Question

我有4个页面：register.php，view.php，edit.php和display.php 在view.php上，我有一个显示数据库中所有数据的表单。我有一个搜索框，其结果显示在display.php中（它只显示数据库中的一行）。在显示php我有一个带有编辑按钮的表单。编辑按钮将我重定向到edit.php，我可以在其中更改我的数据。当我保存时，它将我重定向到view.php但我想在显示php中保存已编辑条目的值。我试过但它干了工作。我在这里遇到的第二个问题是在edit.php中保留我在register.php中选择的下拉选项

我;我的新编程，我希望有人能帮助我解决这个问题。 THX寻求帮助。

我的网页：

Display.php的

＆＃13;

<?php
 include('connect-db.php');

$client = $_POST['client']; 
$contract = $_POST['contract'];
if(
$contract = $_POST['contract'] )
{$query = "select * from users where contract = '$contract'"; }
else{
$query= "select * from users where client = '$client'";
}
$result = mysql_query($query); 
echo "<table>";
	
		while ($row = mysql_fetch_array($result, MYSQL_ASSOC)) 
{ 
	// echo out the contents of each row into a table
		echo '<label>Contract</label><input readonly="true" value=' . $row['contract'] . '>';
		echo '<label>Client</label><input readonly="true" type="text" value="' . $row['client'] . '">';
		echo '<label>Step</label><input  type="text" readonly="true" value=' . $row['Step'] . '>';
		echo '<br><a href="edit.php?contract=' . $row['contract'] . '"><input type="submit"value="Change"></a>';
		echo '<br>';		
		echo "</table>";
	} 

?>

＆＃13;

EDIT.PHP

＆＃13;

 <?php

 function renderForm($contract, $client, $step
 {
 ?>
 <!DOCTYPE html>
 <body>
<form id="base" name="base" method="post" action="">
	<input data-validate="number" value="<?php echo $contract; ?>" readonly="true" id="contract">
    <input data-validate="text"  value="<?php echo $client; ?>" id="client">
					  <select  name="step">
					    <option value="option1">Option1</option>
						<option value="option2">Option2</option>
				      </select>
	<input type="submit" value="Change">
</form>
</body>
</html>
		<?php
 }
 include('connect-db.php');
  if (isset($_POST['submit']))
 { 
 if (is_numeric($_POST['contract']))
 {
 $contract = mysql_real_escape_string(htmlspecialchars($_POST['contract']));
 $client = mysql_real_escape_string(htmlspecialchars($_POST['client']));
  $step = mysql_real_escape_string(htmlspecialchars($_POST['step']));
 if ($contract == '' || $client == '' )
 {
 $error = 'ERROR: Please fill in all required fields!';
 renderForm($contract, $client, $step, $error);
 }
 else
 {
 mysql_query("UPDATE users SET 
  contract='$contract', client='$client', step='$step', WHERE contract='$contract'")
 or die(mysql_error()); 
  header("Location: view.php"); 
 }
 }
 else
 {
 echo 'Error!';
 }
 }
 else
 {
 
 if (isset($_GET['contract']) && is_numeric($_GET['contract']) && $_GET['contract'] > 0)
 {
 $contract = $_GET['contract'];
 $result = mysql_query("SELECT * FROM users WHERE contract=$contract")
 or die(mysql_error()); 
 $row = mysql_fetch_array($result);
  if($row)
 {
$contract = $row['contract'];
$client = $row['client'];
$step = $row['step'];
 renderForm($contract, $client, $step, '');
 }
 else
 {
 echo "No results!";
 }
 }
 else
 {
 echo 'Error!';
 }
 }
?>

＆＃13;

VIEW.PHP

＆＃13;

<!DOCTYPE html>
<html>
      <?php 
	  include('connect-db.php');
			$sql="SELECT * FROM users";
			$result =mysql_query($sql);
		
			{
				?>

<table>
	<thead>
			<tr>
			<th span style="font-weight: normal;">Contrat</th>
			<th span style="font-weight: normal;">Client</th>
			<th span style="font-weight: normal;">Step</th>
			</tr>
	</thead>
			
			<?php
			}
		while ($data=mysql_fetch_assoc($result)){
?>	
	<tbody>
            <tr>
			<td><?php echo $data['contract'] ?></td>
			<td><?php echo $data['client'] ?></td>
			<td><?php echo $data['step'] ?></td>
			<td><a href="edit.php?contract=<?php echo $data['contract'] ?>"><input type="button" value="Change"></a></td>
			</tr> <?php } ?>
    </tbody>
  
 </table>

</body>
</html>

＆＃13;

REGISTER.PHP

＆＃13;

<!DOCTYPE html>
<html>
<form id="base" method="post" action="insert.php">
			<br>
			<br>
				<input data-validate="number" id="contract" name="contract">
                <input data-validate="text" id="client" name="client">
				  <select  name="step">
					    <option value="option1">OPTION1</option>
						<option value="option2">OPTION2</option>
				      </select>
			<button data-validate="submit">Register</button>
   </form>

    </body>
</html>

＆＃13;

Answer 1

use this instead of your edit.php    

 <?php

     function renderForm($contract, $client, $step
     {
     ?>
     <!DOCTYPE html>
     <body>
    <form id="base" name="base" method="post" action="">
        <input data-validate="number" value="<?php echo $contract; ?>" readonly="true" id="contract">
        <input data-validate="text"  value="<?php echo $client; ?>" id="client">
                          <select  name="step">
                            <option value="option1">Option1</option>
                            <option value="option2">Option2</option>
                          </select>
        <input type="submit" value="Change">
    </form>
    </body>
    </html>
            <?php
     }
     include('connect-db.php');
      if (isset($_POST['submit']))
     { 
     if (is_numeric($_POST['contract']))
     {
     $contract = mysql_real_escape_string(htmlspecialchars($_POST['contract']));
     $client = mysql_real_escape_string(htmlspecialchars($_POST['client']));
      $step = mysql_real_escape_string(htmlspecialchars($_POST['step']));
     if ($contract == '' || $client == '' )
     {
     $error = 'ERROR: Please fill in all required fields!';
     renderForm($contract, $client, $step, $error);
     }
     else
     {
     mysql_query("UPDATE users SET 
      contract='$contract', client='$client', step='$step', WHERE contract='$contract'")
     or die(mysql_error()); 
      header("Location:display.php"); 
     }
     }
     else
     {
     echo 'Error!';
     }
     }
     else
     {

     if (isset($_GET['contract']) && is_numeric($_GET['contract']) && $_GET['contract'] > 0)
     {
     $contract = $_GET['contract'];
     $result = mysql_query("SELECT * FROM users WHERE contract=$contract")
     or die(mysql_error()); 
     $row = mysql_fetch_array($result);
      if($row)
     {
    $contract = $row['baza_contract'];
    $client = $row['baza_client'];
    $step = $row['step'];
     renderForm($contract, $client, $step, '');
     }
     else
     {
     echo "No results!";
     }
     }
     else
     {
     echo 'Error!';
     }
     }
    ?>

表单提交后重定向到另一页面

1 个答案: