PHP : insert executable php code in HTML

Question

I got simple caching script which is saving php code into HTML. Everything works fine, but I need to add dynamic tracking code into every saved HTML by including a script from another file with include() statement

....

$s_getdata = http_build_query( array(
                   'cat' => 'CAT1',
                   'buffit'=>'TRUE',
                 )
             );
$s_page = file_get_contents('http://example.com/buffer.php?'.$s_getdata);
ob_start();
echo $s_page;
file_put_contents('./index.html', ob_get_contents());
ob_end_clean();

I tried to add this code before ob_start, but it just add code as simple text in string (not working) :

$s_page .= '<?php include("./tr/in.php"); ?>';

Any idea how to do it ? Thanks!

Answer 1

You can do this by 2 ways,

Option 1: return value as a function from the in.php file,

your in.php file code,

function dynatrack() {
   // your dynamic tracking code generation here
   return $code; // where $code is your dynamic tracking code
}

Your original file,

$s_page = file_get_contents('http://example.com/buffer.php?'.$s_getdata);
include("./tr/in.php");
$s_page .= dynatrack();

Option 2: Get the contents of the in.php file by using file_get_contents again,

$s_page = file_get_contents('http://example.com/buffer.php?'.$s_getdata);
$s_page .= file_get_contents('./tr/in.php');

I hope this helps!