PHP - Reading From Session Array

I am trying to print out rows of images and pieces them to form a bigger map  but having a little trouble printing out correctly.

I am doing the following...

A numbered text file with rows of numbers like these:

33.txt
Code: [Select]
48,48,49,49,48,47,48,49,48,50,50,48,50,49,48,49,49,49
49,11,4,8,50,11,4,4,8,48,11,4,4,8,48,11,8,50
...
The number represent different area and the number in the text file represent each individual pieces of that particular area. the number of rows and columns are arbitrary.



Example:

Here is my code at the moment but there is something wrong in it as I can't seems to correctly print everything out...
Code: [Select]
<?php 
$file = file_get_contents("33.txt"); // can be any numbered text files
$entries = explode("\n", $file);
echo "Entries <br /><hr />";

for($i=0;$i < sizeof($entries);$i++){
for($j=0;$j < sizeof($entries);$j++){
$data = explode(",", $entries[$j]);
   echo "<td align=\"center\" background=\"test/33_";
   echo $data[$j];
echo ".gif\" width=\"65\" height=\"65\">
             <table border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"65\" height=\"65\">
             <tbody><tr>
                 <td>
                 <center></center>
                     </td>
                 </tr></tbody>
             </table>
             </td>";
}
}
?>

This topic has been moved to Third Party PHP Scripts.

http://www.phpfreaks.com/forums/index.php?topic=346993.0

I am creating  a poll with a form using check boxes.  The resulting associative array is evaluated and   1 is to be added to values selected.  I have that part down.  I want to write the associative array to a file and the next time someone uses the form the values are read from the file, values added and then write it back to a file.  I thought it would be better to do it like this rather than query a db, add values, etc.  Any ideas on how to do this? This is the array I want to start with:
Code: [Select]
$vetservice = array(
"Korea"=>0,
"Vietnam"=>0,
"Grenada"=>0,
"Cold War"=>0,
"Panama"=>0,
"Desert Storm"=>0,
"Mogadishu"=>0,
"OEF"=>0,
"OIF"=>0
);
Values from the post array would be added to the starting value and wrote back to a text file.

This topic has been moved to PHP Applications.

http://www.phpfreaks.com/forums/index.php?topic=325339.0

Hello all,

I have an error handler that I need to append messages to (First name not right, Last name not right, etc)

I'm using a session array to handle all error messages titled GORB.

How come this code won't work?


$_SESSION['GORB']['message'][] = "First name wrong";
$_SESSION['GORB']['message'][] = "Last name wrong";


How can I get it to work? I already have the handler output written and functioning fine, I just need to get it to loop over an array of errors instead of just one.

why is it that i have to click add to cart 2 time inorder for the eventname and eventinfo to show up
if i click one time it add to the cart but it shows nothing

Code: [Select]
<?php 

//if user attempts to add something to the cart
if (isset($_POST['tid'])) {
    $tid = $_POST['tid'];
    $howmany = $_POST['howMany'];
$wasFound = false;
$i = 0;
// If the cart session variable is not set or cart array is empty
if (!isset($_SESSION["cart"]) || count($_SESSION["cart"]) < 1) { 
    // RUN IF THE CART IS EMPTY OR NOT SET
$_SESSION["cart"] = array(1 => array("item_id" => $pid, "quantity" => $howmany));
} else {
// RUN IF THE CART HAS AT LEAST ONE ITEM IN IT
foreach ($_SESSION["cart"] as $each_item) { 
      $i++;
      while (list($key, $value) = each($each_item)) {
  if ($key == "item_id" && $value == $tid) {
  //there will recive a message
  
  $msg = "Item is already in the cart";
  $wasFound = true;
  } // close if condition
      } // close while loop
       } // close foreach loop
   if ($wasFound == false) {
   array_push($_SESSION["cart"], array("item_id" => $tid, "quantity" => $howmany));
   }
}
header("location: cart.php"); 
    exit();
}
?>

<?php 
//render the cart for the user to view on the page
$cartOutput = "";
$cartTotal = "";
$product_id_array = '';
if (!isset($_SESSION["cart"]) || count($_SESSION["cart"]) < 1) {
    $cartOutput = "<h2 align='center'>Your shopping cart is empty</h2>";
} else {
// Start the For Each loop
$i = 0; 
    foreach ($_SESSION["cart"] as $each_item) { 
$item_id = $each_item['item_id'];
$sql = mysql_query("SELECT * FROM events WHERE id='$item_id' LIMIT 1");
while ($row = mysql_fetch_array($sql)) {
$eventname = $row["eventname"];
$eventinfo = $row["eventinfo"];
$studentsprice = $row["studentsprice"];
}

//adding the price of the tickets 
//getting the total
$totalprice = $studentsprice * $howmany;
setlocale(LC_MONETARY, "en_US");

//this will amke it so it looks like real money
$totalprice = money_format("%10.2n", $totalprice );

$cartOutput = "";

//this is the table the will replace the table row below
//this is in order
$cartOutput.= "<tr>";
$cartOutput .= "<td>".$eventname."</td>";
$cartOutput .= "<td>".$eventinfo."</td>";
$cartOutput .= "<td>".$studentsprice."</td>";
$cartOutput .= "<td>".$howmany."</td>";
$cartOutput .= "<td>".$totalprice."</td>";
$cartOutput .= "<td>".X."</td>";
$cartOutput .= "</tr>";
    } 
}
?>

how do i set a session array?

e.g. set session with variable $value = 13.

then set the next $value = 15 .


= 13 and [1]=15

how do i set this session. up? so it keeps on updating the array

Hi Guys,

How can I send a session array through the URL and then use the values on the other page to create an SQL query?

Any Ideas?

Thanks in advance.

Ed

I am trying to send some arrays to another page using sessions. The first array I send works fine when I simply print the array on the next page but the second and third arrays are not being created.

Code
Code: [Select]
<?php
 
require("dbconn.php");
$query = mysql_query("SELECT username, idcustomers FROM customers
WHERE username='$customeruser' ");

if (!$query) {
die('Invalid query: ' . mysql_error());}

$row = mysql_fetch_assoc($query);
echo $row['username'];
$id=$row['idcustomers']; 
echo $id;

$productquery = mysql_query("SELECT productid, price1, price2, price3, price1_type, price2_type, price3_type, prod_name, price_det FROM  product_pricing
WHERE idcustomers='" . mysql_real_escape_string($id) . "' ORDER BY productid");

if (!$productquery) {
die('Invalid query: ' . mysql_error());}


$counter = 1;
$itemcode_array = array();
while ($row = mysql_fetch_assoc($productquery)) {



?>
<tr class="ordertable">
<td class="table_item" name="itemcode<?php echo $counter;?>"><?php echo $row['productid']; ?></td><?php $itemcode_send = $row['productid']; array_push($itemcode_array, $itemcode_send); ?>
<td class="table_name" name="prodname<?php echo $counter;?>"><?php echo $row['prod_name']; ?></td><?php $prod_name_send = $row['prod_name']; array_push($prodname_array, $prod_name_send); ?>
<td class="table_pdet" name="prod_det<?php echo $counter;?>"><?php echo $row['price_det']; ?></td><?php $price_det_send = $row['price_det']; array_push($pricedet_array, $price_det_send); ?>
<td class="table_price" name="price1<?php echo $counter;?>"><?php echo $row['price1_type']; ?> $<?php echo $row['price1']; ?></td>
<td class="table_quant" name="quant1"><input type="text" name="quant1<?php echo $counter;?>" size="4" /></td>
<td class="table_price" name="price2<?php echo $counter;?>"><?php echo $row['price2_type']; ?> $<?php echo $row['price2']; ?></td>
<td class="table_quant" name="quant2"><input type="text" name="quant2<?php echo $counter;?>" size="4" /></td>
<td class="table_price" name="price3<?php echo $counter;?>"><?php echo $row['price3_type']; ?> $<?php echo $row['price3']; ?></td>
<td class="table_quant" name="quant3"><input type="text" name="quant2<?php echo $counter;?>" size="4" /></td>
<td class="table_note" name="notes"><input type="text" name="note<?php echo $counter;?>" size="28" /></td>
</tr>

<?php
($counter++);
} ?>
<?php mysql_close($dbConn); ?>

</table>
<p><input type="submit" name="submit" value="Confirm" />&nbsp;<input type="reset" /></p>
</form>


<?php print_r($prodname_array);

$_SESSION["itemcode"] = $itemcode_array;
 $_SESSION["prodname"] = $prodname_array;
 $_SESSION["pricedet"] = $pricedet_array; ?>



There is some redundant and error testing code in there.

The problem is $prodname_array; and $pricedet_array; are not being created even though $itemcode_array which is created the same way works fine. All values from the database are being displayed correctly  (eg $row['prod_name'].

Hi All,

I'm running trying to add key and values to an array on multiple pages, but it seems to override the array each time I add variables on the next page, even though the keys are different.

Each page has something like this:


Code: [Select]
<label class="yes"><input type="radio" name="form_field[<?php echo "number".$f1; ?>]" value="0" > Yes</label>
<label class="no"><input type="radio" checked="checked" name="form_field[<?php echo "number".$f1; ?>]" value="1" > No</label>
<label class="unsure"><input type="radio" name="form_field[<?php echo "number".$f1; ?>]" value="2" > Unsure</label>
I then collect it as well as other page variables with:

Code: [Select]
session_start();

foreach($_POST as $name => $value) {
$_SESSION[$name] = $value;
}
on all following pages. But rather than adding to the array it writes over it each time.

Any ideas on what's going wrong here. Should the array simply be able to continue to collect the keys or do I need to do something else?

Thanks.

Hi Guys,

I am having a small problem with an array.

I want to push information from a form into an array.

However each time I do it it just replaces the last entry in the array with the information in stead of adding a new value to the array.

Code: [Select]

<?php

// if generate is pressed
if(isset($_POST['generate'])){

// get values from form
$name = htmlspecialchars($_REQUEST['add']);
array_push($stack, $name);

print_r($stack);
}
?>


Can anybody help?

Thanks

Ed

Hello everyone and thanks in advance for the help. I am working on a permission system for a site I am creating that will be used to restrict access to various areas of the site. I have a table with all the permission that is linked to a group that the user is a member of. I then use a query to get a list of the permission ids the user is part of and put those into the session array. I used a basic login script I found online I planned on modifying to add my own features and to make more secure.

Originally it had just a member id and member name variable in the session array saved in the login script which are both working fine after login. I am using a dynamic variable to set one session variable for each permission with the id being the changing part in the variable name. The problem I found is that the new variables are not being set. When i removed the redirect from my login script so I could check the problem I found that the temp variable, which is also set before it saves to the session array, is blank as well. If I hit refresh on my browser the new variables become set and all is well.

I was talking to nvee in irc chat who said I need to make a function on the page I am redirected to that checks if the variable exists. I looked through the original code of the login script I am using and found that this seems to be how they did it as well so I added an if statement to my index page to check if the variable has a value with and without using if isset. In both cases the new variable is still not getting set. He also gave me some pointers to help make my login checks more secure but the main thing IM concerned with right now is to make my new permission variables accessible to the session. My login script is available in my pastebin.

Hi Everyone,

I'm building a custom shopping cart. I'm having trouble getting my code to work on a production server that is running PHP version 5.2.17. My test machine is running version 5.3.0 and the code works just fine. I do not have the ability to upgrade the version of PHP on the production machine. Here is part of my code. If we can fix this, I can fix the other switch cases:



//this code adds the item to the cart and creates an array and session variable for the cart. The array is multidimensional (item id1 => quantity, item id2 => quantity, item id3 => quantity and so on...).

if (isset($_GET["action"]))
{
    $action = $_GET["action"];
    $id = $_GET["id"] ;
    $q = $_GET["quantity"];
    $cart = array();

switch ($action)

{

case "add":

if ($_SESSION["cart"])

{

$cart = $_SESSION["cart"];

if (array_key_exists($id,$cart))

{

$cart[$id] = $cart[$id] + $q;

}

else

{

$cart[$id] = $q;

}

}

else

{

$cart[$id] = $q;

}

$_SESSION["cart"] = $cart;

break;

}
}

//this code displays the cart array 

if ($_SESSION["cart"])
{
    $cart = $_SESSION["cart"];

foreach($cart as $key => $value)

{

$runQ1 = mysql_query("SELECT * FROM products WHERE id='$key'") or die(mysql_error());

$results = mysql_fetch_array($runQ1);

print "<table><tr><td>$results[1]</td><td>$results[2]</td><td>$results[3]</td><td>$results[4]</td></tr></table>";

}
}
else
{

print "<table><tr><td>There are no items in your shopping cart.</td></tr></table>";

}



The cart session variable is being set but it is only holding one item at a time. If I add a second item to the cart, the 1st item disappears and only the second one is present in the session variable and the table. I'm not sure if it is a session problem or an array problem. Please help before I lose all of my hair! I don't understand why this code works on 5.3.0 and not 5.2.17...

Thanks in advance!

-Isaac

Hi everyone,

I am very new to PHP and trying to learn so please bear with me.  I have a simple form which passes fields to a PHP script:

<form method="post" action="cartaction.php">
               <p>
                  <input type="submit" name="submit" value="Buy" />
                  <input type="hidden" name="cartaction" value="add" />
                  <input type="hidden" name="item" value="steelcasserole" />
               </p>
            </form>


I am trying to produce a shopping cart type page which will display the item(s) purchased.  The problem is I have more than one submit button on the page for different products but with the same fields.

I have tried to create the cartaction.php script to save the information from the form in a session variable which will allow me to output the item(s) purchased into this page prior to sending everything to a checkout page.  I can get the information to appear for a single item but the problem is I want to output the details for each product added to the cart.  At the moment, when I go back to the products page and try to add a new item to the shopping cart it just replaces the previous item that was there rather than retaining it and adding a new item underneath.

I realise its probably really obvious but I am really new to this and getting myself confused!  Any help on how to add an item then be able to go back to the products page (with the submit buttons for each product) and add a new item underneath the existing item in the shopping cart would be much appreciated!  The code I have so far is:

$submit = $_POST["submit"];
 
//If form is submitted, call the function and save all data into the array $_SESSION['form']
if($submit = "Buy"){setSessionVars();}
 
function setSessionVars() {
 
    foreach($_POST as $fieldname => $fieldvalue) {
        $_SESSION['form'][$fieldname] = $fieldvalue;
      
        } 
                                          
          echo "<table> <tr> <td>" .'<img src="images/'.$_SESSION['form']['item'].'.jpg"' . "<td/> <td>"
          . $_SESSION['form']['item'] . "</td> <td>" . '<input type="text(30)" name="value" value="1" />
                  <input type="submit" name="puchasednum" value="Update This One Item" />' . "</td> </tr> </table>";
      
};
?>


I have the session_start() function at the very top of every page.   I have also attached the entire files for the two pages I talk about above.   Thanks

Graham

I am trying to create a website that after you receive an email you have to use the email address and password to confirm account. Then the next page allows you to change your password. I want to save the users email from the first page and use it in the SQL statement in the second page to locate the user in the DB and update the data.

There must be some problem with the way I have my code logically set up. It will make it to the 2nd step but then it will go back to the main email confirmation page.

<?php
include('common.php');
include('db.php');

session_start();
session_register('umail');
session_register('password');
session_register('pwd1');
session_register('pwd2');

  if(!isset($_POST['email']) && !isset($_POST['password']))
  {

  ?>
  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
  "BLOCKED URL">
  <html>
  <head> This is a test of my patience</head>
  <meta http-equov="Content-Type" content="text/html; charset=iso-8859-1"/>
  </head>
  <body>
  <form method="post" action="<?=$_SERVER['PHP_SELF']?>">
  Email: <input type="text" name="email" size="8" />
  password:<input type="password" name="password" size="8" />
  <input type ="submit" name ="submit" value ="submit" />
  </form>
  </body>
  </html>
  <? exit;
  }
   else
  {
  $umail = $_SESSION['umail'] = $_POST['email'];
  $password = $_SESSION['password'] = $_POST['password'];

  dbConnect("web2");
  $sql ="SELECT * FROM `user` WHERE email ='$umail'";
  $result = mysql_query($sql);
  $row = mysql_fetch_assoc($result);

    if(!$result)
    error('Contact DB admin');
    if($result='')
    error('not in db');

    if($_SESSION['umail'] != $row['email'] && $_SESSION['password'] != $row['password'])
    error('Wrong email or password');
  }



  if(!isset($_POST['pwd1']) && !isset($_POST['pwd2']))
  {

  ?>
  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

  "BLOCKED URL">
  <html>
  <head> This is a test of my patience</head>
  <meta http-equov="Content-Type" content="text/html; charset=iso-8859-1"/>
  </head>
  <body>
  <form method="post" action="<?=$_SERVER['PHP_SELF']?>">
  password: <input type="text" name="pwd1" size="8" />
  password confirmation:<input type="password" name="pwd2" size="8" />
  <input type ="submit" name ="submit" value ="submit" />
  </form>
  </body>
  </html>
  <?
  }
  else
  {
  $pwd1 = $_SESSION['pwd1'] = $_POST['pwd1'];
  $pwd2 = $_SESSION['pwd2'] = $_POST['pwd2'];

    if($_SESSiON['pwd1'] == $_SESSION['pwd2'])
    {

    dbConnect("web2");
    mysql_query("UPDATE user SET password ='$pwd1'
                WHERE email ='$umail'");
    $sql="SELECT * FROM 'user' WHERE email='$umail'";
    $result = mysql_query($sql);
    $row = mysql_fetch_assoc($result);

     if($_SESSION['pwd1'] != $row['password'])
      {
      ?>
      <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
      "(BLOCKED URl">
      <html>
      <head> This is a test of my patience</head>
      <meta http-equov="Content-Type" content="text/html; charset=iso-8859-1"/>
      </head>
      <body>
      <form method="post" action="<?=$_SERVER['PHP_SELF']?>">
      password: <input type="text" name="pwd1" size="8" />
      password confirmation:<input type="password" name="pwd2" size="8" />
      <input type ="submit" name ="submit" value ="submit" />
      </form>
      </body>
      </html>
      <?
      }
      else
      {
      error(' the man');
      session_unset();
      session_destroy();
      }
    }
  }

?>