Php Mysql 简明教程

PHP & MySQL - Insert Records Example

PHP 使用 mysqli_query 函数在表中插入记录。此函数采用三个参数，成功时返回 TRUE，失败时返回 FALSE。

PHP uses mysqli_query function to insert records in table. This function takes three parameters and returns TRUE on success or FALSE on failure.

Syntax

mysqli_query ( mysqli $link, string $query, int $resultmode = MYSQLI_STORE_RESULT ) : mixed

Sr.No.

Parameter & Description

1

$link Required - A link identifier returned by mysqli_connect() or mysqli_init().

2

$query 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

此示例会从用户那里获取三个参数，并将它们插入 MySQL 表格 -

This example will take three parameters from the user and will insert them into the MySQL 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>Add New Record in MySQL Database</title>
   </head>
   <body>
      <?php
         if(isset($_POST['add'])) {
            $dbhost = 'localhost';
            $dbuser = 'root';
            $dbpass = 'root@123';
            $conn = mysqli_connect($dbhost, $dbuser, $dbpass);

            if(! $conn ) {
               die('Could not connect: ' . mysqli_error($conn));
            }
            if(! get_magic_quotes_gpc() ) {
               $tutorial_title = addslashes ($_POST['tutorial_title']);
               $tutorial_author = addslashes ($_POST['tutorial_author']);
            } else {
               $tutorial_title = $_POST['tutorial_title'];
               $tutorial_author = $_POST['tutorial_author'];
            }
            $submission_date = $_POST['submission_date'];
            $sql = "INSERT INTO tutorials_tbl ".
               "(tutorial_title,tutorial_author, submission_date) "."VALUES ".
               "('$tutorial_title','$tutorial_author','$submission_date')";
            mysqli_select_db( $conn, 'TUTORIALS' );
            $retval = mysqli_query( $conn, $sql );

            if(! $retval ) {
               die('Could not enter data: ' . mysqli_error($conn));
            }
            echo "Entered data successfully\n";
            mysqli_close($conn);
         } else {
      ?>
      <form method = "post" action = "<?php $_PHP_SELF ?>">
         <table width = "600" border = "0" cellspacing = "1" cellpadding = "2">
            <tr>
               <td width = "250">Tutorial Title</td>
               <td><input name = "tutorial_title" type = "text" id = "tutorial_title"></td>
            </tr>
            <tr>
               <td width = "250">Tutorial Author</td>
               <td><input name = "tutorial_author" type = "text" id = "tutorial_author"></td>
            </tr>
            <tr>
               <td width = "250">Submission Date [   yyyy-mm-dd ]</td>
               <td><input name = "submission_date" type = "text" id = "submission_date"></td>
            </tr>
            <tr>
               <td width = "250"> </td>
               <td></td>
            </tr>
            <tr>
               <td width = "250"> </td>
               <td><input name = "add" type = "submit" id = "add"  value = "Add Tutorial"></td>
            </tr>
         </table>
      </form>
   <?php
      }
   ?>
   </body>
</html>

Output

访问部署在 apache Web 服务器上的 mysql_example.php，输入详细信息，并在提交表单时验证输出。

Access the mysql_example.php deployed on apache web server, enter details and verify the output on submitting the form.

Entered data successfully

在执行数据插入时，最好使用函数 get_magic_quotes_gpc() 来检查当前 magic quote 配置是否已设置。如果此函数返回 false，则使用函数 addslashes() 在引号前添加反斜杠。

While doing a data insert, it is best to use the function get_magic_quotes_gpc() to check if the current configuration for magic quote is set or not. If this function returns false, then use the function addslashes() to add slashes before the quotes.

您可以进行许多验证，以检查输入的数据是否正确，并可以采取适当的操作。

You can put many validations around to check if the entered data is correct or not and can take the appropriate action.