Codin2012

Thank for your answer it solved my problem.

I have a form to submit a email address and password. I get an undefined index error and if I try to use isset to fix the undefined index error I get the following error Cannot use isset() on the result of an expression (you can use "null !== expression" instead) in and I have tried to use the suggestions to solve the problem but than another error pops up. Here is my php code . All help greatly appreciated. if (isset($_POST['submit']=="Sign Up")) { if (!$_POST['email']) $error.="<br />Please enter your email"; else if (!filter_var($_POST['email'], FILTER_VALIDATE_EMAIL)) $error.="<br />Please enter a valid email"; if (!$_POST['password']) $error.="<br />Please enter your password"; and my html <form class="marginTop" method="post"> <div class="form-group"> <label for="email">Email Address</label> <input type="email" name="email" class="form-control" placeholder="Your Email" value="<?php echo addslashes($_POST['email']); ?>" /> </div> <div class="form-group"> <label for="password">Password</label> <input type="password" name="password" class="form-control" placeholder="Password" value="<?php echo addslashes($_POST['password']); ?>" /> </div> <input type="submit" name="submit" value="Sign Up" class="btn btn-success btn-lg marginTop"/> </form>

As you pointed out I did not test to see, whether $request actually has a 'controller' entry. so this is what I did to solve the problem public function __construct($request){ $this->request = $request; if (isset($request['controller'])) { if ($this->request['controller'] == ""){ $this->controller = 'home'; } else { $this->controller = $this->request['controller']; } if($this->request['action'] == ""){ $this->action = 'index'; } else { $this->action = $this->request['action']; } } }

Could you possibly give me an example of what you are suggesting? Thank you

Thank you for the suggestion I tried what you suggested and it was an empty array.

I am trying to build an OOP PHP following MVC formatt. I do not understand why these lines of code would give an undefined index error. public function __construct($request){ $this->request = $request; if($this->request['controller'] == ""){ $this->controller = 'home'; } else { $this->controller = $this->request['controller']; } if($this->request['action'] == ""){ $this->action = 'index'; } else { $this->action = $this->request['action']; } } It is my two if statements causing the errors. All help greatly appreciated.

What is the best way using OOP PHP to find the total quantity of a shopping cart. The customer can have more than one item per page to add to the cart. So whenever the quantity of the cart changes I want the total to change. So I have a method in my cart class that will calculate the total quantity. Here is the method from my cart class. public function get_total_qty($total_qty = '') { $total_qty = 0; if (isset($_SESSION['cart'])) { foreach($_SESSION['cart'] as $qty) { $total_qty = $total_qty + $qty; } } return $total_qty; echo $total_qty; die(); } And here is the code on my index page $total_qty = new Cart(); $total_qty->get_total_qty($cart_itm["qty"]); cart_itm["qty] is the variable used to receive the quantity when an item is added to the cart.

I am trying to get the total quantity of products ordered and added to my shopping cart. I am trying to do this in OOP. I have a class called cart and I have a method called get_total_qty. So every time the cart gets updated and the quantity changes I need my total quantity to change also. Here is my class class Cart { public function __construct() { }

Thank you for responding but to answer your question it does not add the code later. How is the mysql query incorrect.

I have been going through a couple of PHP OOP pagination tutorials I followed several and decided to use this one but it just does not work. I am sure I am connected to the database but it will not pull the information from the database. I am just going to include the index and pagination class. Here is the index.php page <?php // Initialize both configuration and pagination file one by one include_once("config.php"); include_once("pagination.php"); //get the page number using request method $myoffset = $_REQUEST["page"]; // check whether the requested page variable is empty. If empty start with one $page = !empty($myoffset) ? (int)$myoffset:1; //Assign per page results $per_page = 5; //Assign total count of records am manually entered value here. //If you receive data from database see the next code $total_count = 25; //Query For getting total count $sql = "SELECT COUNT(*) FROM City"; $totalcount = mysqli_query($sql); echo "total count is $totalcount"; //Query For Fetching Results as per Pagination count from Database $mysql = "SELECT * FROM City ORDER by id DESC LIMIT {$per_page} OFFSET {$myoffset}"; //Assign all value to populate pagination with oops $pagination = new Pagination($page,$per_page,$total_count); // Store all pagination values in this variable called $res $res = ""; //Checking total page, if total page not more than one than hide pagination if($pagination->total_pages() > 1) { //check if it has previous page if($pagination->has_previous_page()) { $res .= '<a href="index.php?page='.$pagination->previous_page().'"> « Previous </a>'; } //populating looping values to show navigation for($i=$page;$i<=$pagination->total_pages();$i++) { $res .= '<a href="index.php?page='.$i.'" class="active"> '.$i.'</a>'; } //check if it has next page if($pagination->has_next_page()) { $res .= '<a href="index.php?page='.$pagination->next_page().'">Next »</a>'; } } ?> <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Pagination</title> <!-- Adding style for pagination --> <style> .paginationblock{ width:350px; height:auto; margin:0 auto; margin-top:300px } .paginationblock a{ width:auto; height:auto; float:left; padding:10px 15px 10px 15px; text-decoration:none; font-family: Helvetica, Arial, 'lucida grande',tahoma,verdana,arial,sans-serif; font-size:16px; background-color:#222222; color:#ffffff; margin-right:3px; } .paginationblock a:hover{ background-color:#09F; } </style> </head> <body> <!-- Initialize pagination script --> <div class="paginationblock"> <?php echo $res; ?> </div> </body> </html> now my pagination.php page <?php class Pagination { public $current_page; public $per_page; public $total_count; public function __construct($page=1,$per_page=0,$total_count=0) { $this->current_page = (int)$page; $this->per_page = (int)$per_page; $this->total_count = (int)$total_count; } public function offset(){ return ($this->current_page - 1) * $this->per_page ; } public function total_pages(){ return ceil($this->total_count/$this->per_page); } public function previous_page(){ return $this->current_page-1; } public function next_page(){ return $this->current_page+1; } public function has_previous_page(){ return $this->previous_page() >= 1 ? true:false; } public function has_next_page(){ return $this->next_page() <= $this->total_pages() ? true:false; } } // Declaring Object here $pagination = new Pagination(); ?> All help greatly appreciated.

Trying to grow in PHP so I thought this would be a great place to learn and share.