Display error message on same page if all fields not filled out?

Russia · May 8, 2010

I am trying to change my script to show the error message on the same page, above the form instead of on another page, that I current have coded. The thing is I do not know how to do that.

Can someone help me out by showing how to do it?

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
  <title>Website Installation</title>
  <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
  <link href="installer-styles.css" rel="stylesheet" type="text/css" />
</head>
<body>
  <div id="container">

  <div id="header">
   <a href="installer.php">
   Website Installation</a>
   </div>
    <div id="main">
    <div class="pad25">



<?php
if(isset($_POST['submit'])) {

if ($_POST['nextstep']=="checkuser") { //start function for the checkuser stage
if(empty($_POST['db_name']) || empty($_POST['db_user']) || empty($_POST['db_pass']) || empty($_POST['db_host']) ) { 

echo "form not fully filled, reshow first form";
}
else {
?>

<HTML>
<HEAD><title>Using PHP_SELF</title></HEAD>
<BODY> 
<FORM method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>">
second form<br>
   <input type="text" name="user3"><br>
   <input type="text" name="user4"><br>
   <input type="hidden" name="nextstep" value="checkanswer">
   <input type="submit" name="submit" value="Submit Form"><br>
</FORM>
</BODY>
</HTML>

<?php
} //end function for the checkuser stage
?>

<?php
}         
if ($_POST['nextstep']=="checkanswer") { //start function for the checkanswer stage
if(empty($_POST['user3']) || empty($_POST['user4']) ) {

echo "form not fully filled, reshow first second";
}
else {
?>

complete

<?php
} //start function for the checkuser stage
?>


<?php
} 
}
else {
?>
  



<h1>Step 1: Database Information</h1><br />
<form method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>" name="form">

  <p>Enter your database connection settings. These settings will be inserted into <code>inc/config.inc.php</code> and will be used by the application.</p>
  <table style="width: 100%;">
    <tr>
      <th class="col1">Database Name</th>
      <td class="col2"><input name="db_name" type="text" size="20" /></td>
      <td class="col3">The name of the database to use.</td>

    </tr>
    <tr>
      <th class="col1">Username</th>
      <td class="col2"><input name="db_user" type="text" size="20" /></td>
      <td class="col3">Your MySQL username.</td>
    </tr>
    <tr>
      <th class="col1">Password</th>

      <td class="col2"><input name="db_pass" type="password" size="20" /></td>
      <td class="col3">Your MySQL password.</td>
    </tr>
    <tr>
      <th class="col1">Database Host</th>
      <td class="col2"><input name="db_host" type="text" size="20" value="localhost" /></td>
      <td class="col3">Most likely won't need to change this value.</td>
    </tr>
  </table><br />
   <input type="hidden" name="nextstep" value="checkuser">
   <input type="submit" name="submit" class="button" style="float:right;" value="Submit Form ›"><br>
</form>






<?php
}
?>

     </div>
    </div>
<br class="clr" />
  </div>

<br class="clr" />
   <div id="footer">
    <div class="footer_inner">
© 2010 | Bucket
    </div>
   </div>

</body>
</html>

I currently have the else message echoing on a different page.

robert_gsfame · May 8, 2010

If you are going to use php, i always redirect the page into the same page and run the script there instead of having another page

so i use this <form name="form1" method="post" action="<?php echo $_SERVER['PHP_SELF'];?>">

but when u are going to use javascript then just check whether the textbox has been filled based on their 'id'

so it goes like this

and this code between the head tag

function validate(){

if(document.getElementById("text1").value==""){

alert('You have to fill the textbox');}

}

</script>

Hope it helps!

Sign In

Display error message on same page if all fields not filled out?

Recommended Posts

Russia

Link to comment

Share on other sites

robert_gsfame

Link to comment

Share on other sites

Archived

Browse

Activity

Important Information