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警告:mysql_num_rows()期望參數1是資源,布爾在第16行給出 您的登錄會話數據未記錄在數據庫中。mysql_num_rows()期望參數1是資源,PHP中的布爾錯誤消息
當我想登錄到我的網站的管理區域時出現此錯誤。我不知道爲什麼會發生,因爲一切看起來都很棒!
<?php
session_start();
if (!isset($_SESSION["manager"])) {
header("location: index.php");
exit();
}
// Be sure to check that this manager SESSION value is in fact in the database
$managerID = preg_replace('#[^0-9]#i', '', $_SESSION["id"]); // filter everything but numbers and letters
$manager = preg_replace('#[^A-Za-z0-9]#i', '', $_SESSION["manager"]); // filter everything but numbers and letters
$password = preg_replace('#[^A-Za-z0-9]#i', '', $_SESSION["password"]); // filter everything but numbers and letters
// Run mySQL query to be sure that this person is an admin and that their password session var equals the database information
// Connect to the MySQL database
include "inc/connect.php";
$sql = mysql_query("SELECT * FROM admin WHERE id='$managerID' AND username='$manager' AND password='$password' LIMIT 1"); // query the person
// ------- MAKE SURE PERSON EXISTS IN DATABASE ---------
$existCount = mysql_num_rows($sql); // count the row nums
if ($existCount == 0) { // evaluate the count
echo "Your login session data is not on record in the database.";
exit();
}
?>
這是第16行:
$existCount = mysql_num_rows($sql); // count the row nums
正如你可以看到,我把這個$ existCount,看看是否有對數據庫沒有記錄,但 居然有上分貝所以這一塊的一些記錄不應該彈出...
如果您對這個問題有任何想法,請讓我知道!
'mysql_ *'已棄用,請使用'mysqli_ *'或'PDO'。 –
明文密碼?!?僅限於字母數字字符?!? –
這裏有什麼>>> connect.php –