下面的腳本為所有機(jī)器人訪(fǎng)問(wèn)創(chuàng)建一個(gè)日志文件，向我發(fā)送電子郵件，并在 ip2location 驗(yàn)證 IP。它與帶有eri函數(shù)的PHP5.2一起工作得很好，所以我修改了ergi行preg_match，并在向每個(gè)機(jī)器人變量添加正斜杠后在我的wamp測(cè)試服務(wù)器上工作了幾分鐘，因?yàn)槲业玫揭粋€(gè)“reg_match（）：分隔符不能是字母數(shù)字或反斜杠”警告，但現(xiàn)在它不起作用，也不會(huì)在訪(fǎng)問(wèn).log文件中記錄任何機(jī)器人。腳本仍然在下面給了我這三個(gè)警告，但是由于它們是警告并且已經(jīng)開(kāi)始工作，所以我沒(méi)有太多關(guān)注它們：注意：未定義的偏移量：C：\wamp\www\visits 中的 5 .php在第 28 行警告：preg_match（）：在第 28 行的 C：\wamp\www\visits.php中為空正則表達(dá)式注意：未定義的索引：c：\wamp\www\visits中的js.php第62行<?phperror_reporting(E_ALL);ini_set('display_errors', 1);  $to = "email@here.com";  $log = "./visits.log";  $dateTime = date("r");  $agents[] = "/googlebot/";  $spiders[] = "/Google/";  $spiders[] = "/Googlebot/";  $agents[] = "/slurp/";  $spiders[] = "/Slurp (Inktomi's robot, HotBot)/";  $agents[] = "/msnbot/";  $spiders[] = "/MSN Robot (MSN Search, search\.msn\.com)/";  $agents[] = "/yahoo\! slurp/";  $spiders[] = "/Yahoo! Slurp/";  $agents[] = "/bingbot/";  $spiders[] = "/Bing\.com/";  $ip= $_SERVER['REMOTE_ADDR'];  $found = false;  for ($spi = 0; $spi < count($spiders); $spi++)    if ($found = preg_match($agents[$spi], $_SERVER['HTTP_USER_AGENT']))      break;  if ($found) {    $url = "http://" . $_SERVER['SERVER_NAME']. $_SERVER['PHP_SELF'];    if ($_SERVER['QUERY_STRING'] != "") {      $url .= '?' . $_SERVER['QUERY_STRING'];    }    $line = $dateTime . " " . $spiders[$spi] . " " . $ip." @ " . $url;    $ip2location = "https://www.ip2location.com/".$_SERVER['REMOTE_ADDR'];    if ($log != "") {      if (@file_exists($log)) {        $mode = "a";      } else {        $mode = "w";      }      if ($f = @fopen($log, $mode)) {        @fwrite($f, $line . "\n");        @fclose($f);      }    }   if ($to != "") {$to = "email@here.com";$subject = $spiders[$spi]. " crawled your site";$body = "$line". "\xA\xA" ."Whois verification available at: $ip2location";mail($to, $subject, $body);    }  }  if ($_REQUEST["js"]) {     header("Content-Type: image/gif\r\n");     header("Cache-Control: no-cache, must-revalidate\r\n");     header("Pragma: no-cache\r\n");     @readfile("visits.gif");  }?>