Php 邮件脚本不工作

我找到了一个关于如何创建甜蜜联系人表单的指南，不幸的是它不起作用。

这是我的表格：` 您的电子邮件已发送。胡萨

        <?php if(isset($hasError) || isset($captchaError) ) { ?>
                    <p class="alert">Error submitting the form</p>
                <?php } ?>
            <form id="contact-us" action="index.php" method="post">
            <label class="formtitle">Name</label>
            <input type="text" name="contactName" id="contactName" value="<?php if(isset($_POST['contactName'])) echo $_POST['contactName'];?>" class="text requiredField" />
                        <?php if($nameError != '') { ?>
                            <br /><span class="error"><?php echo $nameError;?></span> 
                        <?php } ?>
            <label class="formtitle">Email</label>
           <input type="text" name="email" id="email" value="<?php if(isset($_POST['email']))  echo $_POST['email'];?>" class="text requiredField email" />
                        <?php if($emailError != '') { ?>
                            <br /><span class="error"><?php echo $emailError;?></span>
                        <?php } ?>
            <label class="formtitle">Message</label>
            <textarea name="comments" id="commentsText" class="textmessage requiredField"><?php if(isset($_POST['comments'])) { if(function_exists('stripslashes')) { echo stripslashes($_POST['comments']); } else { echo $_POST['comments']; } } ?></textarea>
                        <?php if($commentError != '') { ?>
                            <br /><span class="error"><?php echo $commentError;?></span> 
                        <?php } ?>
            <button name="submit" type="submit" class="formbutton">Send!</button>
            <input type="hidden" name="submitted" id="submitted" value="true" />
            </form>
           <?php } ?> 

        <?php if(isset($hasError) || isset($captchaError) ) { ?>
                    <p class="alert">Error submitting the form</p>
                <?php } ?>
            <form id="contact-us" action="index.php" method="post">
            <label class="formtitle">Name</label>
            <input type="text" name="contactName" id="contactName" value="<?php if(isset($_POST['contactName'])) echo $_POST['contactName'];?>" class="text requiredField" />
                        <?php if($nameError != '') { ?>
                            <br /><span class="error"><?php echo $nameError;?></span> 
                        <?php } ?>
            <label class="formtitle">Email</label>
           <input type="text" name="email" id="email" value="<?php if(isset($_POST['email']))  echo $_POST['email'];?>" class="text requiredField email" />
                        <?php if($emailError != '') { ?>
                            <br /><span class="error"><?php echo $emailError;?></span>
                        <?php } ?>
            <label class="formtitle">Message</label>
            <textarea name="comments" id="commentsText" class="textmessage requiredField"><?php if(isset($_POST['comments'])) { if(function_exists('stripslashes')) { echo stripslashes($_POST['comments']); } else { echo $_POST['comments']; } } ?></textarea>
                        <?php if($commentError != '') { ?>
                            <br /><span class="error"><?php echo $commentError;?></span> 
                        <?php } ?>
            <button name="submit" type="submit" class="formbutton">Send!</button>
            <input type="hidden" name="submitted" id="submitted" value="true" />
            </form>
           <?php } ?> 

提交表单时出错

        <?php if(isset($hasError) || isset($captchaError) ) { ?>
                    <p class="alert">Error submitting the form</p>
                <?php } ?>
            <form id="contact-us" action="index.php" method="post">
            <label class="formtitle">Name</label>
            <input type="text" name="contactName" id="contactName" value="<?php if(isset($_POST['contactName'])) echo $_POST['contactName'];?>" class="text requiredField" />
                        <?php if($nameError != '') { ?>
                            <br /><span class="error"><?php echo $nameError;?></span> 
                        <?php } ?>
            <label class="formtitle">Email</label>
           <input type="text" name="email" id="email" value="<?php if(isset($_POST['email']))  echo $_POST['email'];?>" class="text requiredField email" />
                        <?php if($emailError != '') { ?>
                            <br /><span class="error"><?php echo $emailError;?></span>
                        <?php } ?>
            <label class="formtitle">Message</label>
            <textarea name="comments" id="commentsText" class="textmessage requiredField"><?php if(isset($_POST['comments'])) { if(function_exists('stripslashes')) { echo stripslashes($_POST['comments']); } else { echo $_POST['comments']; } } ?></textarea>
                        <?php if($commentError != '') { ?>
                            <br /><span class="error"><?php echo $commentError;?></span> 
                        <?php } ?>
            <button name="submit" type="submit" class="formbutton">Send!</button>
            <input type="hidden" name="submitted" id="submitted" value="true" />
            </form>
           <?php } ?> 

名称
$（'head'）。追加（数据）；在$post回调函数中，谢谢，这正是它所需要的