PHP - How To Create A 2nd Temporary Index Page?

Hello folks, well what I mean by temporary variables are variables like error messages or success messages that appear after a form has been submitted.  I want to be able to kill these variables when the page is refreshed and return the page to its defualt state.  For example, I'm making this simple page which is basically a form that ask users for some information, then upon submit, stores the  in a database and prints a success message.  If the form is filled out incorrectly or some form fields are left blank, then error messages are printed. What I really want is for these messages to disappear when the page is refreshed.  My current model uses a second page to handle the form, and then upon succes or upon encountering an error, redirects to the form page, passing the error or success variables via the url to the form page where they are printed out.  What can I do differently to achieve what I want (ie kill variables upon page refresh)? Below are the form page, and the page that handles the form respectively.

Code: [Select]

<form method="post" action="send_email.php">


<div id="contact_form">


<div align="left" class="green18">Contact Us</div> <br/> <br/>


<label>Your Name:</label> <input class="texta" name ="name" size="20"      maxlength="49"/> <br/> <br/>

<div class ="error" style="position:relative;bottom:40px;left:128px" >

<?php //Retrieve the encoded errors string from send_email.php page

$errors_string=$_GET['errors_string'];

//Explode the decoded errors string back to an array.
                
$errors = explode(",", $errors_string);
echo $errors[0];?>

</div>

<label>Your Company Name:</label> <input class="texta" name ="company" size="30" maxlength="66"/> <br/> <br/>


<div class ="error" style="position:relative;bottom:40px;left:128px" >

<?php //Retrieve the encoded errors string from send_email.php page

$errors_string=$_GET['errors_string'];

//Explode the decoded errors string back to an array.
                
$errors = explode(",", $errors_string);
echo $errors[1];?>

</div>

<label>Subject(Optional):</label> <input class="texta" name ="subject" size="20" maxlength="49"/>  <br/> <br/>


<label>Email:</label> <input class="texta" name ="email" size="20" maxlength="49"/>  <br/> <br/>


<div class ="error" style="position:relative;bottom:40px;left:128px" >

<?php //Retrieve the encoded errors string from send_email.php page

$errors_string=$_GET['errors_string'];

//Explode the decoded errors string back to an array.
                
$errors = explode(",", $errors_string);
echo $errors[2];?>

</div>


<label>Message:</label> <textarea style="float:left" class="" name ="message" cols="40" rows="3"> </textarea> <br/> <br/>

<div class ="error" style="position:relative;bottom:-19px;left:-260px" >

<?php //Retrieve the encoded errors string from send_email.php page

$errors_string=$_GET['errors_string'];

//Explode the decoded errors string back to an array.
                
$errors = explode(",", $errors_string);
echo $errors[3];?>

</div>


<button class="button" type ="submit" name ="submit">Submit</button> <br/>

<div id ="sent" >

<?php //Retrieve the user id from send_email.php page

$sent=$_GET['sent'];

$send_msg = urldecode($sent);  echo $send_msg;  ?>

</div> <!--closes sent-->


</div>


</form>
 




Code: [Select]


<?php


//address error handling

ini_set ('display_errors', 1);
error_reporting (E_ALL & ~E_NOTICE);




if (isset($_POST['submit'])) {
 
    $errors = array();


// Connect to the database.

        require('config/config.php');


//Check for errors.


//Check to make sure they entered their name and it's of the right format.

if (eregi ("^([[:alpha:]]|-|')+$", $_POST['name'])) {

        $a = TRUE;

    } else {

        $a = FALSE;

        $errors[0] = '*Please enter a valid name.';


   }



//Check to make sure they entered their company name.

if (!empty ( $_POST['company'])) {

        $b = TRUE;

    } else {

        $b = FALSE;

        $errors[1] = '*Please enter company name.';


   }



//Check to make sure email is valid.

if(eregi("^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,3})$", $_POST['email'])) { 
 

         $c = TRUE; 


}else { 

         $c = FALSE;

      $errors[2] = '*Please enter a valid email address.'; 

      } 




//Check to make sure they entered their message.

if (!empty ( $_POST['message'])) {

        $d = TRUE;

    } else {

        $d = FALSE;

        $errors[3] = '*Please enter your message.';


   }




 

//If no errors

if (empty($errors)) {

//Create variables for all the post values.

 $name = $_POST['name'];

 $company = $_POST['company'];

 $email = $_POST['email'];

 $message = $_POST['message'];

 $ip = $_SERVER[REMOTE_ADDR];

 $date = (date("Y/m/d:G:i:s"));

 $timestamp = ( mktime(date(H), date(i), date(s), date(m) , date(d) , date(Y)));


//Formulate the insert query.

        $query = "INSERT INTO emails ( email_id, name, company, email, message, ip, date,timestamp) VALUES ( 0, '$name','$company','email', '$message', '$ip' , '$date', '$timestamp' )";
       
        $result = mysql_query($query) or die("Data could not be inserted into table because: " .mysql_error());



if (mysql_affected_rows() == 1) {

    
         // Display success message


          $sent_msg =     "Your email has been sent.  We will get back to you shortly.";

$sent = urlencode($sent_msg);  


         // Display contact page

header("Location: contact_page.php?sent=$sent");  exit();

}else{die("There was a problem: " . mysql_error());}
            


//Display error messages.


} else {// if errors array is not empty

//Confer the errors array into a string

$errors_string = implode(",", $errors);

//Encode the imploded string.

$error_message = urlencode($errors_string);


         // Display page

header("Location: contact_page.php?errors_string=$errors_string");  exit();


        
    }//End of if there are errors.


}//End of if submit.




?>



Also, another problem I just noticed is that, the errors[3] variable isn't getting passed back to the form page.  I don't know if it's because the url can only pass so much info to a second page. The page in question can be located he

http://creativewizz.com/contact_page.php

This topic has been moved to HTML Help.

http://www.phpfreaks.com/forums/index.php?topic=323045.0

This topic has been moved to MySQL Help.

http://www.phpfreaks.com/forums/index.php?topic=345265.0

My users table on my forum is what gets checked everytime a user refreshes to authentic them.    When killing a monster, I want users to be able to grab items and it will insert them into their inventory. I have this part done already. But I want them to have a plethora of loot available that drops from a mob, and once they click the specific item it will then be inserted into their inventory (server database).   I'm storing the Temporary Item Data in a PHP session variable. Once they kill a monster, the Tempory Item Data variable get's filled with the specific loot and then the user will have the option to choose what items they want to go into their inventory.   My problem is, if they open the game in a new browser they will get a new session id. Since I'm authenticating them through my users table, can I just make a new column called session_id and just use php's session_id() before every session start so no matter which browser they're on they will have the same session right?    You might think, well why dont you just store the temporary item data in a mysql field or rows instead? I want to try to minimize mysql usage as much as possible, as players will be CLICKING a lot to kill mobs, it is most likely very mysql demanding as well and I want to be intuitive about it. I just want to use temporary session data for the loot. Then once the user clicks an item they want, it is EXTRACTED from their tempory item data variable, then I will use MYSQL to insert those items into their inventory.    Is this a fair and intuitive way to do temporary data for item loot? For example, in action RPG's like Path of Exile you kill a group of mobs and you see a shit ton of loot on the floor. (I imagine that loot is just temporary waiting for someone to pick it up right?) Once you do pick it up, mysql is then called to save it right? That's the same logic I have with my web based game. Is using a session variable to store that temporay loot.   Is this an intuitive way to do this, or are there other ways?
Edited by Monkuar, 24 November 2014 - 01:24 AM.

Hi Guys I trying to download files and I have this error message, hopelly you guys can help me please Warning: Cannot modify header information - headers already sent by (output started at /home/content/04/12746204/html/Digital/core/inc/init.inc.php:6) in /home/content/04/12746204/html/Digital/download.php on line 14

Warning: Cannot modify header information - headers already sent by (output started at /home/content/04/12746204/html/Digital/core/inc/init.inc.php:6) in /home/content/04/12746204/html/Digital/download.php on line 15

Warning: Cannot modify header information - headers already sent by (output started at /home/content/04/12746204/html/Digital/core/inc/init.inc.php:6) in /home/content/04/12746204/html/Digital/download.php on line 16

Warning: Cannot modify header information - headers already sent by (output started at /home/content/04/12746204/html/Digital/core/inc/init.inc.php:6) in /home/content/04/12746204/html/Digital/download.php on line 17

Warning: Cannot modify header information - headers already sent by (output started at /home/content/04/12746204/html/Digital/core/inc/init.inc.php:6) in /home/content/04/12746204/html/Digital/download.php on line 18     This is the code I use to force the download

<?php
include('core/inc/init.inc.php');
   if(isset($_GET['file_id'])) {  
     $file_id=(int)$_GET['file_id'];    
     $file=mysql_query("SELECT file_name, file_expiry FROM files WHERE file_id=$file_id");    
     if(mysql_num_rows($file)!=1){   
       echo'Invalid file Id';
     }else{
       $row=mysql_fetch_assoc($file);
       if ($row['file_expiry']<time()){
          echo'This file has expired'; 
       }else{
              $path="core/files/{$row['$file_name']}";
              header('Content-Type:application/octet-stream');
              header('Content-Description:File Transfer');
              header('Content-Transfer-Encoding:binary');
              header("Content-Disposition:attachment;filename=\"{$row['file_name']}\"");
              header('Content-Length:'.filesize($path));
              readfile($path);
       }
     }
}
?>

Thank you for your help.....