note 40038 modified in function.file-exists by nlopess

A usefull code to check file existance on a remote web server. function remote_file_exists ($url) { $head = ""; $url_p = parse_url ($url); if (isset ($url_p["host"])) { $host = $url_p["host"]; } else { return false; } if (isset ($url_p["path"])) { $path = $url_p["path"]; } else { $path = ""; } $fp = fsockopen ($host, 80, $errno, $errstr, 20); if (!$fp) { return false; } else { $parse = parse_url($url); $host = $parse['host']; fputs($fp, "HEAD ".$url." HTTP/1.1\r\n"); fputs($fp, "HOST: ".$host."\r\n"); fputs($fp, "Connection: close\r\n\r\n"); $headers = ""; while (!feof ($fp)) { $headers .= fgets ($fp, 128); } } fclose ($fp); $arr_headers = explode("\n", $headers); $return = false; if (isset ($arr_headers[0])) { $return = strpos($arr_headers[0], "404") !== false; } return $return; } // sample code $url = "http://www.google.it/intl/it_it/images/logo.gif"; if (remote_file_exists ($url)) { print ($url . " file exists!"); } else { print ($url . " file doesn't exist!"); } --was-- A usefull code to check file existance on a remote web server. function remote_file_exists ($url) { $head = ""; $url_p = parse_url ($url); if (isset ($url_p["host"])) { $host = $url_p["host"]; } else { return false; } if (isset ($url_p["path"])) { $path = $url_p["path"]; } else { $path = ""; } $fp = fsockopen ($host, 80, $errno, $errstr, 20); if (!$fp) { return false; } else { fputs($fp, "HEAD ".$url." HTTP/1.1\r\n"); fputs($fp, "HOST: dummy\r\n"); fputs($fp, "Connection: close\r\n\r\n"); $headers = ""; while (!feof ($fp)) { $headers .= fgets ($fp, 128); } } fclose ($fp); $arr_headers = explode("\n", $headers); $return = false; if (isset ($arr_headers[0])) { $return = strpos($arr_headers[0], "404") !== false; } return $return; } // sample code $url = "http://www.google.it/intl/it_it/images/logo.gif"; if (remote_file_exists ($url)) { print ($url . " file doesn't exists!"); } else { print ($url . " file exists!"); } http://www.php.net/manual/en/function.file-exists.php