Ajax no-refresh form submission

Ajax No Refresh Submit notes

The database builds a self-simulation to execute the Add function

The PHP section uses the PDO method:

<?php$db = ' MySQL '; $host = ' localhost '; $port = ' 3306 '; $dbname = ' ajax '; $user = ' root '; $pwd = '; $dsn = "$db: host= $host;p o   rt= $port;d bname= $dbname "; Sets the character Set $options = Array (pdo::mysql_attr_init_command=> ' Set NAMES \ ' utf8\ '); $pdo = new PDO ($DSN, $user, $pwd, $options); $name = $_post[' name '];//print_r ($name); exit; $pwd = $_post[' pwd ']; $code = $_po st[' code '; $sql = "INSERT into user (Name,pwd,code) VALUES ('". $name. "', '". $pwd. "', '". $code. "')";  $res = $pdo->exec ($sql);   if ($res) {echo 1; Exit;}   else{Echo 2; Exit;}

Ajax Frontend Part

<script type= "Text/javascript"  src= "Jquery-1.8.3.min.js" ></script>         <script type= "Text/javascript" >         $ (function () {            $ (". User_main _r button "). Click (function () {                                     $.post ('./login.php ',  $ (' form '). Serialize (),  function (data)  {                                  if (data == 1) {                     alert  (' Add success ');                      $ ("#admin_user"). Val (');                      $ ("#admin_psd"). Val (');                      $ ("#captcha"). Val (');                 }else{                     alert  (' Add failed ');                 }                               });                          });                 });                                            </script>        <title> No Refresh User Login </title>    

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Ajax no-refresh form submission