php - Javascript Alert Window Redirects to Another Webpage - 


    <?php  session_start();  include_once "connect.php";  $fullname = $_post['fullname']; $username = $_post['username']; $emailadd = $_post['email']; $password = $_post['password']; $query =  mysql_query("select * users username = '$username' "); $result = mysql_fetch_array($query);    if($fullname == "")   {  ?>     <script>       alert("full name required!");       window.location.href = "registeruser.php";     </script> <?php   }      else     {       if ($username == "")       { ?>         <script>           alert("invalid username!");           window.location.href = "registeruser.php";         </script>  <?php            }          else         {           if($username == $result['username'])           { ?>             <script>               alert("username exists!");               window.location.href = "registeruser.php";             </script> <?php           }              else             {               if ($emailadd == $result['email'])                { ?>                 <script>                   alert("email address required!");                   window.location.href = "registeruser.php";                 </script> <?php               }                  else                 {                   if ($password == "")                   { ?>                     <script>                       alert("username required!");                       window.location.href = "registeruser.php";                     </script>  <?php                        }                      else                     {                       if($_post['password']==$_post['confirmpass'])                       {                         mysql_query("insert users (fullname, username, email, password)                          values ('$fullname', '$username', '$emailadd', '$password')" );                         mysql_close(); ?>                             <script>                           alert("registered successfully!");                           window.location.href = "index.php";                         </script> <?php                       }                          else                         { ?>                           <script>                             alert("password , confirm password not match");                             window.location.href = "registeruser.php";                           </script> <?php                         }                     }                 }             }         }     }     ?>

it works fine. problem is: the alert window shows web page , not within webpage okay looks awful direct user web page without having contents there. if me please on how fix , make javascript alert window display on same web page only. actually, have tried solutions this..

if($fullname == "") {   echo '<script>';   echo 'alert("full name required!")';   echo 'window.location.href = "registeruser.php"';   echo '</script>'; }

use base url , paste custom path page like:

<?php if($fullname == "") { ?>   <script>    var mybaseurl = <?php echo base_url_constant?>    var customurl = mybaseurl."/registeruser.php";    alert("full name required!");    window.location.href = customurl;   </script> <?php } ?>

and should avoid echoing script, use regular script block enclosing php tags.


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