How to check url exist or not on server

how to check url exist or not server

I try with following code but this is not properly working

<?php
 
$url = "http://www.exampless.com";
$headers = @get_headers($url);
if(strpos($headers[0],'404') === false)
{
  echo "URL Exists";
}
else
{
  echo "URL Not Exists";
}
?>

PHP:

so plz give the script for checking url exist or not.............

 

What do you mean by 'properly not working'?
I just tried , it worked wonder!

 

The problem is some sites don't send the code 404, they send the code 200 and show you a dynamic 404 page.

Try this:

<?php
#$url = 'http://www.amazon.com/amazon.asdasd'; # Not Exists
$url = 'http://www.amazon.com/books-used-books-textbooks/b/ref=sa_menu_bo8?ie=UTF8&node=283155'; // Exists

# This strings depends of the language and depends of the site, but the common are:
$strings = array('404 Not found', '404 - Document Not Found');

$info = @file_get_contents($url);

if(!$info)
	print 'URL Not Exists';
else 
{
	$exists = true;
	foreach( $strings as $string  )
	{
		if( eregi($string, $info)  )
			$exists = false;
	}
	
	if( !$exists )
		print 'URL Not Exists';
	else print 'URL Exists';
}
?>

PHP:

 

I mean if any site or domain are available for example :http://youngangels.in and one incorrect domain for example : http://youngang_els.in which are not correct then his script show the both url valid whenever http://youngang_els.in are not correct but script show this is valid.....

how can solve this problem ??????????

 

using fsockopen to get the page info and then check the first line
such as HTTP/1.1 302 Found