使用方法get而不是post重定向表单

Question

我的文件名为contact.php，里面有表格：

<form method="post" name="kontakt" action="send_mail.php">
  <fieldset class="formularz_kontaktowy">
    <legend>Formularz kontaktowy</legend>
    <div><label id="lblStatus"></label></div>
    <div><input type="text" name="txtName" title="Imię i nazwisko" id="txtName" class="text"></div>
    <div><input type="text" name="txtEmail" title="Email" id="txtEmail" class="text"></div>
    <div><input type="text" name="txtTitle" title="Tytuł" id="txtTitle" class="text"></div>
    <div><textarea cols="30" rows="10" name="txtMessage" id="txtMessage" class="text" title="Treść wiadomości"></textarea></div>
    <input type="submit" name="btnSendmail" value=Send">
  </fieldset>
</form>

在浏览器中单击btnSendmail后我有URL，例如：localhost / contact.php？txtName = Mary + Smith＆amp; txtEmail = mailMail％40gmail.com＆amp; txtTitle = dfd＆amp; txtMessage = fgdf＆amp; btnSendmail = Send，但我认为它应该是localhost / send_mail.php。这是什么原因？

编辑：send_mail.php

<?php
  require_once "Mail.php";

    $from = "<mailaddress@gmail.com>";
    $to = "<mail2@gmail.com>";
    $subject = "Hi!";
    $body = "Hi,\n\nHow are you?";

    $host = "ssl://smtp.gmail.com";
    $port = "465";
    $username = "<mailaddress@gmail.com>";
    $password = "password";

    $headers = array ('From' => $from,
      'To' => $to,
      'Subject' => $subject);
    $smtp = Mail::factory('smtp',
      array ('host' => $host,
        'port' => $port,
        'auth' => true,
        'username' => $username,
        'password' => $password));

    $mail = $smtp->send($to, $headers, $body);

    if (PEAR::isError($mail)) {
      echo("<p>" . $mail->getMessage() . "</p>");
     } else {
      echo("<p>Message successfully sent!</p>");
     }

?>