Question

注册表单值未在php中插入数据库。使用mysql_connect时显示错误，当我使用mysqli_connect时，值不会插入到数据库中。

Form.html

<html>
<body>
<form action="signup.php" method="post">
username <input type="text" name="username">
password <input type="password" name="password">
<input type="submit" value="ok" name="submit">
</body>
</html>

signup.php

<?php
$connection=mysqli_connect("localhost","root","","form") or die("not connected");

if(ISSET($_POST['SUBMIT'])){

$username=mysql_real_escape_string($_POST['username']);
$password=mysql_real_escape_string($_POST['password']);

mysql_query("insert into formval('username','password') values('$username','$password')");

}
?>

Answer 1

这应该有效

<?php
$connection=mysqli_connect("localhost","root","","form") or die("not connected");

 if($_POST['username']!="" && $_POST['password']!=""){

  $username=mysqli_real_escape_string($connection,$_POST['username']);
  $password=mysqli_real_escape_string($connection,$_POST['password']);

   mysqli_query($connection,"insert into formval(username,password)  values('$username','$password')");

 }
?>

Answer 2

它无效，因为你正在混合mysql＆amp; mysqli。mysql_已弃用。您应该使用mysqli_或PDO来代替。

<?php
$connection=new mysqli("localhost","root","","form") or die("not connected");

if(isset($_POST['SUBMIT'])){

   $username=mysqli_real_escape_string($connection, $_POST['username']);
   $password=mysqli_real_escape_string($connection, $_POST['password']);

   mysqli_query($connection, "insert into formval(username,password) values('$username','$password')");

}
?>

注册表单值没有插入到php中的数据库中

2 个答案: