getting php as text on output - php

Question

first of all this is my php code. i am trying to get this code as text on output. not sure how i do that. with html we can do \" to insert it inside php but how do i get this done like that on my code ?
<?php
$stringData = "
// Start here
<?php
$width = $_GET['width'];
$heigh = $_GET['height'];
echo 'Hello';
?>
// End here
";
?>
i have marked that part that i want to get it on output as text but when i put it like that on page i get syntax error not sure why.
EDIT #2
here below is my full code and i explain how my code works and for what.
my code is to create page and put something inside that page created
<form method="post">
<label>Page Name:</label><br>
<input type='text' name='filename' placeholder='page name'>
<label>Folders</label>
<select name="thisfolder">
<option value="">Default</option>
<option value="Folder1">Folder1</option>
<option value="Folder2">Folder2</option>
<option value="Folder3">Folder3</option>
</select><br><br>
<label>content</label><br>
<input type='text' name='strin' placeholder='content of created page'>
<input type='submit' value='Add Feed'>
</form>
<?php
if ($_SERVER["REQUEST_METHOD"] == "POST")
{
// the name of the file to create
$filename=$_POST['filename'];
// the name of the file to be in page created
$strin=$_POST['strin'];
// the name of the folder to put $filename in
$thisFolder = $_POST['thisfolder'];
// make sure #thisFolder of actually a folder
if (!is_dir(__DIR__.'/'.$thisFolder)) {
// if not, we need to make a new folder
mkdir(__DIR__.'/'.$thisFolder);
}
// . . . /[folder name]/page[file name].php
$myFile = __DIR__.'/'.$thisFolder. "/page" .$filename.".php";
$fh = fopen($myFile, 'w');
$stringData = "
<?php
$width = $_GET['width'];
$heigh = $_GET['height'];
echo '';
?>
";
fwrite($fh, $stringData);
fclose($fh);
}
?>
what i am trying to do is, passing that php code that is inside $stringData to that page that will be created

Answer 1

You'll want to escape the $'s in your text.
Set $stringData like this:
$stringData = "
// Start here
<?php
\$width = \$_GET['width'];
\$heigh = \$_GET['height'];
echo 'Hello';
?>
// End here
";

Answer 2

using highlight_string internal function
echo highlight_string($stringData);
or using htmlspecialchars
echo htmlspecialchars($stringData);
EDIT , as long as you don't want to print the php code literally to the output [as you've mentioned in your comment]
the problem here is that you are using (double quotes) to store values, which has special meaning in php
the solution is to store your text in single quotes ,
<?php
$stringData = '
// Start here
<?php
$width = $_GET["width"];
$heigh = $_GET["height"];
echo "Hello";
?>
// End here
';
?>

Answer 3

You're using double quotes (") which lets you use $variables inside the string where single quotes (') will not.
like so:
$color = 'red';
$string_one = "My car is $color."
echo $string_one; // My car is red.
$string_two = 'My car is $color.'
echo $string_two; // My car is $color.
So to fix your code you simply need to change the double quotes to single quotes (and escape [put a backslash before] the other single quotes).
Like so:
<?php
$stringData = '
// Start here
<?php
$width = \$_GET[\'width\'];
$heigh = \$_GET[\'height\'];
echo \'Hello\';
?>
// End here
';
?>

Answer 4

In your code I added:
<?php
$stringData = '
// Start here
<?php
$width = $_GET["width"];
$heigh = $_GET["height"];
echo "Hello";
?>
// End here
';
echo $stringData;
?>
When I opened this phap page, I had in browser:
// Start here // End here
In Page Source View I had:
// Start here
<?php
$width = $_GET["width"];
$heigh = $_GET["height"];
echo "Hello";
?>
// End here
There is no error! I see now what you wont.

Answer 5

This code with "(string) $price" working:
<?php
$price = 10;
$stringData = "start here (string) $price end here";
echo $stringData;
echo "(string) $price";
?>

Answer 6

Your code
?>
// End here must be in out put
";
?>
There is not start php delimiter <?php
Correct is:
?>
// End here must be in out put
<?php
";
?>
You missed one more php delimiter, total 2:
<?php
$stringData = "
**?>**
// Start here must be in out put
<?php
$width = $_GET['width'];
$heigh = $_GET['height'];
echo '';
?>
// End here must be in out put
**<?php**
";
?>