PHP $ _POST下拉

Question

I've successfully managed to display and send all the text fields values, but I'm having problems checking that day, month and year have been selected and displaying an error message if they haven't. Once selected and passed validation, I am sending the values using the form scripts.

Here is what I've done, If anyone could help me validate the dropdown options, send the values to the email address, and redirect to the "thank you" page once passed submission I'd most appreciate it.

<form name="form1" e class="membership-form membership-form-stage-two" method="post" action="form-one.php">
    <div class="half">
        <h4>First Name</h4>
        <input name="firstname" type="text" id="firstname" value="<?php echo $_POST['firstname']; ?>" class="">
    </div>
    <div class="half lasthalf">
        <h4>Last Name</h4>
        <input name="lastname" type="text" id="lastname" value="<?php echo $_POST['lastname']; ?>" class="">
    </div>

    <h4>Date of Birth</h4>
    <select class="day" name="day">
        <option>Day</option>
        <option value="">1</option>
        <option value="">2</option>
    </select>

    <select class="month" name="month"> 
        <option>Month</option>
        <option value="">1</option>
        <option value="">2</option>
    </select>

    <select class="year" name="year">
        <option>Year</option>
        <option value="">1</option>
        <option value="">2</option>
    </select>

    <h4>Email Address</h4>
    <input name="emailaddress" type="text" id="emailaddress" value="<?php echo $_POST['emailaddress']; ?>" class="">

    <h4>Select your Favourite </h4>
    <div class="favorite">
        <select>
            <option value="North"> North</option>
            <option value="Central">Central</option>
            <option value="East">East</option>
        </select>
    </div>

    <h4>Company Name (for Business Buddies)</h4>
    <input name="companyname" type="text" id="companyname" value="<?php echo $_POST['companyname']; ?>" class="">

    <input type="submit" name="Submit" value="Finish" class="membership-finish">
</form>    

<?php
if (isset($_POST['Submit'])) {
    if ($_POST['firstname'] != "") {
        $_POST['firstname'] = filter_var($_POST['firstname'], FILTER_SANITIZE_STRING);
        if ($_POST['firstname'] == "") {
            $errors .= 'Please enter a valid name.<br/><br/>';
        }
    } else {
        $errors .= 'Please enter your name.<br/>';
    }

    if ($_POST['lastname'] != "") {
        $_POST['lastname'] = filter_var($_POST['lastname'], FILTER_SANITIZE_STRING);
        if ($_POST['lastname'] == "") {
            $errors .= 'Please enter a valid name.<br/><br/>';
        }
    } else {
        $errors .= 'Please enter your name.<br/>';
    }

    if ($_POST['emailaddress'] != "") {
        $emailaddress = filter_var($_POST['emailaddress'], FILTER_SANITIZE_EMAIL);
        if (!filter_var($emailaddress, FILTER_VALIDATE_EMAIL)) {
            $errors .= "$emailaddress <strong>NOT</strong> a valid email address.<br/><br/>";
        }
    } else {
        $errors .= 'Please enter your email address.<br/>';
    }


    if ($_POST['companyname'] != "") {
        $_POST['companyname'] = filter_var($_POST['companyname'], FILTER_SANITIZE_STRING);
        if ($_POST['companyname'] == "") {
            $errors .= 'Please enter a valid name.<br/><br/>';
        }
    } else {
        $errors .= 'Please enter your name.<br/>';
    }


    if (!$errors) {
        $mail_to = '[e-mail]';
        $subject = 'test';
        $message  = 'Name: ' . $_POST['firstname'] .' ' . $_POST['lastname'] . "
";
        $message .= 'Email Address: ' . $_POST['emailaddress'] . "
";
        $message .= 'Company: ' . $_POST['companyname'] . "
";
        mail($mail_to, $subject, $message);  

        header( 'Location: thank-you-one.php' ) ;

    } else {
        echo "<div class='error-message'><span>Please complete the fields in red</span></div>";
    }
}
?>

Answer 1

Just add this line, after the check for the companyname

if(!checkdate($_POST['month'],$_POST['day'],$_POST['year'])){
      $errors .= 'Please enter a valid DOB<br/><br/>';
}