PHP - Undefined Variable? Basic Mistake... ~sigh~

Hi there,

First of all, I want to present the diagram that I'm working on.
-----------
Diagram
-----------
step2_a.php --|
step2_b.php --|---> output.php
step2_c.php --|       (Process is included here)
step2_d.php --|


and here are the corresponding codes:

step2_x:
Code: [Select]
. . .
<form action="output.php" method="post" name="a">
req1: <input type="text" name="a_req_1">
req2: <input type="text" name="a_req_2">
. . .
<input type="submit">
</form>
------
. . .
<form action="output.php" method="post" name="b">
req1: <input type="text" name="b_req_1">
req2: <input type="text" name="b_req_2">
. . .
<input type="submit">
</form>
. . .
. . .

output.php:
Code: [Select]
<?php
$form_name = $_POST['a'];
if($form_name = "a") {
//variables for a goes here
        //code goes here
}
elseif($form_name = "b") {
//variables for b goes here
        //code goes here
}
elseif($form_name = "c") {
//cariables for c goes here
        //code goes here
}
elseif($form_name = "d") {
//variables for d goes here
        //code goes here
}
else {
//code goes here
}
?>
Now, here's the problem. output.php always sees the primary condition as true. Even the data came from step2_b, the code does not recognize it. I tried to use "==" instead of "=" but the code sees the arguments as false so it executed the code on "else".

How can I make the code distinguish the source of the data so that it would execute the right set of commands?

Thanks in advance.

Hello,

I have just upgraded my wampserver and with it MySQL, PHP and PhpMyAdmin versions. And my scripts, which ran normally before, not burst hundreds of undefined variable and undefined index notices. I realize it's "notices", not "errors" but this is quite irritating. I believe it might be due to some upgrade in PHP scripting rules or something but I don't know what. I hope you can help me.

The first type of notice is "undefined variable". This function will return the notice if I remove the bold red line, where I define the variable as empty before I use it in the loop. I didn't need to do this before.
function statistics($array) {

[color=red][b]$list = '';[/b][/color]

if(is_array($array)) {
foreach($array as $name => $value) {
// Rip out the name of the client.
$list .= "<li>".$name." - ";
// set an integer so we know how many tier2 values we have read.
$x = 0;
foreach($value as $difference => $sum_total) {
// if this is the more than the first tier2 values, use a '+' between the units.
$list .= (++$x > 1) ? " + ".$sum_total." ".$difference : $sum_total." ".$difference;
}
// close the line out.
$list .= "</li>";
}
}
return $list;
}

To avoid the 10+ like notices on the page I declare them empty before the variable's first occurrence. But this sounds stupid to me. Wasn't this one of PHP's benefits, not to have to declare the variable before using it?

I also get about 30+ undefined index notices, e.g.
Quote

Notice: Undefined index: COMPANY XXX in F:\wamp\www\Project Management\main.php on line 37

Notice: Undefined index: USD in F:\wamp\www\Project Management\main.php on line 37

Notice: Undefined index: USD in F:\wamp\www\Project Management\main.php on line 41


Here are those lines:
$income_total = calculate("income");
foreach($income_total as $row) {
$clientID = $row['clientID'];
$clientname = $row['clientname'];
//$client = "<a href=\"index.php?page=Client&amp;do=view&amp;clientID=$clientID\">".$clientname."</a>";
$client = "<a href=\"index.php?page=Project&amp;do=view&amp;sortby=$clientID\">".$clientname."</a>";
$currency = $row['currency'];
$client_sum = $row['client_sum'];
$year_sum = '';
$year_sum  += $client_sum;
$income = '';
$income[$client][$currency] += $client_sum;

$income_list = statistics($income);
$income_all = '';
$income_all[$currency] += $client_sum;
}


Line 37 is: Quote

$income[$client][$currency] =

It's the values assigned to $client and to $currency that seem to cause the notice.

How do I deal with this? I don't just want to turn error/notice display off, I want to resolve this issue.

I am pretty sure I defined these, by making it something like
$blah="blah" and `blah` = ' {$blah}'
So why am I getting these errors =

Notice: Use of undefined constant petid - assumed 'petid' in /home/vhosts/foggyjungle.6te.net/viewpet_forum.php on line 38

Notice: Use of undefined constant adopter - assumed 'adopter' in /home/vhosts/foggyjungle.6te.net/viewpet_forum.php on line 41

Notice: Undefined variable: fulldate in /home/vhosts/foggyjungle.6te.net/viewpet_forum.php on line 44

Fatal error: Call to undefined function showpet_forum() in /home/vhosts/foggyjungle.6te.net/viewpet_forum.php on line 45



$time = mysql_query("SELECT * FROM `pets_adopted`");
$date = mysql_fetch_array($time);
$fulldate = "$date[fulldate]";
$halfdate = "$date[halfdate]";

function check(){
$pid = mysql_real_escape_string($_GET['id']);
$result = mysql_query("SELECT * FROM `pets_adopted` WHERE `id` = '{$pid}'");


while($row = mysql_fetch_array($result, MYSQL_ASSOC))

{

$results = mysql_query("SELECT * FROM `pets_list` WHERE `id` = '{$row[petid]}'");
$pet = mysql_fetch_array($results);

$results2 = mysql_query("SELECT * FROM `users` WHERE `id` = '{$row[adopter]}'");
$usercc = mysql_fetch_array($results2);



There's the snippet.  Thank you for any help. I am just really lost.

I have just re-installed Xampp and suddenly my sites are now displaying lots of:

Notice: Use of undefined constant name - assumed 'name' in ...
Notice: Use of undefined constant price - assumed 'price' in ...

this is an example of the line its refering too:

$defineProducts[1001] = array(name=>'This is a product', price=>123);

hi,
I need help really badly for my PHP-Postcard Script. Basically it sends the card out but the URL does not work, I get the following error message:

The URL is not valid and cannot be loaded

It also states that
Notice: Undefined index: www.voluntary.awardspace.co.uk in /home/www/voluntary.awardspace.co.uk/Postcard.php on line 25
Notice: Undefined index: Postcard.php in /home/www/voluntary.awardspace.co.uk/Postcard.php on line 25

See Code below:

<?php

session_start();
//check error log
ini_set('display_errors', 1);
ini_set('log_errors', 1);
ini_set('error_log', dirname(__FILE__) . '/error_log.txt');
error_reporting(E_ALL);

// CHANGE PARAMETERS HERE BEGIN
$senderName  = " Holidays From Home "; // Eg.: John's Postcards
$senderEmail = "chris01@voluntary.awardspace.co.uk";  // Eg.: john@postcard.com
// Change only if you have problems with urls
$postcardURL = "http://".$_SERVER["www.voluntary.awardspace.co.uk"].$_SERVER["Postcard.php"];
// CHANGE PARAMETERS HERE END
$result = 0;
$msg = "";
$msg1 = "";
$pic = "";
function displayPhotos()
{
 global $pic;
 $columns = 5;
 $act = 0;
 $act1 = 0;
 // Open the actual directory
 if($handle = opendir("thumbs"))
 {
  // Read all file from the actual directory
  while($file = readdir($handle))
  {
   if(!is_dir($file))
   {
    if(isset($pic[1]))
    {
     if($pic[1] == $act1){$sel = "checked";}
     else{$sel = "unchecked";}
     }
    if($act == 0){echo "<tr>";}
    echo "<td align='center'><img src='thumbs/$file' alt='postcard'/><br/><input type='radio' name='selimg' value='$file,$act1' $sel/></td>";
    $act++;
    $act1++;
    if($act == $columns){$act = 0;echo "</tr>";}

       }
    }
  echo "</tr>";
  }    
 }
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "DTD/xhtml1-transitional.dtd">
<html>
<head>
 <title>Micro Postcard</title>
 <link href= "style/style.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="main">
<div class="style1" id="caption">
<div align="left" class="style1"></div>
</div>
   <?php //makes sure form is correctly filled in 
 if(!empty($_POST["submit"]))
 {
  if(empty($_POST["selimg"])){$msg = "Please select an image from above!";$result = 3;}
  else{$pic = explode(",",$_POST["selimg"]);}
  if(empty($_POST["email"]) && empty($result)){$msg1 = "You must enter an email address!";$result = 3;}
  $secCode = empty($_POST["secCode"]) ? "" : strtolower($_POST["secCode"]);
  if($secCode == $_SESSION["securityCode"] && $result != 3)
  {
   $filename = date("YmdGis");
   $f = fopen("messages/".$filename.".txt","w+");
   fwrite($f,$pic[0]."\n");
   fwrite($f,$_POST['email']."\n");
   fwrite($f,stripslashes($_POST["message"])."\n");
   fclose($f);
   // Compose the mail
   $from = "From: $senderName <$senderEmail>\r\n";
   $replay = "Reply-To: $senderEmail\r\n";    
   $params = "MIME-Version: 1.0\r\n";
   $params .= "Content-type: text/plain; charset=iso-8859-1\r\n";
   $mailtext = "You have just received a Virtual Postcard!\r\n\r\n
                You can pick up your postcard at the following web address:\r\n
                $postcardURL?show=$filename\r\n\r\n
                We hope you enjoy your postcard, and if you do, please take a moment to send a few yourself!\r\n\r\n
                Regards,\r\n
                Holidays From Home\r\n
                $postcardURL";
   // Send email
   @mail($_POST["email"],"You've received a postcard",$mailtext,$from.$replay.$params);
   echo "<center>
          Your postcard was sent successfully!<br /><br />
          <img src='images/$pic[0]' alt='postcard' /><br /><br /><br />".stripslashes($_POST["message"]).
        "</center>";
   $result = 1;
   }
  else{if($result != 3){$result = 2;}}
  }
 if(!empty($_GET["show"]))
 {
  $file = $_GET["show"];
  $content = file("messages/$file.txt");
  $pic = $content[0];
  unset($content[0]);
  unset($content[1]);
  foreach($content as $value){$main .= $value;}
  echo "<center>
         Your postcard!<br /><br />
         <img src='images/$pic' alt='postcard' /><br /><br /><br />$main
        </center>";
  }
 if((empty($result) || $result == 2 || $result == 3) && empty($_GET["show"]))
 {
  echo "<form action='#' method='post'>
         <table align='center'>";
         displayPhotos();
  echo  "</table>
         <div style='color:#f00;font-size:16px;'>$msg</div>        
         <h2>Fill in the Form and then click on Send Card!!</h2>
         <table width='100%'>
          <tr><td>Send to (email address):</td><td><div style='color:#f00;font-size:16px;'>$msg1</div><input type='text' name='email' size='30' value='".$_POST["email"]."' /></td></tr>
          <tr><td>Message:</td><td><textarea name='message' rows='10' cols='40'>".stripslashes($_POST["message"])."</textarea></td></tr>
          <tr><td colspan='2'>".($result == 2 ? "<p style='color:#f00;font-size:16px;'>Sorry the security code is invalid! Please try it again!</span></p>" : "&nbsp;")."</tr>
          <tr>
           <td>Security code: <input class='text' name='secCode' type='text' size='10' />
           </td><td><img src='securityCode.php' alt='security code' border='1' /></td>
          </tr>
          <tr><td colspan='2'>&nbsp;</tr>
          <tr><td colspan='2' align='left'><input type='submit' value='Send card!' name='submit'/></td></tr>
         </table>
        </form>";
  }
?>

Absolutely any help would be much appreciated. I want ot know is there a way round this problem?

Here is the http://voluntary.awardspace.co.uk/Postcard.php

I am absolutely desperate to solve this burning issue