Revonzy Mini Shell

<?php 
require_once('lib/function.php');
	$db=new login_function();


	$flag 				= 	0;
	
	
	
	$var_veh_no = "";
	$var_veh_name = "";
	$var_mobile_number = "";
	$var_address = "";
	$var_fitness_upto_date = "";
	$var_lic_expiry = "";
	$var_insurance_expiry = "";
	$var_puc_expiry = "";
	$var_permit_expiry = "";
	$var_other_1 = "";
	$var_other_2 = "";
	$actual_image_name = "-";
	
	
	if(isset($_POST['add']))
	{
		echo 54545;
		$var_veh_no = $_POST['vehical_number'];
	    $var_veh_name = $_POST['vehical_name'];
	    $var_mobile_number = $_POST['mobile_number'];
	    $var_address = $_POST['address'];
	    $var_fitness_upto_date = $_POST['fitness_upto_date'];
	    $var_lic_expiry = $_POST['lic_expiry'];
	    $var_insurance_expiry = $_POST['insurance_expiry'];
	    $var_puc_expiry = $_POST['puc_expiry'];
	    $var_permit_expiry = $_POST['permit_expiry'];
	    $var_other_1 = $_POST['other_1'];
	    $var_other_2 = $_POST['other_2'];
	//$actual_image_name = "-";
	
	
	
	
	$path = "vehical_images/";
		$valid_formats= array("jpg","png","gif","bmp","JPG","PNG","GIF","BMP","JPEG","jpeg");
		
		function generateRandomString($length = 15)
		{
			$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
			$charactersLength = strlen($characters);
			$randomString = '';
			for($i=0;$i<$length;$i++)
			{
				$randomString .=$characters[rand(0,$charactersLength - 1)];
			}
			return $randomString;
		}
		if(isset($_POST) and $_SERVER['REQUEST_METHOD'] == "POST")
		{
			$name    = $_FILES['upload_file']['name'];
			$size    = $_FILES['upload_file']['size'];
			if(strlen($name))
			{
				list($txt,$ext)= explode (".",$name);
				if(in_array($ext,$valid_formats))
				{
					if($_FILES['upload_file']['size']< 10485760)	//10mb file size
					{
						$files = array();
						$current_random_no = generateRandomString();
						//abcdfrhfj5
						$actual_image_name = $current_random_no.".".strtolower($ext);
						$tmp = $_FILES['upload_file']['tmp_name'];
						if(move_uploaded_file($tmp,$path.$actual_image_name))
						{
							$success_msg = 1;
						}
						else
						{
							$error_message = "failed";
						}
					}
						
					else
					{
						
						$error_message = "file size exceeded";
					}
				}
				else
				{
					$error_message = "Invalid file formate.";
				}
				
				
			}
			else{
				
				//echo "No File selected";
			}
		}
	 echo 7777;
		
	$db-> vehical_entry($var_veh_no,$var_veh_name,$var_mobile_number,$var_address,$var_fitness_upto_date,$var_lic_expiry,$var_insurance_expiry,$var_puc_expiry,$var_permit_expiry,$var_other_1,$var_other_2,$actual_image_name);
		if($flag)
		{
			
			$flag = 1 ;
		}
		
	}
	
?>