mysql - 为什么我在 $result 中得到结果

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Possible Duplicate:
Why do I get “Resource id #4” when I apply print_r() to an array in PHP?
How do i “echo” a “Resource id #6” from a MySql response in PHP?

为什么我在 $result 中得到“Resource id #6”？想要 1 或 0 :P

$sql = "SELECT * FROM members WHERE rchat=1 LIMIT 1";
$result = mysql_query($sql);

if (!$result) {
unlink($fn);
//$fn = $_SESSION['sess_user'].'.txt';
$fn = 'hittaingen.txt';
mysql_query("UPDATE members SET rchat=1 room='" . $_SESSION['sess_user'] . "' WHERE     user='" . $_SESSION['sess_user'] . "'");
}

else {
  //$fn = $result['room'].'.txt';
  $fn = 'hitta.txt';
  mysql_query("UPDATE members SET rchat=2 room='" . $result['room'] . "' WHERE user='" . $_SESSION['sess_user'] . "'");
  }

最佳答案

mysql_query() 仅返回结果对象的引用，而不返回结果本身。所以为了让你得到 0 或 1，你必须首先使用例如 mysql_fetch_array() 来解析结果。