我遇到第10行的问题（ $ f = fsockopen（$ server，43，$ ae_whois_errno，$ ae_whois_errstr，AE_WHOIS_TIMEOUT）; ）。当我在输入字段中写入URL时会出现警告：“警告：fsockopen（）要求参数1为字符串，资源在第10行的C：\ xampp \ htdocs \ Client-Server \ whoisclient.php中给出< /强>”。这是代码。
<?php
include("preliminari.php");
function ae_whois($query, $server)
{
define('AE_WHOIS_TIMEOUT', 15); // connection timeout
global $ae_whois_errno, $ae_whois_errstr;
// connecting
$f = fsockopen($server, 43, $ae_whois_errno, $ae_whois_errstr, AE_WHOIS_TIMEOUT);
if (!$f)
return false; // connection failed
// sending query
fwrite($f, $query."\r\n");
// receving response
$response = '';
while (!feof($f))
$response .= fgets($f, 1024);
// closing connection
fclose($f);
return $response;
}
?>
<html>
<head>
<title>Whois client con i socket del PHP</title>
<style type="text/css">
.body {
font-family: Verdana, Geneva, sans-serif;
}
.titolo {
font-family: Verdana, Geneva, sans-serif;
font-weight: bold;
text-decoration: underline;
}
</style>
</head>
<body>
<?php
$indirizzo = $_GET['dominio'];
$dom = explode(".",$indirizzo);
$campi = count($dom)-1;
$query = "select servername from whois where dominio = '".$dom[$campi]."'";
$server = mysql_query($query);
if (isset ($indirizzo)) {
$reply = ae_whois ($indirizzo, $server);
$reply = nl2br ($reply);
echo "<p>$reply</p>";
}
?>
<h2 align="center" class="titolo">Whois di un dominio</h2>
<form name="ricerca" method="get" action="whoisclient.php">
<p align="center" class="body">Nome del dominio</p>
<p align="center" class="body">
<input name="dominio" type="text">
</p>
<p align="center" class="body"><input name="go" type="submit" value="WHOIS"></p>
</form>
</body>
</html>
答案 0 :(得分：0)
您有服务器作为查询，但您尚未指定结果。
然后你需要mysql_fetch_assoc来获取一个值。
$s =mysql_query($query);
while ($row = mysql_fetch_assoc($s)) {
$server = $row['servername'];
}
您还应该认真考虑使用mysqli或pdo。 php mysql query documentation