The problem is superglobals (post) values are not defined

[JoshEir]

I am having trouble with passing values with a POST to another php file.  I am getting the error :  undefined index : productID and undefined index: filename.  I have also tried :  <form   method = \"POST?pdib=$processID&filename=$filename\" action = \"upload2.php\"  >  When I look at the array of superglobals, they are both defined.  Thank you! 

 Here is the code :

drawfirsttwoforms:

$sql = "SELECT ProductFilename, ProductName, ProductID, ProductDescription,ProductCost,ProductQuantity, ProductCatTitle FROM products 
INNER JOIN customers ON customers.CustomerID = products.CustomerID 
WHERE ((products.ProductKeyWord1 = ?) 
OR (products.ProductKeyWord2 = ?) OR (products.ProductKeyWord3 = ? ))  AND (products.ProductCatTitle = ?) ";

$stmt = $dbo->prepare($sql);
$stmt->bindParam(1, $keyword1);
$stmt->bindParam(2, $keyword1);
$stmt->bindParam(3, $keyword1);
$stmt->bindParam(4, $titleOfSelectedDropDown);

$stmt->execute();

while ($row = $stmt->fetch()) {

//these variables do have values here
$productID = $row['ProductID'];
$filename = $row['ProductFilename'];

$string1 .=  "  
<div  class = \"A\" id = \"$mainDiv\">
<p id = \"link1\">product id   :$productID</p>
<p>category id  :$category</p>
<div class = \"A\" id = \"endz\"></div>
<div class = \"A\" id = \"startz\"></div>
<div class=\"container\">
<div id = \"testing\" >testing <div>
<div id = \"$displayID\" >  </div>
<div class=\"row\" >
<div class=\"col\">
	
	<form   method = \"POST\" action = \"upload2.php\"  >
      
      
    
	<input type=hidden id='$productID' name= '$productID' value=\"A\">
	<input type=hidden id=\"$filename\" name=$filename value=\"B\">
	
      
      
      <button value = \"Submit\" type = \"submit\"  >submit it</button>
	</form>
	<iframe id=\"upload_target\" name=\"upload_target\"  style=\"width:0;height:0;border:0px solid #fff;\"></iframe> 
	<img width=\"120\" height =\"120\"  id = \"$imageID\"  src=\"../php proj/uploads/$filename?<?php echo filemtime($filename)?>\">
	<button    onclick = \"imageRefresh( '{$filename}', '{$imageID}', '{$_SESSION["msg"]}' )\" >Display</button>
	</div>


AFTER:
  

if (!isset($myObj) && isset($string1))
{
$myObj = new stdClass();
$myObj->htmlstuff = $string1;


//Encode the data as a JSON string
$jsonStr = json_encode($myObj);
echo $jsonStr;
}

 

function printHTML1(keyword){ 
	
	
	const element = document.getElementById("dropDown1");
		
	//const checkValue = element.options[element.selectedIndex].value;
	const checkText = element.options[element.selectedIndex].text;
	
	var val1 = checkText;

	var xmlhttp = new XMLHttpRequest();
	
	
	var keyword1 = keyword;
	var url = "drawfirsttwoforms.php?keyword=" + keyword.value + "&" + "val1=" + val1;
	


	xmlhttp.onreadystatechange = function() {
		
	if (this.readyState == 4 && this.status == 200) {
		
		
		var jsonData = JSON.parse(this.responseText);
		var answerHtml = jsonData.htmlstuff;
		document.getElementById("codehere").innerHTML = answerHtml;

		createAndModifyDivs();


		}
	};
	
	xmlhttp.open("GET", url , true);
	
	xmlhttp.send();
	
	
}

 

upload2.php


<?php
session_start();
$productID = $_POST['productID'];
$filename = $_POST['filename'];

 

[Barand]

10 minutes ago, JoshEir said:

<input type=hidden id='$productID' name= '$productID' value=\"A\">

<input type=hidden id=\"$filename\" name=$filename value=\"B\">

If $productID contains '123' and $filename contains 'abc.txt' then upload2 will receive

• $_POST['123'] with a value of 'A'
• $_POST['abc.txt'] with a value of 'B'

It looks like you need

<input type='hidden' name='productID' value='$productID'>
<input type='hidden' name='filename' value='$flename'>

 

[JoshEir]

Still doesn't work, its odd.

[Barand]

put this at the top of upload2.php so you can see what's being posted to it

echo '<pre>' . print_r($_POST, 1) . '</pre>';

 

[JoshEir]

The response is Array()

[Barand]

Then the form data isn't being submitted (to upload2)

[JoshEir]

Well, as you can see the action is that, however there is an iframe.  Any clue?

[JoshEir]

Oh,

Array ( [1439] => 1439 [A5_png] => A5.png )

[Barand]

Not from what you've posted. I get no sense of structure or sequence so I don't know how it all hangs together.

[JoshEir]

I just updated.

 

[Barand]

1 minute ago, JoshEir said:

Oh,

Array ( [1439] => 1439 [A5_png] => A5.png )

Looks like you still have

name='$productID'

instead of

name = 'productID'

[JoshEir]

That seemed to do it, what was the problem?

[Barand]

1 minute ago, JoshEir said:

what was the problem?

The bit I gave you a fix for in my first reply.

[JoshEir]

Ahh, thank you!  How is England?

[Barand]

Cold, cloudy, wet and in covid lockdown. Apart from that everything's great.