提交表單後獲取會話信息

Question

在下面的代碼中，它無法檢索任何結果，當我硬編碼member_username ='admin'它工作得很好，但是當我有member_username ='$ kdo'時失敗。即使當我回聲$ KDO它打印 '管理員'（不帶引號）

<?php 

        mysql_set_charset('utf8'); 
        $result = mysql_query("SELECT * FROM members WHERE member_username = '$kdo'"); 
        while ($row = mysql_fetch_array($result, MYSQL_NUM)) { 

echo " 
         <fieldset> 
          <legend>Změnit kontaktní informace</legend> 
          <form method='post' action='zucet.php' class='menu_add'> 
           <p> 
            Email: <input type='text' name='aemail' id='aemail' value='$row[4]' size='30'/><br> 
            Jméno: <input type='text' name='ajmeno' value='$row[8]' size='30'/><br> 
            Příjmení: <input type='text' name='aprijmeni' value='$row[9]' size='30'/><br> 
            Firma: <input type='text' name='afirma' value='$row[15]' size='30'/><br> 
            Telefon: <input type='text' name='atel' value='$row[10]' size='30'/><br> 
            Centrální tel.: <input type='text' name='actel' value='$row[11]' size='30'/><br> 
            Město: <input type='text' name='amesto' value='$row[12]' size='30'/><br> 
            Ulice: <input type='text' name='aulice' value='$row[13]' size='30'/><br> 
            Čas doručení: <input type='text' name='acas' value='$row[14]' size='30'/><br> 
            <input type='submit' name='zmenit' formaction='zucet.php' value='Změnit' /> 
           </p> 
          </form> 
         </fieldset>"; 

        } 

        mysql_free_result($result); 

       ?> 

zucet.php

<?php 
    session_start(); 

    $con = mysql_connect("juxcore.ipagemysql.com", "*", "*") or 
    die("Could not connect: " . mysql_error()); 

    mysql_select_db("jux_mms"); 
    mysql_set_charset('utf8');  

    $sql="UPDATE members SET member_email = '$_POST[aemail]' WHERE member_username = '$kdo'"; 

    if (!mysql_query($sql,$con)) 
     { 
     die('Error: ' . mysql_error()); 
     } 

    header('Location: http://www.juxcore.com/x/vita/ucet.php'); 


    mysql_close($con); 

感謝您的幫助，非常感謝

Answer 1

試試這個：

$result = mysql_query("SELECT * FROM members WHERE member_username = '" . $kdo . "';");