zoukankan      html  css  js  c++  java
  • php操作数据库

    <html>
    <head>
       <title>Finding User</title>
    </head>
    <body>
      <h2>Finding users from mysql database.</h2>
      <form action="formhandler.php" method="post">
         Fill user name:
         <input name="username" type="text" size="20"/> <br />
    	 <input name="submit" type="submit" value="Find"/>
      </form>
    </body>
    </html>
    

    具体操作步骤如下:

    <html>
    <head>
       <title>User found</title>
    </head>
    <body>
       <h2>User found from mysql database.</h2>
    <?php
        $username = $_POST['username'];
    	if(!$username){
    	    echo "Error: There is no data passed.";
    		exit;
    	}
    	
    	if(!get_magic_quotes_gpc()){
    		$username = addslashes($username);
    	}
    		@ $db = mysqli_connect('localhost','root','12345678','testphp');
    	
    		if(mysqli_connect_errno()){
    	 	 echo "Error: Could not connect to mysql database.";
    	 	 exit;
    		}
    		
    		$q = "SELECT * FROM user WHERE name = '".$username."'";
    
    		$result = mysqli_query($db,$q);
    		$rownum = mysqli_num_rows($result);
    		
    		for($i=0; $i<$rownum; $i++){
    		   $row = mysqli_fetch_assoc($result);
    		   echo "Id:".$row['id']."<br />";
    		   echo "Name:".$row['name']."<br />";
    		   echo "Age:".$row['age']."<br />";
    		   echo "Gender:".$row['gender']."<br />";
    		   echo "Info:".$row['info']."<br />";
    		}
    		mysqli_free_result($result);
    
    		mysqli_close($db);
    	
    ?>
    </body>
    </html>
    

      

  • 相关阅读:
    [国家集训队] Crash 的文明世界
    [国家集训队] middle
    [正睿集训2021] 构造专练
    [正睿集训2021] LIS
    CF482E ELCA
    UVA
    UVA
    UVA
    UVA
    UVA
  • 原文地址:https://www.cnblogs.com/DamonBlog/p/10121063.html
Copyright © 2011-2022 走看看