php - file_exists, @get_headers, cURL and detecting a favicon -

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after reading in various places, including http://php.net/manual/en/function.file-exists.php, have following working code detects whether given host eg. http://example.com has favicon located @ /favicon.ico

$file = 'http://www.easyjet.com/favicon.ico'; $file_headers = @get_headers($file);  if($file_headers[0] == 'http/1.0 200 ok') {      //place favicon image on page     echo "<img src ='" . $file . "'>";     } else {     //place default image     echo  "<img src ='" . "globe.jpg" . "'>";  }

while know there better, more thorough ways seek favicon file on stackoverflow, more concerned use of @get_headers. of have read suggests curl useful, or should set user agent.

am going run difficulty code in cases have not foreseen?

personaly think get_headers best way in case. first of all, performs head request, less load both , remote host(as remote host gives headers , server doesn't need fetch image itself).

i don't think cause trouble , haven't seen issues caused usage of function.


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