html+PHP提交表单并保存到MySQL中

Love The Way You Lie 2022-05-27 05:46 236阅读 0赞

写了一个简单的收集信息的页面，页面上只有一个表单，用户将数据写入表单并提交之后，转到另一个页面并且将数据保存的MySQL中。

信息统计页面

![SouthEast][]

<html>
    <head>
    <meta charset="utf-8">
    <meta content="width=device-width,user-scalable=no" name="viewport">
    <title>form</title>
    <style type="text/css">
    	.p1{
    		color: black;
    		font-size: 30px;
    	}
    	#box1{
    		background-color: #f1861e;
    		width: 75%;
    		height: 60%;
    		float: 0 auto;
    		text-align: center;
    	}
    	#input1{
    		width: 100px;
    		height: 50px;
    		margin: 20px;
    	}
    	#input0{
    		width: 200px;
    		height: 30px;
    	}
    </style>
    </head>
    <body>
    <div style="text-align: center;">
     	<div id="box1">
    		<form action="welcome.php" method="post">
    			<b class="p1">姓名: </b><input type="text" name="name" id="input0"><br>
    			<b class="p1">学号: </b><input type="text" name="num" id="input0"><br>
    			<b class="p1">班级：</b><input type="text" name="classl" id="input0"><br>
    			<input type="submit" value="提交" id="input1">
    		</form>
    	</div>
    </div>
    
     
    </body>
    </html>

提交后跳转页面

![SouthEast 1][]

phpmyadmin页面

![SouthEast 2][]

<!DOCTYPE html>
    <html>
    <head>
    <meta charset="utf-8">
    	<title></title>
    </head>
    <body>
    	<?php echo $_POST["num"]; ?><br>
    	欢迎<?php echo $_POST["classl"]; ?> 
    	<?php echo $_POST["name"]; ?>！
    	<?php
    		$file_path = "info.txt";
    		if(file_exists($file_path)){
    			$fp = fopen($file_path, "w");
    			$str = $_POST["num"] . PHP_EOL . $_POST["classl"] .PHP_EOL . $_POST["name"];
    			fwrite($fp, $str);
    			
    		}
    		fclose($fp);
    	?>
    	<?php
    			$mydbhost = "localhost";
    			$mydbuser = "root";
    			$mydbpass = 'helloworld';
    			$conn = mysqli_connect($mydbhost, $mydbuser, $mydbpass);
    			if(! $conn){
    				die("connect error: " . mysqli_error($conn));
    			}
    			mysqli_select_db( $conn, 'person');
    			$sql="INSERT INTO student (name, Sno, class)
    			VALUES
    			('$_POST[name]','$_POST[num]','$_POST[classl]')";
    			$retval = mysqli_query($conn, $sql);
    			if(! $retval){
    				die("create error" . mysqli_error($conn));
    
    			}
    			mysqli_close($conn);
    		?>
    </body>
    </html>

[SouthEast]: /images/20220527/10bcfd00070e480fa280a051c97a258a.png
[SouthEast 1]: /images/20220527/b6fde70ee99741fa91611b5a23937733.png
[SouthEast 2]: /images/20220527/c1b4424d7fe8405eb1ae02c2c6cf5a56.png