="name" id="Name" class="form-control" placeholder="Name" required> 
            </div> 
            <div class="form-group"> 
             <input type="email" name="email" id="Email"class="form-control" placeholder="Email" required> 
            </div> 
            <div class="form-group"> 
             <input type="text" name="subject" id="Subject"class="form-control" placeholder="Subject" required> 
            </div> 
            <div class="form-group"> 
             <textarea name="message" class="form-control" id="Message" rows="15" placeholder="Message" required></textarea> 
            </div> 
            <input type="hidden" name="submitted" value="true"> 
            <input type="submit" value="submit" class="btn btn-primary">Send Message</> 
           </form>

來源

2015-12-29 Neal Fourie

你如果是錯的，$名稱，$電子郵件，$主題和$消息不在的其他範圍。

<?php 

include 'config.php'; 

if (isset($_POST['submitted'])) { 

    ## connect mysql server 
    $mysqli = new mysqli('localhost', 'root', '******', 'tomepublications'); 
    # check connection 
    if ($mysqli->connect_errno) { 
     echo "<p>MySQL error no {$mysqli->connect_errno} : {$mysqli->connect_error}</p>"; 
     exit(); 
    } 

    $name = trim(mysqli_escape_string($conn,$_POST['name'])); 
    $email = trim(mysqli_escape_string($conn,$_POST['email'])); 
    $subject = trim(mysqli_escape_string($conn,$_POST['subject'])); 
    $message = trim(mysqli_escape_string($conn,$_POST['message'])); 


    # insert data into mysql database 
    $sql = "INSERT INTO `contactform` (`idContactForm`, `Name`, `Email`, `Subject`, `Message`) 
       VALUES (NULL, '{$name}', '{$email}', '{$subject}', '{$message}')"; 

     if ($mysqli->query($sql)) { 
      //echo "New Record has id ".$mysqli->insert_id; 
      echo "<p>Registred successfully!</p>"; 
     } else { 
      echo "<p>MySQL error no {$mysqli->errno} : {$mysqli->error}</p>"; 
      exit(); 
     } 
    } 

?>

來源

2015-12-29 22:16:46

THX Iamfree回答..這奏效了！非常感謝 –

你*必須*在運行'mysqli_escape_string（）'之前連接到服務器' –

@Dragon我認爲你是對的！ –

的變量是區分大小寫的。表單使用name="name"，全部小寫，但你想找的，$_POST['Name']大寫ň

來源

2015-12-29 22:12:43

喜袞，感謝名單快速回復我已經改變了一切，現在爲小寫，還是給了我同樣的錯誤 –

和問題的另一半iamfreee –

當在else塊中構建SQL查詢時，這些變量（$ name，$ email，$ subject，$ message）仍然未定義。變量只在if塊中定義。

來源

2015-12-29 22:18:06 dsluis

如果（isset）$ _ POST故障

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