将数据插入 MySQL 数据库

可以通过 PHP 函数mysql_query执行 SQL INSERT 语句将数据输入到 MySQL 表中。下面是一个向员工表插入一条记录的简单示例。

例子

尝试以下示例将记录插入员工表中。

<?php
   $dbhost = 'localhost:3036';
   $dbuser = 'root';
   $dbpass = 'rootpassword';
   $conn = mysql_connect($dbhost, $dbuser, $dbpass);
   
   if(! $conn ) {
      die('Could not connect: ' . mysql_error());
   }
   
   $sql = 'INSERT INTO employee '.
      '(emp_name,emp_address, emp_salary, join_date) '.
      'VALUES ( "guest", "XYZ", 2000, NOW() )';
      
   mysql_select_db('test_db');
   $retval = mysql_query( $sql, $conn );
   
   if(! $retval ) {
      die('Could not enter data: ' . mysql_error());
   }
   
   echo "Entered data successfully\n";
   
   mysql_close($conn);
?>

在实际应用中，所有值都将使用 HTML 表单获取，然后使用 PHP 脚本捕获这些值，最后将它们插入到 MySQL 表中。

在进行数据插入时，最佳实践是使用函数get_magic_quotes_gpc()来检查魔术引用的当前配置是否已设置。如果此函数返回 false，则使用函数addslashes()在引号前添加斜杠。

例子

通过将此代码放入 add_employee.php 来尝试此示例，这将使用 HTML 表单获取输入，然后将在数据库中创建记录。

<html>
   
   <head>
      <title>Add New Record in MySQL Database</title>
   </head>
   
   <body>
      <?php
         if(isset($_POST['add'])) {
            $dbhost = 'localhost:3036';
            $dbuser = 'root';
            $dbpass = 'rootpassword';
            $conn = mysql_connect($dbhost, $dbuser, $dbpass);
            
            if(! $conn ) {
               die('Could not connect: ' . mysql_error());
            }
            
            if(! get_magic_quotes_gpc() ) {
               $emp_name = addslashes ($_POST['emp_name']);
               $emp_address = addslashes ($_POST['emp_address']);
            }else {
               $emp_name = $_POST['emp_name'];
               $emp_address = $_POST['emp_address'];
            }
            
            $emp_salary = $_POST['emp_salary'];
            
            $sql = "INSERT INTO employee ". "(emp_name,emp_address, emp_salary, 
               join_date) ". "VALUES('$emp_name','$emp_address',$emp_salary, NOW())";
               
            mysql_select_db('test_db');
            $retval = mysql_query( $sql, $conn );
            
            if(! $retval ) {
               die('Could not enter data: ' . mysql_error());
            }
            
            echo "Entered data successfully\n";
            
            mysql_close($conn);
         }else {
            ?>
            
               <form method = "post" action = "<?php $_PHP_SELF ?>">
                  <table width = "400" border = "0" cellspacing = "1" 
                     cellpadding = "2">
                  
                     <tr>
                        <td width = "100">Employee Name</td>
                        <td><input name = "emp_name" type = "text" 
                           id = "emp_name"></td>
                     </tr>
                  
                     <tr>
                        <td width = "100">Employee Address</td>
                        <td><input name = "emp_address" type = "text" 
                           id = "emp_address"></td>
                     </tr>
                  
                     <tr>
                        <td width = "100">Employee Salary</td>
                        <td><input name = "emp_salary" type = "text" 
                           id = "emp_salary"></td>
                     </tr>
                  
                     <tr>
                        <td width = "100"> </td>
                        <td> </td>
                     </tr>
                  
                     <tr>
                        <td width = "100"> </td>
                        <td>
                           <input name = "add" type = "submit" id = "add" 
                              value = "Add Employee">
                        </td>
                     </tr>
                  
                  </table>
               </form>
            
            <?php
         }
      ?>
   
   </body>
</html>

php_and_mysql.htm