通过 PHP 中的表单类型 html 发送电子邮件 - Sending an email through form type html in PHP

Sending an email through form type html in PHP

<?php
//if "email" variable is filled out, send email
if (isset($_REQUEST['email']))  {
    //Email information
    $admin_email = "personalemail@gmail.com";
    $email = $_REQUEST['email'];
    $subject = $_REQUEST['subject'];
    $comment = $_REQUEST['comment'];
    //send email
    mail($admin_email, "$subject", $comment, "From:" . $email);
    //Email response
    echo "Thank you for contacting us!";
}
//if "email" variable is not filled out, display the form
else  {
?>
<form method="post">
    <input name="email" type="text" class="form-control" placeholder="Enter your email address...">
    <input name="subject" type="text" class="form-control" placeholder="Subject">
    <br>
    <textarea name="comment" class="form-control" rows="3"></textarea>
    <br>
    <div class="mesbutts">
        <button type="submit" class="btn btn-primary" value="Submit">Send</button>
        <button type="reset" value="Reset" class="btn btn-default" >Clear</button>
    </div>
</form>
<?php 
} 
?>

大家好，我似乎无法弄清楚如何让我的 PHP 代码通过使用表单发送电子邮件。我已经放了我的个人电子邮件，但我似乎无法收到它们。你能帮我发现语法中的错误吗？

谢谢伙计！

我认为这对你有帮助。但是使用库通过php发送电子邮件的更好方法，例如phpMailer或通过库发送电子邮件。

   <?php
//if "email" variable is filled out, send email
if (isset($_REQUEST['email']))  {
    $headers  = 'MIME-Version: 1.0' . "'r'n"; // set mime version
    $headers .= 'Content-type: text/html; charset=iso-8859-1' . "'r'n"; // set content-type as html
    //Email information
    $admin_email = "personalemail@gmail.com";
    $email = $_REQUEST['email'];
    $subject = $_REQUEST['subject'];
    $comment = $_REQUEST['comment'];
    //send email
    mail($admin_email, "$subject", $comment, "From:" . $email,$headers); // adding headers to mail
    //Email response
    echo "Thank you for contacting us!";
}
//if "email" variable is not filled out, display the form
else  {
?>
<form method="post">
    <input name="email" type="text" class="form-control" placeholder="Enter your email address...">
    <input name="subject" type="text" class="form-control" placeholder="Subject">
    <br>
    <textarea name="comment" class="form-control" rows="3"></textarea>
    <br>
    <div class="mesbutts">
        <button type="submit" class="btn btn-primary" value="Submit">Send</button>
        <button type="reset" value="Reset" class="btn btn-default" >Clear</button>
    </div>
</form>
<?php 
} 
?>