sql INSERT成功/不成功的邮件无法正常显示

Question

我正在使用表单将记录插入到我的数据库中。错误检查工作和记录插入正确。问题是记录插入消息显示在窗体上方而不是其下面。我试着移动INSERT查询，所以它在表单下显示，但是当我这样做时，错误检查不起作用。任何帮助解决这个将不胜感激。

<p class="first"><span class="error">* required field.</span></p> 
    <br> 

<?php 
function test_input($data){ 
    $data = trim($data); 
    $data = stripslashes($data); 
    $data = htmlspecialchars($data); 
    return $data; 
} 

$servername = "localhost"; 
$username = "oldga740_Tonymm"; 
$password = "JtAjDm#6"; 
$dbname = "oldga740_SeniorProject"; 

// create connection 
$connection = new mysqli($servername, $username, $password, $dbname); 

if(isset($_POST['submit']) && !$connection->connect_error){ 
    // to track errors 
    $error = false; 

    // now validate input fields 
    if (empty($_POST['Project']) || !isset($_POST['Project'])){ 
     $ProjectErr = "Project name is required"; 
     $error = true; 
    }elseif(!preg_match("/^[A-Za-z0-9.-]+$/",$_POST['Project'])){ 
     // check if project only contains number, letters, comma's periods and whitespace 
     $ProjectErr = "Only letters, numbers, comma's, periods and white space allowed"; 
     $error = true; 
    }else{ 
     $Project = test_input($_POST['Project']); 
    } 

    if (empty($_POST['Client']) || !isset($_POST['Client'])){ 
     $ClientErr = "Client name is required"; 
     $error = true; 
    }elseif(!preg_match("/^[A-Za-z 0-9.-]+$/",$_POST['Client'])){ 
     // check if project only contains number, letters, comma's periods and whitespace 
     $ClientErr = "Only letters, numbers, comma's, periods and white space allowed"; 
     $error = true; 
    }else{ 
     $Client = test_input($_POST['Client']); 
    } 

    if (empty($_POST['LastName']) || !isset($_POST['LastName'])){ 
     $LastNameErr = "Last name is required"; 
     $error = true; 
    }elseif(!preg_match("/^[A-Za-z0-9-]+$/",$_POST['LastName'])){ 
     // check if last name only contains letters and whitespace 
     $LastNameErr = "Only letters and white space allowed"; 
     $error = true; 
    }else{ 
     $LastName = test_input($_POST['LastName']); 
    } 

    if (empty($_POST['DateReceived']) || !isset($_POST['DateReceived'])){ 
     $DateReceivedErr = "Date received is required"; 
     $error = true; 
    }elseif(!preg_match("/^\d{4}-\d{2}-\d{2}$/",$_POST['DateReceived'])){ 
     // check if data received only contains letters and whitespace 
     $DateReceivedErr = "Date must be entered as YYYY/MM/DD"; 
     $error = true; 
    }else{ 
     $DateReceived = test_input($_POST['DateReceived']); 
    } 

    if(!$error){ 
     $query = "INSERT INTO Projects (Project, Client, LastName, DateReceived) VALUES ('$Project', '$Client', '$LastName', '$DateReceived')"; 
     if($connection->query($query)){ 
      echo "record is successfully inserted!"; 
     }else{ 
      echo "error: record could not be inserted"; 
     } 
    } 
} 

?> 

<?php 
    $connection->close(); 
?> 
<form action="http://www.oldgamer60.com/Project/NewProject.php" method="post"> 

<div class="fieldset"> 
     <fieldset> 

     Project: <input type="text" name="Project" value="<?php if(isset($Project)){ echo $Project; } ?>"> 
     <span class="error">* <?php if(isset($ProjectErr)){ echo $ProjectErr; } ?></span> 
     <br><br> 
     Client: <input type="text" name="Client" value="<?php if(isset($Client)){ echo $Client; } ?>"> 
     <span class="error">* <?php if(isset($ClientErr)){ echo $ClientErr; } ?></span> 
     <br><br> 
     LastName: <input type="text" name="LastName" value="<?php if(isset($LastName)){ echo $LastName; } ?>"> 
     <span class="error">* <?php if(isset($LastNameErr)){ echo $LastNameErr; } ?></span> 
     <br><br> 
     DateReceived: <input type="text" name="DateReceived" value="<?php if(isset($DateReceived)){ echo $DateReceived; } ?>"> 
     <span class="error">* <?php if(isset($DateReceivedErr)){ echo $DateReceivedErr; } ?></span> 
     <br><br> 
     <input type="submit" name="submit" value="Submit"> 
    </fieldset> 
    </div> 
    </form> 

</div> 
</div> 
</body> 
</html> 

Answer 1

使用变量商店的消息，然后显示它只要您需要，像这样：

// your code 

if(isset($_POST['submit']) && !$connection->connect_error){ 
    // your code 

    if(!$error){ 
     $query = "INSERT INTO Projects (Project, Client, LastName, DateReceived) VALUES ('$Project', '$Client', '$LastName', '$DateReceived')"; 
     if($connection->query($query)){ 
      $message = "record is successfully inserted!"; 
     }else{ 
      $message = "error: record could not be inserted"; 
     } 
    } 
} 

?> 

<?php 
    $connection->close(); 
?> 
<form action="http://www.oldgamer60.com/Project/NewProject.php" method="post"> 

    <div class="fieldset"> 
     <fieldset> 
      Project: <input type="text" name="Project" value="<?php if(isset($Project)){ echo $Project; } ?>"> 
      <span class="error">* <?php if(isset($ProjectErr)){ echo $ProjectErr; } ?></span> 
      <br><br> 
      Client: <input type="text" name="Client" value="<?php if(isset($Client)){ echo $Client; } ?>"> 
      <span class="error">* <?php if(isset($ClientErr)){ echo $ClientErr; } ?></span> 
      <br><br> 
      LastName: <input type="text" name="LastName" value="<?php if(isset($LastName)){ echo $LastName; } ?>"> 
      <span class="error">* <?php if(isset($LastNameErr)){ echo $LastNameErr; } ?></span> 
      <br><br> 
      DateReceived: <input type="text" name="DateReceived" value="<?php if(isset($DateReceived)){ echo $DateReceived; } ?>"> 
      <span class="error">* <?php if(isset($DateReceivedErr)){ echo $DateReceivedErr; } ?></span> 
      <br><br> 
      <input type="submit" name="submit" value="Submit"> 
     </fieldset> 
    </div> 
</form> 

    <?php 

     if(isset($message)){ echo $message; } 

    ?> 

// your code