我是PHP的初学者,我试图创建一个注册表,登录表单。有一个问题,我一直试图解决几天,我不知道我错了什么地方,我希望我能找到解决方案,并了解我做错了什么。接收mysqli参数警告?
我的错误:
Warning: mysqli_query() expects at least 2 parameters, 1 given in /registration.php on line 64
Warning: mysql_num_rows() expects parameter 1 to be resource, null given in /registration.php on line 66
Warning: mysqli_query() expects at least 2 parameters, 1 given in /registration.php on line 73
PHP:
<?php
$connection = mysqli_connect("mysql.hostname.com","user998988","9858588");
mysqli_select_db($connection,"user9898989");
if(isset($_POST['signup'])) {
$user_name = $_POST['name'];
$user_pass = $_POST['pass'];
$user_email = $_POST['email'];
if($user_name==''){
echo "<script>alert('Please enter your name!')</script>";
exit();
}
if($user_pass==''){
echo "<script>alert('Please enter your password!')</script>";
exit();
}
if($user_email==''){
echo "<script>alert('Please enter your email!')</script>";
exit();
}
$check_email = "select * from users where user_email='$user_email'";
$run = mysqli_query($check_email);
if(mysql_num_rows($run)>0) {
echo "<script>alert('Email $user_email already exists')</script>";
exit();
}
$querying = "insert into users (user_name,user_pass,user_email) values ('$user_name','$user_pass','$user_email')";
if(mysqli_query($querying)) {
echo "<script>alert('Registration successful!')</script>";
}
}
?>
错误信息很清楚我会说什么错... – PeeHaa 2014-09-27 10:07:46
你正在混合使用'mysql _ *()'和'mysqli _ *()'。他们不同,你不能混合他们。不要使用'mysql _ *()' - 它已被弃用。除此之外,这个消息告诉你你需要知道的一切。 – 2014-09-27 10:09:08
我想为我的白痴问题表示歉意,并感谢大家指出我的缺陷。 – user3649195 2014-09-27 10:38:42