Revonzy Mini Shell

<?php
	require_once("../lib/functions.php");
	$db = new login_function();
	$flag = 0;
	$e_date="";
	$success_msg = 0;
	$links   	   = "";
	$image_error 	= "";
	$images = "";
	if(!isset($_SESSION['current_login_admin']))
	{
		header("Location:index.php");
	}
	if(isset($_SESSION['current_login_admin']))
	{
		$email	=	$_SESSION['current_login_admin'];
	}
	if(isset($_GET['image']))
	{
		$r_image = $_GET['image'];
		$db->remove_advertise_image($r_image);
		unlink("../advertise-images/".$r_image);
		header("Location:top-advertise.php");
	}
	if(isset($_POST['add_btn']))
	{		
		$valid_formats = array("jpg","png","gif","bmp","jpeg","JPEG","JPG","BMP","PNG","GIF");
	
		if(isset($_POST) and $_SERVER['REQUEST_METHOD'] == "POST")
		{	
			$name 				= 	$_FILES['picture']['name'];
			$size 				= 	$_FILES['picture']['size'];

			if(strlen($name))
			{				
				list($txt, $ext) = explode(".", $name);
						
				if(in_array($ext,$valid_formats))
				{
					$files	=	array();

					function generateRandomString($length = 10) {
								$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
								$charactersLength = strlen($characters);
								$randomString = '';
								for ($i = 0; $i < $length; $i++) 
								{
									$randomString .= $characters[rand(0, $charactersLength - 1)];
								}
								return $randomString;
							}
							
							$current_random_string = generateRandomString();
							
							$advertise_picture = $current_random_string.".".strtolower($ext);						

							$tmp = $_FILES['picture']['tmp_name'];
							
							$img_Dir = "../advertise-images/";
							
							if(!file_exists($img_Dir))
							{
								mkdir($img_Dir);
							}
							
							if(move_uploaded_file($tmp,$img_Dir.$advertise_picture))
							{
								
							}
							else
							{
								$image_error	=	"failed" ;
								$flag				=	1;
							}	
						}
						else
						{
							$image_error	= "Invalid file format";
							$flag				=	1;	
						}	
					}	
					else
					{
						$flag	=	1;
					}
			}
		if($flag == 0)
		{
			if($db->top_advertise($advertise_picture))
			{
				$success_msg = 1 ;
				$links 		= "";
				
			}
		}
	}
	$report_details = $db->get_all_top_advertise();
	if(!empty($report_details))
	{
		$c1 =0;
		$id				=	$report_details[$c1][0];
		$images			=	$report_details[$c1][1];
	}
?>
<?php
	require_once('header.php');
?>

        <div id="page-wrapper">
            <div class="row">
                <div class="col-lg-12">
                    <h1 class="page-header"> Top Side Advertisement </h1>
					<?php
					if($success_msg == 1)
					{
					?>
					<div class="alert alert-success">
						Information Updated Successfully.
					</div>
					<?php
					}
					?>
					
					
					
                </div>
                
            </div>
            
            <div class="row">
                <div class="col-lg-12">
                    <div class="panel panel-default">
                        <div class="panel-heading">
                            Top Side Advertisement
                        </div>
                        <div class="panel-body">
                            <div class="row">
                                <div class="col-lg-6">
                                    <form role="form" method="post" enctype="multipart/form-data">
										<div class="form-group">
                                            <label>Images</label><br /><br />
											<center><?php
												if($images != "")
												{
											?>	
											<a href="/advertise-images/<?php echo $images; ?>" target="_balnk"><img src="/advertise-images/<?php echo $images; ?>" height="90" width="90"></a><br /><br />
											<a href="top-advertise.php?image=<?php echo $images; ?>"> Remove Image </a>
											<?php
												}
												else
												{
												?>
												<img src="/images/no_image_available.png" height="90" width="90">
												<?php
												}
												?>
											<br /><br />
                                            <input class="form-control" name="picture" type="file" required></center>
											<span style="color:red;"><?php echo $image_error; ?></span> 
										</div>
										
											<button type="submit" class="btn btn-success" name="add_btn">Update Images</button>	<br /><br />
                                    </form>
                                </div>
								
                                
                                   
                               
                                
                            </div>
                           
                        </div>
                        
                    </div>
					   
                               
                                
                            </div>
                    
                </div>
              
            </div>
            
        </div>
       

    </div>
    

</body>

</html>