学习:PHP MYSQL 写入数据库

新建test.php

<?php
 $mysqli = new mysqli("localhost","root","","user");
 
 if ($mysqli->connect_error) {
	 die($mysqli->connect_error);
 }
 
 
 $mysqli->query("set names utf8");
 
 $username=$_POST['username'];
 $wechat=$_POST['wechat'];
 $tel=$_POST['tel'];
 
 $result = $mysqli->query("INSERT INTO test (username,wechat,tel) 
 VALUES ('$username','$wechat','$tel')");
	 
  if ($result){
	  echo "添加成功";
  }else {
	  echo "添加失败";
  }
  $mysqli->close();
?>

<form action="test.php" method="POST">
		username: <input type="text" name="username">
		wechat: <input type="text" name="wechat">
		tel: <input type="text" name="tel">
		<input type="submit" value="提交">
</form>