tell a friend.php

There is one small change that I need to do in the below codes is if we do not type the email ids in "friend email 2" and "friend email 3" fields then the admin should not receive the cc copy at hosting@hostbaap.com

<?php
	
	/******************************************************************************
     * Tell A Friend Script: 
	 * This script allows your visitors to sent invitation to their friends via email to visit your site.
	 *
	 * Usage: 
	 * The script comes with three files tell_a_friend.php, thankyou.html and install.txt
	 * You're NOT allowed to redistribute or sell this script.
	 * You are allowed to modify this script for your own personal use.	 
	 * Please see install.txt attached in the zip for installation instructions.
	 *
	 * Notes:
	 * If you like this script or used it for your website or project.
	 * Please remember too link back to www.php-learn-it.com. 
	 * Your help is always appreciated.
	 *
	 * author: webdev (php-learn-it.com (or phplearnit.com)
	 * Visit www.php-learn-it.com (or www.phplearnit.com) for more script and tutorials on PHP.
	 *****************************************************************************/
 
	//minimum characters allowed in the message box
	$msg_min_chars = "10";
 
	//maximum characters allowed in the message box
	$msg_max_chars = "250";
	
	$errors = array();
 
	function validate_form_items()
	{
	   global $msg_min_chars, $msg_max_chars;
	   $msg_chars = "{".$msg_min_chars.",".$msg_max_chars."}";
 
	   $form_items = array(
		   
		   "name"  => array(
						   "regex" => "/^([a-zA-Z '-]+)$/",
						   "error" => "Your name appears to be in improper format",
						   ),
			"email" => array(
						   "regex" =>
							"/^[A-Za-z0-9](([_\.\-]?[a-zA-Z0-9]+)*)@([A-Za-z0-9]+)(([\.\-]?[a-zA-Z0-9]+)*)\.([A-Za-z]{2,})$/",
						   "error" => "email address is invalid",
						   ),
		   "message" => array(
						   "regex" => "/.*/",
						   "error" => "Your message is either too short or exceeds $msg_max_chars characters",
						   ),
	   );
 
	   global $errors;
		
		if(!preg_match($form_items["name"]["regex"], $_POST["your_name"]))
			$errors[] = $form_items["name"]["error"];
 
		if(!preg_match($form_items["email"]["regex"], $_POST["your_email"]))
			$errors[] = "your ".$form_items["email"]["error"];
 
		if(!preg_match($form_items["email"]["regex"], $_POST["friend_email1"]))
			$errors[] = "Friend 1 ".$form_items["email"]["error"];
 
		if(strlen(trim($_POST["message"])) < $msg_min_chars || strlen(trim($_POST["message"])) >  $msg_max_chars )
			$errors[] = $form_items["message"]["error"];
 
		if(trim($_POST["friend_email2"]) != "")
		{
			if(!preg_match($form_items["email"]["regex"], $_POST["friend_email2"]))
				$errors[] = "Friend 2 ".$form_items["email"]["error"];
		}
		
		if(trim($_POST["friend_email3"]) != "")
		{
			if(!preg_match($form_items["email"]["regex"], $_POST["friend_email3"]))
				$errors[] = "Friend 3 ".$form_items["email"]["error"];
		}
		
	   return count($errors);
	}
	
	function email($from, $from_name, $to, $message)
	{
		//header("Location: thankyou.html");return;
 
		$headers .= "From: ".$from."\r\n";
		$headers .= "Content-type: text/plain; charset=ISO-8859-1";
		
		$your_domian_name = "www.hostbaap.com/class5-14";
		//edit what you want your vistors to see in their email here
		$subject = $from_name." sent you an invitation to $your_domian_name";
		$your_message = "Hi!\r\n";
		$your_message.= ucfirst($from_name);
		$your_message.= " wants you to check out $your_domian_name\r\n";
		$your_message.= "Sender's Message:\n\r";
 
		$message=$your_message.stripslashes($message);
 
		if (mail($to,$subject,$message,$headers) ) {
			return true;
		} else {
			return false;
		}
	}
 
	function print_error($errors)
	{
		
		foreach($errors as $error)
		{
			$err.=$error."<br/>";
		}
 
		echo 
		 "<div style=\"border:1px red solid; font-size:14px; font-weight:normal; color:red; margin:10px; padding:10px;\">
			$err
		 <div>";
		
	}
	
	function form_process()
	{	
		$from_name = $_POST["your_name"];
		$from_email = $_POST["your_email"];
		
		$to = $_POST["your_email"].",".$_POST["friend_email1"].",".$_POST["friend_email2"].",".$_POST["friend_email3"];
		$message = $_POST["message"];
		
		$error_count = validate_form_items();
		
		if($error_count == 0)
		{
			if(email($from_email, $from_name, $to, $message))
				header("Location: thankyou.html");
			else
			{
				global $errors;
				$errors[] = "Email coudn't be send at this time. <br>Please report the webmaster of this error.";
			}
		}
		
		
	}
	
	
 
	if(isset($_POST["submit"]))
		form_process();
 
?>
 
<html>
	<title>php-learn-it.com - Email Form Script</title>
	<head>
	
	</head>
 
	<body>
	   <form id="test" method="post" action="<?php echo $PHP_SELF?>" >
		<table border="0">
			   
 
			   <tr>
				   <td colspan="2" style="border-bottom:1px solid black;">
 
					  <font size="+2"><b>Tell A Friend</b></font>
					  
 
				   </td>
			   </tr>
				
 
				<tr>
				   <td colspan="2">
					   <?php
							global $errors;
							if(count($errors) != 0){
								print_error($errors);
							}
						?>
				   </td>
			   </tr>
 
			   <tr>
				   <td>
						<b>Your Name:*</b>
				   </td>
				   <td>
						<b>Your Email:*</b>
				   </td>
			   </tr>
 
			   <tr>
				   <td>
						
						<input type="text" name="your_name" id="name" size="20" maxlength="25" value="<?php echo $_POST["your_name"]?>">
				   </td>
				   <td>
						<input type="text" name="your_email" id="email" size="31" maxlength="80" value="<?php echo $_POST["your_email"]?>">
				   </td>
			   </tr>
				
				<tr>
				   <td colspan="2">
						<b>Friend's Email:</b>*<br/>
						<input type="text" name="friend_email1" id="name" size="56" maxlength="80" value="<?php echo $_POST["friend_email1"]?>">
				   </td>
				   
			   </tr>
 
			   <tr>
				   <td colspan="2">						
						<b>Friend's Email:</b><br/>
						<input type="text" name="friend_email2" id="name" size="56" maxlength="80" value="<?php echo $_POST["friend_email2"]?>">
				   </td>
				</tr>
				
				<tr>
				   <td colspan="2">						
						<b>Friend's Email:</b><br/>
						<input type="text" name="friend_email3" id="name" size="56" maxlength="80" value="<?php echo $_POST["friend_email3"]?>">
				   </td>
				</tr>
 
			   <tr>
				   <td>
						<b>Message:*</b> 
				   </td>
				   <td>
						<i>(max 250 characters allowed)</i>
				   </td>
			   </tr>
			   <tr>
				   <td colspan="2">
						<textarea name="message" id="message" cols="42" rows="5"><?php echo $_POST["message"]?></textarea>
				   </td>
			   </tr>
			   <tr>
				   <td colspan="2" align="right">
						<i>(* required fields)</i> <input type="submit" value="submit" name="submit" >
				   </td>
			   </tr>
		</table>
		</form>
 
		
	</body>
	
</html>

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