phpのテキスト領域を編集して更新する

Question

私のテキスト領域をフォームに追加すると、php関数が動作しません。他のすべての入力または作業。場合は、のコメント（テキストエリア）フォーム編集機能では、その発言でテキストを表示できません。

<form action="" method="post"> 
       <div class="row"> 
       <input type="hidden" name="id" value="<?php echo $id; ?>"/> 
         <div class="col-lg-4 col-xs-6" class="form-group"> 
        <label>Vehicle Type <span style="color:red;font-size:8px;"><i class="fa fa-asterisk" aria-hidden="true"></i></span></label> 
         <select name="vehicle_type" class="form-control"> 
         <option <?php echo ($vehicle_type=='Bicycle')?'selected':'' ?>>Bicycle</option> 
         <option <?php echo ($vehicle_type=='Bike')?'selected':'' ?>>Bike </option> 
         <option <?php echo ($vehicle_type=='Cars')?'selected':'' ?>>Cars </option> 
         <option <?php echo ($vehicle_type=='Truck')?'selected':'' ?>>Truck</option> 
         <option <?php echo ($vehicle_type=='Others')?'selected':'' ?>>Others</option> 

        </select> 
        </div> 


        <div class="col-lg-4 col-xs-6" class="form-group"> 
        <label>Duration </label> <span style="color:red; font-size:8px; "><i class="fa fa-asterisk" aria-hidden="true"></i></span> 
             <input type="text" value="<?php echo $duration; ?>" name="duration" class="form-control" maxlength="20" placeholder="Eg: 4 Hrs"> 
         </div> 

         <div class="col-lg-4 col-xs-6" class="form-group"> 
         <label><i class="fa fa-inr" aria-hidden="true"></i> Amount</label> <span style="color:red;font-size:8px;"><i class="fa fa-asterisk" aria-hidden="true"></i></span> 
         <input type="number" name="amount" value="<?php echo $amount; ?>" class="form-control" placeholder="00"> 
         </div> 
        </div> 

         <div class="row"> 
          <div class="col-lg-4 col-xs-6" class="form-group"> 

          <label>Remarks</label> 
          <textarea class="form-control" name="remarks" <?php echo htmlspecialchars($remarks); ?> rows="3" placeholder="Enter ..."></textarea> 
          </div> 


         <div id="butn" class="col-lg-3 col-xs-3"> 
         <button class="myButton" type="submit" name="submit" value="Submit" class="btn btn-block btn-success btn-lg">SAVE</button> 
         </div> 

         </div> 
      </form> 

私のHTMLフォーム

<?php 

function renderForm($id, $vehicle_type, $duration, $amount,$remarks, $error) 

{ 

?> 

"HTML" の前に罰金私のエラー

コードに私を助けてください、他の入力が表示されますが、私は再び

を、それを保存カント

"html"の後のコード

<?php 

} 







// connect to the database 

include('connection.php'); 





// check if the form has been submitted. If it has, process the form and save it to the database 

if (isset($_POST['submit'])) 

{ 

// confirm that the 'id' value is a valid integer before getting the form data 

if (is_numeric($_POST['id'])) 

{ 

// get form data, making sure it is valid 

$id = $_POST['id']; 

$vehicle_type = mysql_real_escape_string(htmlspecialchars($_POST['vehicle_type'])); 

$duration = mysql_real_escape_string(htmlspecialchars($_POST['duration'])); 

$amount = mysql_real_escape_string(htmlspecialchars($_POST['amount'])); 

$remarks = mysql_real_escape_string(htmlspecialchars($_POST['remarks'])); 





if ($vehicle_type=='' || $duration=='' || $amount=='' || $remarks=='') 

{ 

// generate error message 

$error = 'ERROR: Please fill in all required fields!'; 



//error, display form 

renderForm($id, $vehicle_type, $duration, $amount, $remarks, $error); 

} 

else 

{ 

// save the data to the database 

mysql_query("UPDATE price_normal SET vehicle_type='$vehicle_type', duration='$duration', amount='$amount', remarks='$remarks', WHERE id='$id'") 

or die(mysql_error()); 



// once saved, redirect back to the view page 

header("Location: pnormal.php"); 

} 

} 

else 

{ 

// if the 'id' isn't valid, display an error 

echo 'Error!'; 

} 

} 

else 


{ 



// get the 'id' value from the URL (if it exists), making sure that it is valid (checing that it is numeric/larger than 0) 

if (isset($_GET['id']) && is_numeric($_GET['id']) && $_GET['id'] > 0) 

{ 

// query db 

$id = $_GET['id']; 

$result = mysql_query("SELECT * FROM price_normal WHERE id=$id") 

or die(mysql_error()); 

$row = mysql_fetch_array($result); 



// check that the 'id' matches up with a row in the databse 

if($row) 

{ 



// get data from db 

$vehicle_type = $row['vehicle_type']; 

$duration = $row['duration']; 

$amount = $row['amount']; 

$remarks = $row['remarks']; 





// show form 

renderForm($id, $vehicle_type, $duration, $amount, $remarks,''); 

} 

else 

// if no match, display result 

{ 

echo "No results!"; 

} 

} 

else 

// if the 'id' in the URL isn't valid, or if there is no 'id' value, display an error 

{ 

echo 'Error!'; 

} 

} 

?> 

Answer 1

ブラウザで実際のHTMLを見てください。あなたはtextarea要素の属性として「発言」コンテンツをレンダリングしている：

<textarea class="form-control" name="remarks" <?php echo htmlspecialchars($remarks); ?> rows="3" placeholder="Enter ..."></textarea> 

それは、その要素の内容次のようになります。

<textarea class="form-control" name="remarks" rows="3" placeholder="Enter ..."><?php echo htmlspecialchars($remarks); ?></textarea>