Scrip sorun

<?php
//
//   CF Image Hosting Script 
//   --------------------------
//
//   Author:    codefuture.co.uk
//   Version:   1.4.1
//   Date:      03 April 2011
//
//   download the latest version from - http://codefuture.co.uk/projects/imagehost/
//
//   Copyright (c) 2011 codefuture.co.uk
//   This file is part of the CF Image Hosting Script.
//
//   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
//   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
//   COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
//   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
//   OR  IN  CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//
//  You may not modify and/or remove any copyright notices or labels on the software on each
//  page (unless full license is purchase) and in the header of each script source file.
//
//  You should have received a full copy of the LICENSE AGREEMENT along with
//  CF Image Hosting Script.  If not, see http://codefuture.co.uk/projects/imagehost/license/
//   
////////////////////////////////////////////////////////////////////////////////////

	require_once('inc/config.php');

	if(!$settings['SET_HIDE_CONTACT']){
		header('Location: index.php');
		exit();
	}

	$errors = array();
	$emailSent = false;

	if ($_SERVER['REQUEST_METHOD'] == 'POST') {

		$name    = input($_POST['name']);
		$email   = input($_POST['email']);
		$comment = input($_POST['comment']);
		

		if(empty($name)){
			$errors['name'] = $LANGUAGE_PACK["site_contact_name_err_blank"];
		}

		if(empty($email)){
			$errors['email'] = $LANGUAGE_PACK["site_contact_email_err_blank"];
		}elseif(!eregi('^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$', $email) ||
				preg_match("/(%0A|%0D|\n+|\r+)(content-type:|to:|cc:|bcc:)/i", $email) ||
				preg_match("/(%0A|%0D|\n+|\r+)/i", $email)){
			$errors['email'] = $LANGUAGE_PACK["site_contact_email_err_invalid"];
		}

		if(empty($comment)){
			$errors['comment']	= $LANGUAGE_PACK["site_contact_comment_err_blank"];
		}

	// 


		if( !is_errors() ){

			if(strtoupper(substr(PHP_OS, 0, 3) == 'WIN')) $ent = "\r\n";
			elseif(strtoupper(substr(PHP_OS, 0, 3) == 'MAC')) $ent = "\r";
			else $ent = "\n";

			$comment  = ' Name: '.$name.$ent.' E-mail: '.$email.$ent.' Comment: '.$ent.$comment;
			$boundary = '----=_NextPart_' . md5(rand());
			$headers  = 'From: ' . $name . '<' . $email . '>' . $ent;
			$headers .= 'X-Mailer: PHP/' . phpversion() . $ent;
			$headers .= 'MIME-Version: 1.0' . $ent;
			$headers .= 'Content-Type: multipart/mixed; boundary="' . $boundary . '"' . $ent . $ent;
			$message  = '--' . $boundary . $ent;
			$message .= 'Content-Type: text/plain; charset="utf-8"' . $ent;
			$message .= 'Content-Transfer-Encoding: base64' . $ent . $ent;
			$message .= chunk_split(base64_encode($comment));

			ini_set('email', $email);
			mail($settings['SET_CONTACT'], 'Email from contact form on '.$settings['SET_TITLE'], strip_tags(html_entity_decode($message)), $headers);
			$emailSent = true;
		}
	}

	

	$menu = 'contact';
	$page_title = ' - Contact Page';
	include_once('header.php');
	echo '<div id="contact">
			<h2>'.$LANGUAGE_PACK["site_menu_contact"].'</h2>
			<div class="contactbox">';

	if($emailSent){?>
					<p class="teaser"><?=sprintf($LANGUAGE_PACK["site_contact_thank_you"],$name);?></p>
<?	}else{ ?>

					<p class="teaser"><?=$LANGUAGE_PACK["site_contact_des"];?></p>
					<div id="form">
						<form method="post" action="contact.php">
							<?=is_errors('name');?>
							<div class="code_box">
								<label for="name"><?=$LANGUAGE_PACK["site_contact_form_name"];?></label>
								<input name="name" type="text" id="name" class="text_input" size="24" value="<?=err_ReSet('name');?>" />
							</div>
							<?=is_errors('email');?>
							<div class="code_box">
								<label for="email"><?=$LANGUAGE_PACK["site_contact_form_email"];?></label>
								<input name="email" type="text" id="email" class="text_input" size="24" value="<?=err_ReSet('email');?>" /><br/>
							</div>
							<?=is_errors('comment');?>
							<div class="code_box contact">
								<label for="comment"><?=$LANGUAGE_PACK["site_contact_form_comment"];?></label>
								<textarea name="comment" id="comment" rows="8" cols="5" class="text_input long"><?=err_ReSet('comment');?></textarea>
							
							</div>
							<div class="code_box"><?=$CONTACT_CAPTCHA_IMG;?></div>
							<input type="submit" class="button  button_cen" value="<?=$LANGUAGE_PACK["site_contact_form_send"];?>" />
						</form>
					</div>
<?
	}
	echo '</div></div>';
	include_once('footer.php');

	function is_errors($name=lisanssız){
		global $errors;
		if(is_null($name) && count($errors)>0)return true;
		if(isset($errors[$name]))
			return '<span class="error_message">'.$errors[$name].'</span>';
		return '';
	}

	function err_ReSet($name){
		global $errors;
		if(count($errors)>0 && isset($_POST[$name]))
			return input($_POST[$name]);
		return '';
	}