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![ThinkPHP5实战之[教学管理系统]](https://img.php.cn/upload/course/000/000/068/6253d87459486427.png)
<?php
var_dump($_POST);
$sex = $_POST['sex'];
$link = mysqli_connect('localhost','root','123456');
if (mysqli_connect_errno($link)>0) {
echo mysqli_connect_error($link);exit;
}
mysqli_select_db($link,'day2');
mysqli_set_charset($link,'utf8');
$sql="INSERT INTO info(id,name,sex,age,city) VALUES(null,'{$_POST['name']}','{$sex}','{$_POST['age']}','{$_POST['city']}')";
//echo $sql;exit;
$result = mysqli_query($link,$sql);
if($result && mysqli_affected_rows($link)>0){
//返回上一次插入id
echo mysqli_insert_id($link);
echo '插入成功';
}else{
echo '插入失败';
}
mysqli_close($link);
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
</head>
<body>
<form action="demo.php" method="post">
姓名: <input type="text" name="name"><br>
年龄: <input type="text" name="age"><br>
性别: <input type="text" name="sex"><br>
城市: <input type="text" name="city"><br>
<input type="submit" value="提交"><br>
</form>
</body>
</html>点击 "运行实例" 按钮查看在线实例
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