[oop] Simpel Contact Formulier

<?php
require 'contact.class.php';
?>

<form action="" method="post">

<?php
if (isset($_POST["submit"])) {

$sendMail 		= new gw2Mail();

$sendMail->senderName 	= $_POST['senderName'];
$sendMail->senderEmail 	= $_POST['senderEmail'];
$sendMail->recipient 	= $_POST['recipient'];
$sendMail->copy 	= $_POST['copy'];
$sendMail->subject 	= $_POST['subject'];
$sendMail->message 	= $_POST['message'];

$sendMail->sendMail();

}
?>

<table class='ipb_table ipsMemberList'>

	<tr class='header' colspan='4'>
		<th scope='col' colspan='5'>Send E-mail</th>
	</tr>

	<tr class='row1'>
		<td style='width: 50%'><strong>From:</strong><br />Enter the sender's name in this field.</td>
		<td><input type="text" class="input_text" name="senderName" id="senderName" value="<?php if (isset($_POST['senderName'])) { echo $_POST['senderName']; } ?>" size="50" maxlength="125" /></td>
	</tr>

	<tr class='row2'>
		<td style='width: 50%'><strong>From E-mail:</strong><br />Enter the sender's e-mail address in this field.</td>
		<td><input type="text" class="input_text" name="senderEmail" id="senderEmail" value="<?php if (isset($_POST['senderEmail'])) { echo $_POST['senderEmail']; } ?>" size="50" maxlength="125" /></td>
	</tr>

	<tr class='row1'>
		<td style='width: 50%'><strong>Recipient:</strong><br />Enter the recipient's e-mail address in this field.</td>
		<td><input type="text" class="input_text" name="recipient" id="recipient" value="<?php if (isset($_POST['recipient'])) { echo $_POST['recipient']; } ?>" size="50" maxlength="125" /></td>
	</tr>

	<tr class='row2'>
		<td style='width: 50%'><strong>Carbon Copy:</strong><br />Send a copy to someone else? Enter another e-mail address here. Leave blank for no copy.</td>
		<td><input type="text" class="input_text" name="copy" id="copy" value="<?php if (isset($_POST['copy'])) { echo $_POST['copy']; } ?>" size="50" maxlength="125" /></td>
	</tr>

	<tr class='row1'>
		<td style='width: 50%'><strong>Subject:</strong><br />Enter a subject in this field.</td>
		<td><input type="text" class="input_text" name="subject" id="subject" value="<?php if (isset($_POST['subject'])) { echo $_POST['subject']; } ?>" size="50" maxlength="50" /></td>
	</tr>

	<tr class='row2'>
		<td colspan='2' style='width: 100%'><textarea style="height: 250px; width: 99%;" name="message" id="message" cols="30" rows="14" virtual wrap="on"><?php if (isset($_POST['message'])) { echo $_POST['message']; } ?></textarea></td>
	</tr>

</table>

<input type="submit" name="submit" value="Submit" tabindex="50" class="input_submit" accesskey="s" />

</form>

<?php

class gw2Mail {

    var $senderName;
    var $senderEmail;
    var $recipient;
    var $copy;
    var $subject;
    var $message;
    var $bcc;

    public function sendMail()
    {
            if ($this->senderName != "") {
                $this->senderName = filter_var($this->senderName, FILTER_SANITIZE_STRING);
                if ($this->senderName == "") {
                    $errors .= '- Please enter a valid name!';
                }
            } else {
                $errors .= '- You forgot to enter a name!<br />';
            }

            if ($this->senderEmail != "") {
                $this->senderEmail = filter_var($this->senderEmail, FILTER_SANITIZE_STRING);
                if ($this->senderEmail == "") {
                    $errors .= '- Please enter a valid Email!';
                }
            } else {
                $errors .= '- You forgot to enter an email!<br />';
            }

            if ($this->recipient != "") {
                $this->recipient = filter_var($this->recipient, FILTER_SANITIZE_STRING);
                if ($this->recipient == "") {
                    $errors .= '- Please enter a valid recipient email!';
                }
            } else {
                $errors .= '- You forgot to enter a recipient email!<br />';
            }

            if ($this->subject != "") {
                $this->subject = filter_var($this->subject, FILTER_SANITIZE_STRING);
                if ($this->subject == "") {
                    $errors .= '- Please enter a valid subject!';
                }
            } else {
                $errors .= '- You forgot to enter a subject!<br />';
            }

            if ($this->message != "") {
                $this->message = filter_var($this->message, FILTER_SANITIZE_STRING);
                if ($this->message == "") {
                    $errors .= '- Please enter a valid message!';
                }
            } else {
                $errors .= '- You forgot to enter a message!<br />';
            }

            if (!$errors) {

            $this->bcc="";

            $headers = "From: $this->senderName <$this->senderEmail>";
            $headers .= "\r\nCc: $this->copy";
            $headers .= "\r\nBcc: $this->bcc\r\n\r\n";

            $send_contact=mail("$this->recipient","$this->subject","$this->message","$headers");

            } else {
            echo '<p class=\'message error\'>';
            echo '<font color="#FFFFFF">' . $errors . '</font>';
            echo '</p><br />';
            }
    }
    }
?>

            } else {
            echo '<p class=\'message error\'>';
            echo '<font color="#FFFFFF">' . $errors . '</font>';
            echo '</p><br />';
            }