Php Mysql 简明教程

PHP & MySQL - Drop Table Example

PHP 使用 mysqli query()mysql_query() 函数来删除 MySQL 表。这个函数接收两个参数,并在成功时返回 TRUE,并在失败时返回 FALSE。

PHP uses mysqli query() or mysql_query() function to drop a MySQL table. This function takes two parameters and returns TRUE on success or FALSE on failure.

Syntax

$mysqli->query($sql,$resultmode)

Sr.No.

Parameter & Description

1

$sql Required - SQL query to drop a table.

2

$resultmode Optional - Either the constant MYSQLI_USE_RESULT or MYSQLI_STORE_RESULT depending on the desired behavior. By default, MYSQLI_STORE_RESULT is used.

Example

尝试以下示例来删除一个表格 −

Try the following example to drop a table −

将以下示例复制粘贴为 mysql_example.php:

Copy and paste the following example as mysql_example.php −

<html>
   <head><title>Dropping MySQL Table</title></head>
   <body>
      <?php
         $dbhost = 'localhost';
         $dbuser = 'root';
         $dbpass = 'root@123';
         $dbname = 'TUTORIALS';
         $mysqli = new mysqli($dbhost, $dbuser, $dbpass, $dbname);

         if($mysqli->connect_errno ) {
            printf("Connect failed: %s<br />", $mysqli->connect_error);
            exit();
         }
         printf('Connected successfully.<br />');

         if ($mysqli->query("Drop Table tutorials_tbl")) {
            printf("Table tutorials_tbl dropped successfully.<br />");
         }
         if ($mysqli->errno) {
            printf("Could not drop table: %s<br />", $mysqli->error);
         }
         $mysqli->close();
      ?>
   </body>
</html>

Output

访问部署在 Apache Web 服务器上的 mysql_example.php, 并验证输出。

Access the mysql_example.php deployed on apache web server and verify the output.

Connected successfully.
Table tutorials_tbl dropped successfully.