传递表单值以发送邮件

Question

这是我的表单（HTML）：

<form id="contact_form" name="contact_form" method="post" action="<?php echo htmlentities($_SERVER['SCRIPT_NAME']); ?>">
    <input type="text" placeholder="Nome e cognome" name="nome" id="nome" style="width:290px">
    <br>
    <br>
    <input type="text" placeholder="Azienda" name="azienda" id="azienda" style="width:290px">
    <br>
    <br>
    <input type="text" placeholder="Città" name="citta" id="citta" style="width:290px">
    <br>
    <br>
    <input type="text" placeholder="Recapito telefonico" name="telefono" id="telefono" style="width:290px">
    <br>
    <br>
    <input type="text" placeholder="Email" name="email" id="email" style="width:290px">
    <br>
    <br>
    <input type="text" placeholder="Tipo di evento" name="tipodievento" id="tipodievento" style="width:290px">
    <br>
    <br>
    <input type="text" placeholder="Numero di invitati stimato" name="invitati" id="invitati" style="width:290px">
    <br>
    <br>
    <textarea placeholder="Descrizione" style="max-width:600px;max-height:400px;width:290px;height:200px" name="messaggio" id="messaggio">
    </textarea>
    <br>
    <br>
    <div id="boingdiv" style="width:300px;position:relative;">
        <input type="checkbox" name="checkbox" id="checkbox" />
        <small> Ho preso visione dell'<a style="color:#b40734" href="images/contatti/informativa.pdf" target="_blank">informativa</a></small>
    </div>
    <br>
    <br>
    <input id="submit_it" name="submit_it" type="button" value="Invia">
</form>

这是我的JS（jQuery）函数，用于检查是否填充了输入并选中了复选框（唯一的输入不是强制性的是“azienda”）：

arrValidate = ['nome','citta','telefono','email','tipodievento','invitati','messaggio']

$(document).ready(function() {

    $('#submit_it').click(function() {
        var nextFld, i ;

        //Validate the checkbox:
        if ( $('#checkbox').is(':checked') == false ) {
            alert('You must read the informativa and check the checkbox at bottom of form');
            boing();
            return false;
        }

        //Validate the rest of the fields
        for (i=0; i<arrValidate.length; i++){
            nextFld = arrValidate[i];
            if ( $.trim($('#'+nextFld).val()) == '') {
                alert('Please complete all fields. You missed the ['  +nextFld+ '] field.');
                $('#'+nextFld).css({'border':'1px solid red','background':'yellow'});
                $('#'+nextFld).focus();
                return false;
            }
        }

        //if it gets here, all is okay: submit!
        $('form#contact_form').submit();
    }); //END submit button click event

    //Remove any css validation coloring
    $('input:not([type=button])').blur(function(){
        $(this).css({'border':'1px solid lightgrey','background':'white'});
    });
    //Remove any background coloring from checkbox div
    $('#checkbox').click(function() {
        $('#boingdiv').css({'background':'white'});
    });
    //Remove existing value/text upon entry into field
    $('input:not([type=button]').focus(function() {
        $(this).val('');
    });

}); //END document.ready

function boing(){
    $('#boingdiv')
        .css({'background':'wheat'})
        .animate({ left: "-10px" }, 100).animate({ left: "10px" }, 100)
        .animate({ left: "-10px" }, 100).animate({ left: "10px" }, 100)
        .animate({ left: "0px" }, 100)
        .focus();
}

最后这是应该发送邮件的PHP脚本：

<?php
$your_email ='MY EMAIL ADDRESS';

if(isset($_POST['submit_it']))
{

    $nome = $_POST['nome'];
    $email = $_POST['email'];
    $citta = $_POST['citta'];
    $telefono = $_POST['telefono'];
    $tipodievento = $_POST['tipodievento'];
    $invitati = $_POST['invitati'];
    $azienda = $_POST['azienda'];
    $messaggio = $_POST['messaggio'];


        $to = $your_email;
        $subject="Nuova mail dal form per i contatti";
        $from = $your_email;

        $body = "$nome ha inviato un messaggio tramite il contact form:\n".
        "Nome: $nome\n".
        "Citta: $citta\n".
        "Evento: $tipodievento\n".
        "Azienda: $azienda\n".
        "Numero di invitati: $invitati\n".
        "Telefono: $telefono\n".
        "Email: $email \n".
        "Messaggio: \n".
        "$messaggio\n";

        $headers = "From: $from \r\n";
        $headers .= "Reply-To: $email \r\n";

        mail($to, $subject, $body, $headers);
}
?>

字段验证（jQuery）工作正常。如果未填写所有字段，则无法单击“提交”按钮。问题在于“后端”部分。邮件未发送。电子邮件服务器没有问题。我尝试了其他形式，它的工作原理..在最后一段代码中应该有一些错误。因为我在共享主机上，所以无法看到日志。