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

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">'. $html .'</textarea>';
?>
Check GET sessions
check_get_sessions.php
<?php
session_start();
if(isset($_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)