PHP Email form not sending. Can someone look at my code to see if they notice something.
Below is the html form in my index.html
    <form class= "contact-form" action="php/send.php" method="post">
                <input type="text" name="subject" placeholder="Subject" required />
                <input type="email" name="email" type= "email" placeholder="Email" required />
                <textarea name="message" placeholder="Message" required></textarea>
                <input type="submit" name "submit" value"Send" class="sub-btn">
            </form>
Below is my php code to send
<?php
if(isset($_POST['submit'])){
    $subject = $_POST['subject'];
    $email = $_POST['email'];
    $message = $_POST['message'];
    $to = 'myemail@gmail.com';
    if(mail($to,$subject,$message)){
        echo "Sent Successfully! We will contact you shortly!";        
    }
    else
    {
        echo "Something went wrong!";
    }
    }
?>
 
     
    