Get current page title without loop - php

Question

I have a small script which should get the meta title of the current page the script is added into. The problem is, that its working fine on several test pages, but not into my CMS. It loops until death there and I cant reach any page on my server until I restart apache completely and by taking the script off.
May someone take a look at it? This would be really awesome since I used google for hours and sure, I found X threads and pages, but never a solution for this special loop-effect.
<?php
function curPageURL() {
$pageURL = 'http';
$pageURL .= "://";
if ($_SERVER["SERVER_PORT"] != "80") {
$pageURL .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
} else {
$pageURL .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
}
return $pageURL;
}
?>
<?php
if (!isset($_GET['ignore']))
{
$url = curPageURL();
$data = implode("", file("$url?ignore=this"));
preg_match ("/<title>([^`]*?)<\/title>/", $data, $match);
$urltitle = $match[1];
}
?>
<?echo $urltitle;?>

Answer 1

The $_SERVER["REQUEST_URI"] can also include GET params like this:
mysite.com?param1=1&param2=2
Then you try to append a string ?ignore=this so you get
mysite.com?param1=1&param2=2?ignore=this
which is translated by PHP into variables like
param1 = '1'
param2 = '2?ignore=this'
You must check for ? symbol in the $url variable

Answer 2

I'm using this function to get the current page url :
function currentURL() {
$protocol = stripos($_SERVER['SERVER_PROTOCOL'], 'https') === FALSE ? 'http' : 'https';
$host = $_SERVER['SERVER_NAME'];
$port = $_SERVER["SERVER_PORT"];
$query = $_SERVER['REQUEST_URI'];
return $protocol.'://'.$host.($port != 80 ? ':'.$port : '').$query;
}
But your problem comes from here :
if (!isset($_GET['ignore']))
{
$url = curPageURL();
$data = implode("", file("$url?ignore=this"));
/* ... */
}
This will work with "test pages", but you CMS propably use url-rewriting, which can cause the lost of your $_GET['ignore'] variable : if you've already other GET variable for example.
You should have a look into your .htaccess files, or read your CMS documentation to know what can change you url.
Anyway, it seems you're building some unstable code, and this only to get the page title. I'm pretty sure you've got another way to get it easily with your CMS.