登錄功能報(bào)錯(cuò)
問(wèn)題描述
Fatal error: Call to undefined function mysql_num_row() in E:phpStudyWWW0330daimalogin_a.php on line 33
if(mysql_num_row($result)==0){
說(shuō)是這一句,下面是完整代碼
<?php
session_start();
$username=$_POST["username"];
$password=$_POST["password"];
include("config.php");
if(empty($username)){
echo ("<script type='text/javascript'> alert('用戶名不能是空的');history.go(-1);</script>");
}
if(empty($password)){
echo ("<script type='text/javascript'> alert('密碼不能是空的');history.go(-1);</script>");
}
//echo $username.$password;
$db=mysql_connect("127.0.0.1","root","root");
mysql_select_db("performance",$db);
mysql_query("SET NAMES 'GB2312'");
$_POST["username"];
$sql="select * from admin where admin_name='$username' and admin_pw='$password'";
$result=mysql_query($sql);
//$number = mysql_fetch_row($result);
//$result=mysql_fetch_array(mysql_query($sql));
if(mysql_num_row($result)==0){
echo ("<script type='text/javascript'> alert('用戶名或密碼不正確!');history.go(-1);</script>");
mysql_close();
exit;
}else{
$_SESSION["admin"]="lee";
echo "<script>location.href='Admin.html';</script>";
}
?>
問(wèn)題解答
回答1:print_r(get_extension_funcs('mysqli'));
是mysqli_num_rows(),函數(shù)名稱寫(xiě)錯(cuò)了.細(xì)心點(diǎn)哦~
相關(guān)文章:
1. mac OSX10.12.4 (16E195)下Mysql 5.7.18找不到配置文件my.cnf2. mysql - 怎么生成這個(gè)sql表?3. mysql儲(chǔ)存json錯(cuò)誤4. php - 公眾號(hào)文章底部的小程序二維碼如何統(tǒng)計(jì)?5. mysql - 表名稱前綴到底有啥用?6. mysql - 數(shù)據(jù)庫(kù)表中,兩個(gè)表互為外鍵參考如何解決7. Navicat for mysql 中以json格式儲(chǔ)存的數(shù)據(jù)存在大量反斜杠,如何去除?8. 在mybatis使用mysql的ON DUPLICATE KEY UPDATE語(yǔ)法實(shí)現(xiàn)存在即更新應(yīng)該使用哪個(gè)標(biāo)簽?9. mysql - 數(shù)據(jù)庫(kù)建字段,默認(rèn)值空和empty string有什么區(qū)別 11010. sql語(yǔ)句 - 如何在mysql中批量添加用戶?
