PHP: Generate HTML as plaintext and put in a textbox issue

Question

refering as previous question here HTML Generator: Convert HTML to PlainText and put in a textbox using PHP

Now i got some problems even if the reply produce the expected result.

I got these 3 pages:

Page1.php

// This page contain two columns, one for the form that take the 
variables, and other one that contain the iframe that must to display the plaintext

Page2.php

// Cutted code that take $_GET variables and store in $_SESSION

$html = file_get_contents('page3.php');

echo '<textarea readonly style="border:none;resize:none" rows="50" cols="116" value="'. $html .'"></textarea>';

Page3.php

// This is the file page3.php that must to be in plaintext, but first
 it must take the variables from $_SESSION and complete the code

Now I get the plain text file but the variables aren't passed since i've stored them in session. i got $var instead of the value.

And the textbox displays only half of the file, not showing the <link> and the whole <style> tags.

Answer 1

<textarea> does not have value.

You need to echo that variable inside the tags.

$html = "Text here";
echo '<textarea readonly style="border:none;resize:none" rows="50" cols="116">'. $html .'</textarea>';

"it must take the variables from $_SESSION and complete the code"

Also note that you are using sessions. Make sure the session was started having session_start(); at the top of that page and for any other pages that may be using sessions.

• It is required.
• http://php.net/manual/en/function.session-start.php

Example:

session_start();

if(isset($_SESSION['var'])){
   $_SESSION['var'] = "var";
}

else{
   echo "Session is not set.";
}

N.B.: Make sure you are not outputting before header.

Consult the following on Stack if you get a headers sent notice/warning:

• How to fix "Headers already sent" error in PHP

Add error reporting to the top of your file(s) which will help find errors.

<?php 
error_reporting(E_ALL);
ini_set('display_errors', 1);

// Then the rest of your code

Sidenote: Displaying errors should only be done in staging, and never production.

---

Test example which proved successful, echoing var inside <textarea>:

<?php 
session_start();

if(isset($_SESSION['var'])){
   $_SESSION['var'] = "var";

$var = $_SESSION['var'];
}

else{
   echo "Session is not set.";
}

// $html = "Text here";

$html = $var;
echo '<textarea readonly style="border:none;resize:none" rows="50" cols="116">'. $html .'</textarea>';

---

Edit:

Base yourself on the following model to assign GET arrays to sessions arrays.

<?php 
session_start();

$_GET ['lb1'] = "lb1";
$lb1 = $_GET ['lb1'];
$_GET ['lb1'] = $_SESSION["lb1"];
$_SESSION["lb1"] = $lb1;
//echo "Hey LB1 " . $lb1;
$lb1_session = $lb1;

$_GET ['lb2'] = "lb2";
$lb2 = $_GET ['lb2'];
$_GET ['lb2'] = $_SESSION["lb2"];
$_SESSION["lb2"] = $lb2;
//echo "Hey LB2" . $lb2;
$lb2_session = $lb2;

$html = $lb1_session . "\n". $lb2_session;
echo '<textarea readonly style="border:none;resize:none" rows="50" cols="116">'. $html .'</textarea>';

?>

<a href="check_get_sessions.php">Check GET sessions</a>

check_get_sessions.php

<?php 
session_start();

if(isset($_SESSION['lb1'])){

   $lb1_session = $_SESSION['lb1'];

   echo $lb1_session;
}


if(isset($_SESSION['lb2'])){
   $lb2_session = $_SESSION['lb2'];

   echo $lb2_session;
}

$html = $lb1_session . "\n". $lb2_session;
echo '<textarea readonly style="border:none;resize:none" rows="50" cols="116">'. $html .'</textarea>';

That's the best I can offer you.

Doing $html = $lb1_session . "\n". $lb2_session; you can use "\n" as seperators between each variable to be echo'd. Or, <br> if you want; the choice is yours.

The above assigns the $html variable to chained variables. You can add the others that may need to be added $lb3, $lb4, $lb5 etc.

Good luck! (buon fortunato)