contact_reservations.php

<?php
if($_POST)
{
	$to_Email   	= "info@century.consulting"; //Replace with recipient email address
	$subject        = 'Message from website '.$_SERVER['SERVER_NAME']; //Subject line for emails
	
	
	//check if its an ajax request, exit if not
    if(!isset($_SERVER['HTTP_X_REQUESTED_WITH']) AND strtolower($_SERVER['HTTP_X_REQUESTED_WITH']) != 'xmlhttprequest') {
	
		//exit script outputting json data
		$output = json_encode(
		array(
			'type'=>'error', 
			'text' => 'Request must come from Ajax'
		));
		
		die($output);
    } 
	
	//check $_POST vars are set, exit if any missing
	if(!isset($_POST["userName"]) || !isset($_POST["userPhone"]))
	{
		$output = json_encode(array('type'=>'error', 'text' => 'Input fields are empty!'));
		die($output);
	}

	//Sanitize input data using PHP filter_var().
	$user_Name        = filter_var($_POST["userName"], FILTER_SANITIZE_STRING);
	$user_Phone       = filter_var($_POST["userPhone"], FILTER_SANITIZE_STRING);
	$user_Date        = filter_var($_POST["userDate"], FILTER_SANITIZE_STRING);
	$user_Time        = filter_var($_POST["userTime"], FILTER_SANITIZE_STRING);
	$user_Message     = filter_var($_POST["userMessage"], FILTER_SANITIZE_STRING);
	
	$user_Message = str_replace("\&#39;", "'", $user_Message);
	$user_Message = str_replace("&#39;", "'", $user_Message);
	
	//additional php validation
	if(strlen($user_Name)<4) // If length is less than 4 it will throw an HTTP error.
	{
		$output = json_encode(array('type'=>'error', 'text' => 'Name is too short or empty!'));
		die($output);
	}
	
	if(strlen($user_Phone)<4) // If length is less than 4 it will throw an HTTP error.
	{
		$output = json_encode(array('type'=>'error', 'text' => 'Phone is too short or empty!'));
		die($output);
	}
	
	//proceed with PHP email.
	$headers = 'X-Mailer: PHP/' . phpversion();
	
	$sentMail = @mail($to_Email, $subject, $user_Message . "\r\n\n"  .'Name: '.$user_Name. "\r\n" .'Phone: '.$user_Phone. "\r\n" .'Date: '.$user_Date. "\r\n" .'Time: '.$user_Time, $headers);
	
	if(!$sentMail)
	{
		$output = json_encode(array('type'=>'error', 'text' => 'Could not send mail! Please check your PHP mail configuration.'));
		die($output);
	}else{
		$output = json_encode(array('type'=>'message', 'text' => 'Hi '.$user_Name .'! Thank you for your email'));
		die($output);
	}
}
?>