Mysqli_num_rows（）期望参数1为mysqli_result boolean [英] Mysqli_num_rows() expects parameter 1 to be mysqli_result boolean given in

问题描述

include（'dbcon.php'）;





if（isset（$ _ POST ['login']））< br $>
{

$ username = $ _POST ['uname'];

$ password = $ _POST ['pass'];

$ qry =SELECT * FROM'admin'WHER''username'='$ username'和'password'='$ password';

$ run = mysqli_query（$ con， $ qry）;

$ row = mysqli_num_rows（$ run）;

if（$ row< 1）

{

？>



alert（'用户名或密码不匹配!!'）;

window.open（'登录。 php'，'_ self'）;



<？php

}

else

{

$ data = mysqli_fetch_assoc（$ run）;

$ id = $ data ['id'];

echo id =。$ id;



我尝试过：



include（'dbcon.php'）;





if（isset（$ _ POST ['login']））

{

$ username = $ _POST ['uname '];

$ password = $ _POST ['pass'];

$ qry =SELECT * FROM'admin'WHER''username'='$ username'AND 'password'='$ password';

$ run = mysqli_query（$ con，$ qry）;

$ row = mysqli_num_rows（$ run）;

if（$ row< 1）

{

？>



alert（ '用户名或密码不匹配！'）;

window.open（'login.php'，'_ self'）;



<？php

}

else

{

$ data = mysqli_fetch_assoc（$ run）;

$ id = $ data ['id'];

echoid =。$ id;

include('dbcon.php');


if(isset($_POST['login']))
{
$username = $_POST['uname'];
$password = $_POST['pass'];
$qry="SELECT * FROM 'admin' WHERE 'username'='$username' AND 'password'='$password'";
$run=mysqli_query($con,$qry);
$row=mysqli_num_rows($run);
if($row<1)
{
?>

alert('username or password not match!!');
window.open('login.php','_self');

<?php
}
else
{
$data=mysqli_fetch_assoc($run);
$id=$data['id'];
echo "id = ".$id;

What I have tried:

include('dbcon.php');


if(isset($_POST['login']))
{
$username = $_POST['uname'];
$password = $_POST['pass'];
$qry="SELECT * FROM 'admin' WHERE 'username'='$username' AND 'password'='$password'";
$run=mysqli_query($con,$qry);
$row=mysqli_num_rows($run);
if($row<1)
{
?>

alert('username or password not match!!');
window.open('login.php','_self');

<?php
}
else
{
$data=mysqli_fetch_assoc($run);
$id=$data['id'];
echo "id = ".$id;

推荐答案

_POST ['login']））

{

_POST['login']))
{

username =

username =

_POST ['uname '];

_POST['uname'];

这篇关于Mysqli_num_rows（）期望参数1为mysqli_result boolean的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！