Check URL Exists in PHP

http://blog.insicdesigns.com/2008/02/check-url-exists-php/

1. function url_exists($url) {
2. $handle = curl_init($url);
3. if (false === $handle)
4. {
5. return false;
6. }
7. curl_setopt($handle, CURLOPT_HEADER, false);
8. curl_setopt($handle, CURLOPT_FAILONERROR, true);
9. curl_setopt($handle, CURLOPT_NOBODY, true);
10. curl_setopt($handle, CURLOPT_RETURNTRANSFER, false);
11. $connectable = curl_exec($handle);
12. curl_close($handle);
13. return $connectable;
14. }
15. 
    
16. $url = 'http://insicdesigns.com/';
17. 
    
18. if(url_exists($url)){
19. echo 'true';
20. }else{
21. echo 'false';
22. }