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Found 40 results

  1. The var_dump of the $cart_items array is supposed to show an array of $cart_items with the quantities added together for the same id but it doesn't even show an array, it just shows one value. session_start(); $cart_items = $_SESSION["cart_items"]; if ( $cart_items == null ) { $cart_items = array(); } if ( isset($_REQUEST["element_id"]) ) { $id = $_REQUEST["element_id"]; } if ( isset($_REQUEST["quantity"]) ) { $quantity = $_REQUEST["quantity"]; } if ( isset($id) && isset($quantity) ) { if (isset($cart_items[$id])) { $cart_items[$id] += $quantity; } else { $cart_items[$id] = $quantity; } } var_dump($cart_items);
  2. Been learning about php Frameworks, so i decided to learn from one that creates a MVC framework from scratch. I was looking at Dynamic Html.. something like a form object helper. They generate the html on the server-side. How does this reusable code come into play with MVC "View"'s. I might be wording the above badly, but am a bit lost
  3. saphirefsnb80

    SQL and PHP

    I've been studying SQL and PHP, but something isn't clicking in my brain about how to use then together. Could someone explain the connection and formatting PHP code with SQL queries or refer me to a tutorial please?
  4. BhoomikaDua

    CMS Project doubt

    In video 28, when we create a cms object, inside the constructor we declare:- global $FP; $this->FP= &$FP; the explanation being we can directly access the global $FP object directly and won't have to use a copy Doubt 1: throughout earlier project we have used copies and never used &(reference) so why was it essential in this case? Doubt 2: What is the difference in using a copy ($this->FP=$FP) and an original? Shouldn't they work similarly as in case of $this->FP=$FP, we are still referencing to the same object. Doubt 3: How to know when to use a the reference object?
  5. Hi, I'm currently doing the shopping cart tutorial in studioweb projects. Minor errors appear whenever I add items to the cart and i'm using php 7.2.10. I'll add the screenshot below. I've tried to solve it but the errors won't go away.
  6. Hey, I just completed the Form Validation Project on Studioweb and I would really appreciate help regarding my doubts: 1. If we are enabling Server side validation as well as client side validation, and javascript is on, meaning validate plugin works so does the server side validation automatically turns off? in the tutorials and through my testing, its clear that PHP validation doesn't work when Validate plugin but why? Shouldn't both of them working at the same time? 2. Why do we need sessions in PHP if we can create and use associative arrays like $form['name'], $error['name'] etc. and then use them among different PHP pages? Thank you
  7. Randip

    PHP Web

    How could I find a reliable and affordable PHP web Development company.
  8. Hey guys and gals, before I ask, I do want to point out that PHP and JS seems very AWESOME to me and I really want to learn it. LIKE REALLY BAD. I am willing to do whatever I can to learn what I need to learn! So I just finished the 3rd project. Which is PHP Tag Cloud. And I am still having some trouble understanding what's going on within the code. For example, I am understanding the concepts of a 'loop' or 'if' and 'else', and 'while.' I get what they are doing. But, when it comes to the code itself(syntax), I am still pretty lost. In this example below, I am totally lost as far as the syntax, but I understand what we are trying to achieve. (this is a snippet of code from the downloaded zip file, not from my version of code) function get_tags() { $this->tags = array(); $this->largest = 0; // get tag id, tag name and the number of times the tag has been used $result = $this->mysqli->query("SELECT posts_to_tags.tag_id, tags.name, COUNT(posts_to_tags.tag_id) AS total FROM tags, posts_to_tags WHERE posts_to_tags.tag_id = tags.id GROUP BY posts_to_tags.tag_id"); if ($result->num_rows > 0) { while ($row = $result->fetch_object()) { // figure out which tag has been used the most often. However many times that tag was // used will be placed within $this->largest for later use if ($row->total > $this->largest) { $this->largest = $row->total; } // add tag to array $this->tags[] = array('id' => $row->tag_id, 'name' => $row->name, 'total' => $row->total); } // sort tags usort($this->tags, array('tagcloud_model', 'compare_names')); } else { // if there are no results to display $this->tags = FALSE; } } // used by the usort function within get_tags() above function compare_names($a, $b) { return strcmp($a['name'], $b['name']); } I should mention I have only been learning PHP for few days all together, only from Stef's course and these projects. Any tips, advice, or ideas on how to grasp it better?(obviously I am going to continue my learning process, videos, tutorials.) I just want to see if maybe I can understand these projects a bit better as I am learning them. Do you think I should continue the projects and trust the process as I go, or take a detour and try and understand some things more before I finish the projects? THANK YOU FOR ANY RESPONSES.
  9. I feel like an idiot. I put the class php files in the C:\MAMP\htdocs. When I show them in crome I see all the code. I do not know what I am doing wrong.
  10. Hello, After following along and successfully completing Ben's tutorial of the Online Shopping Cart, I figured I would try and make my own. The first major problem I am having is being able to display my products from my database in my index.php page. The goal is to actually see the images of each product displayed in index.php (like in the tutorial). This would then enable me to add my products to the cart.php page. I've checked the database connection and it does exist. My guess would be that I am using the wrong syntax to display my products in the "fetch_all_products()" method. *** M_PRODUCTS.PHP *** <?php class Products { private $Conn; private $db_table = "toys"; function __construct() { // here we're making sure that the connection from $conn in "init.php" is transferred // into our own private $conn property for usage in this object global $Conn; $this->Conn = $Conn; } // fetches and displays all products from db public function fetch_all_products($id = NULL) { if ($id = NULL) { $data = "<li>"; if ($result = $this->conn->query("SELECT * FROM " . $this->db_table . " ORDER BY name")) { if ($result->num_rows > 0) { while ($row = $result->fetch_array()) { $data .= array( "id" => $row["product_id"], "name" => $row["name"], "price" => $row["price"], "image" => $row["image"] ); } $data .= "</li>"; return $data; } else { return "<h1>Oops... Something went wrong!</h1>"; } } } } } *** INIT.PHP *** <?php // db connection $host = "localhost"; $user = "root"; $pass = "root"; $db = "cart"; $Conn = new mysqli($host, $user, $pass, $db); // error reporting ini_set("display_errors", 1); mysqli_report(MYSQLI_REPORT_ERROR); // constants define("shop_name", "Tremendous Toys"); define("main_path", "localhost/web_apps/shopping_cart/"); define("image_path", "localhost/web_apps/shopping_cart/images/"); // includes include("models/m_shopping_cart.php"); include("models/m_products.php"); // object integrations $Shopping_Cart = new Shopping_Cart(); $Products = new Products(); // session initialisation session_start(); *** INDEX.PHP *** <?php include("init.php") ?> <link rel="stylesheet" href="visual/style.css" type="text/css"> <body> <div id="whitespace"> <h1><?php echo shop_name ?></h1> <?php $Products->fetch_all_products(); ?> </div> </body>
  11. Rubinelezi

    What should i do next?

    Hello! I just finished studioWeb JavaScript course and so far its been a great experience, really good course and easy to follow but i dont feel ready to jump to PHP , i feel like i need to learn more JavaScript what you suggest me to do, i want to learn more JS but I don't know exactly what to learn , should i learn more vanilla JS or start learning a framework lile vue or react. Thanks!
  12. Guest

    PHP Login System

    So, I have followed the instructions to a 'T,' yet I get a notice after I update the password. I thought I might be missing something from the videos, so I cut what I typed out and copied and pasted the source code files for the video section in it, but the exact same notice rendered in the browser. Any idea what's up with the notice? Does it have to do with deprecated code from previous versions, since Ben's browser was not rendering the same notice? else { // insert into database if ($stmt = $mysqli->prepare("UPDATE members SET password = ? WHERE id = ?")) { $stmt->bind_param("ss", md5($input['pass'] . $config['salt']), $_SESSION['id']); $stmt->execute(); $stmt->close(); // add alert and clear form values $error['alert'] = 'Password updated successfully!'; $input['current_pass'] = ''; $input['pass'] = ''; $input['pass2'] = ''; // show form include('views/v_password.php'); } else { echo "ERROR: Could not prepare MySQLi statement."; } }
  13. Biske94

    Programing term

    What does mean that variable is set or not set? (in PHP or general) Does that means: // no var declared $var; $var = 'Some fancy string'; $var = ""; //(empty string) I dont know all fancy terms, but I do know when variable is defined, declared and all that, but I dont know what variable is set means. Thanks in advance, nerdz!
  14. fana4

    booking system

    Hi there I've just started a fresh website for a non-profit organisation (meaning I won't get paid), so my options are: doing it as fast as possible, with minimum costs, standard interface, easy maintenance, strong community support. Therefore, being pragmatic, I've chosen WordPress (but i struggled finding out an appropriate free plugin... so I need to code it: PHP + mysqli). Now, this npo asked me for me a simple booking system for their training sessions. The business rules are: 1) several sessions available: A, B, C and D 2) A B C and D happen several times in a week 3) each user can book all 4, but can only book 1x (for the each session) 4) limit of seats per session: 20 5) total users : 100 (some will be left out, as soon as limit has been reached). 6) priority : FIFE (first in , first ENROLLED) 4) no payments involved My question is: which "tools" would you advise me? a ) create a new page OUT of WordPress with PHP? + mysqli? b ) create a new page OUT of WordPress with JAVASCRIPT? c ) create a new page WITH of WordPress with existing PLUGIN? nope, I couldn't find any suitable! d ) any other suggestion? Having done my research, many suggestions and recommendations show up...but I'd like your opinion according to your own experience. Txs
  15. Hi Thanks for the great tutorial! In medias res - just the way I like it. I thought I'd post questions as they come up, for a starter here's this: "Another convention is that getter and setter names should match the property names" Is this really just a convention or the class would not work at all otherwise? In other words do I need "var $name;" in order to set (and get) the value of "$this->name"?
  16. Aleksey

    Connecting MySQL with PHP

    A question about MySQL beginners course, part of connecting mysql with php, the video was very quickly and i didnt understand well. 1) Is there any simple way to connect a user to a database without such apps such cPanel? (from MyAdmin) 2)You told - "I am just using cPanel to connect a user with a database". Is there some free cPanel alternative that would work good on both mac and windows operating systems? For example i found some alternatives but on the download page i didnt see macos supported.
  17. I just started Beginners PHP course, when i use echo to display the result, it shows nothing. When i open beginners course file with forms it doesnt display echo on the screen as well. Can someone help me solve this problem?
  18. lgc93

    PHP course on Ubuntu

    Hi everyone, I'm currently on Chapter 4 of the PHP course and I'm having problems following up everything since I'm using ubuntu linux instead of a mac or windows pc. As a result, I can't install MAMP and I've had to try a couple of alternatives (LAMP and XAMPP) but neither seem to be similar enough to the MAMP that Stef uses in his videos (LAMP doesn't seem to have a user interface at all and XAMPP doesn't have a simple user friendly UI like MAMP does, which allows you to search files , like Stef does in lesson 2 chapt. 4 in order to find php.ini). Is there a better MAMP alternative for ubuntu? Also, when I search my computer, I have 3 different php.ini files in the following directories: /opt/lampp/etc /etc/php/7.0/apache2 /etc/php/7.0/cli Which one of the three am I meant to modify so that I can enable error messages? All of them have restricted writing permissions ("You are not the owner so you cannot change these permissions"). Any advice will be appreciated. Thanks in advance.
  19. Hi people! Since I couldnt get answers from Stackoverflow I desiced to ask you. Can someone explain how does these 2 functions work: class_exists() spl_autoload_register() Class exist function if(class_exists('User')){ echo "It does exists"; } class User { /* Some code here */ } // the output of file is "It does exists" So how does this function works? Scans whole file? Whole directory? I mean its called before I defined class. Spl autoload register function include 'functions.php'; // <- file where is the function class_exist('User') and spl_autoload_register() include 'db_config.php'; include 'database.php'; include 'user.php'; // <- Here is the class (User) So how does this function work? Its before any of those files that are included, and still it does it work? Does it scans whole directory where it is or what? I am really confused. Thanks peeps!
  20. Biske94

    Whats the difference

    Hi i have encountered one quirk in PHP, and I was wandering if anyone can explain it to me. So writing this code gives me infinite loop public static function find_this_query($sql){ global $Database; $result_set = $Database->queryFunction($sql); $theObjectArray = array(); $var = $result_set->fetch_assoc(); // I put the whole array in $var while($row = $var){ // and then I put that here // some code here } return $theObjectArray; } Buuuut this doesnt public static function find_this_query($sql){ global $Database; $result_set = $Database->queryFunction($sql); $theObjectArray = array(); while($row = $result_set->fetch_assoc()){ // here I just put method and everything works fine // some code here } return $theObjectArray; } So I just wanna know why. Thanks nerdzzzz!
  21. PHP form --> convert to WP form Hi there, I have several (legacy) php forms I'd like to re-use in my wp site. No way I will retype them again... therefore I'm looking for a way to import them directly into wp. Would you recommend any plugin? I understand pasting the original php code into the text editor will save me a lot of time, but it won't be final, since a lot of validation has to be done, etc... Do you have any experience with importing php forms into wp with a kind of 1-click solution? WP's plugins repository is not obvious on this matter...or maybe I've just missed it. txs
  22. Biske94

    Isset function

    Okay this is a newbie question but I know how it works but I just want to know how. So this code for example: if(isset($_POST['submit'])){ // do some stuff } else { // do some else stuff } This if statement will only do its code block if submit button is clicked or in nerds language if $_POST['submit'] is set. So thats means that value of that submit button is NULL before clicking, but when we click that submit button we are giving it a value? For example <input type="submit" name="submit" value="someAwesomeValue"> if I click this button its value will be 'someAwesomeValue' which means I set $_POST['submit'] value to 'someAwesomeValue' or in other words $_POST['submit'] = 'someAwesomeValue' Thanks!
  23. Php Buddies, I'm going to jump into building my own searchengine now. Starting off with the search box, then the index and then finally the crawler. Not too worried about the crawler. Gonna make use of cURL and implode,explode, etc. php functions. It's the Index that I quite can't get my head around. To build the Index, should I have the structure of the mysql tbl like this .... ? Option 1 Columns Url|Keywords Or, should I make the structure like this instead ..... ? Option 2 Columns Keyword|Urls Option 1a Example Columns Url | Keywords ----------------------------------------------------------------------- devshed.com | forum, programming, php Option 1b Example Columns Keyword | Urls -------------------------------------------------------------------------------------------------------------------------- forum | devshed.com, blackhat.com, warriorforum.com --------------------------------------------------------------------------------------------------------------------------- php | devshed.com/forum/php.htm, sitepoint.com/forum/php.php Option 2a Example Columns Urls | Keyword ----------------------------------------------------------------------- devshed.com | forum ----------------------------------------------------------------------- devshed.com | programming ----------------------------------------------------------------------- warriorforum.com | money ----------------------------------------------------------------------- warriorforum.com | forum Option 2b Example Columns Keywords | Urls -------------------------------------------------------------------------------------------------------------------------- forum | devshed.com/forum -------------------------------------------------------------------------------------------------------------------------- forum | blackhat.com/forum --------------------------------------------------------------------------------------------------------------------------- php | devshed.com/forum/php.htm --------------------------------------------------------------------------------------------------------------------------- php | sitepoint.com/forum/php.php Question 1: I have a feeling you won't like Option 1a or 1b atall. But, let's assume you need to do it out of them 2 options. Which one would you choose ? Question 2: I have a feeling you will like Option 2a or 2b. Which one would you choose ? Or, if you don't like any of them 2. Then, let's assume you need to do it out of them 2 options. Which one would you choose ? Question 3: If you don't like the structure of any of the 4 options then which structure would you yourself use or have used ? Best to show an example like I did. Btw, I know that, if I structure my tbl around the way I showed in my examples then users would only be able to make queires for a single keyword and not a phrase. But, dealing with phrases get complicated and so for the time being, as a beginner, let's concentrate one thing at a time. Concentrate on the very first basic of indexing a url. Thanks
  24. What is the difference between statements and functions? For instance why dont we type include('somefile.php') or echo('Hello World') ? Thanks!
  25. Biske94

    mysqli_fetch_assoc in while loop

    Hi people, I have one question about mysqli_fetch_assoc in a while loop. $query = "SELECT * FROM category "; $result = mysqli_query($connection, $query); while($row = mysqli_fetch_assoc($result)) { $cat_id = $row['cat_id']; $cat_title = $row['cat_title']; echo $cat_id . " " . $cat_title ."<br>"; } So, how does $row = mysql_fetch_assoc($result) works? So it loops one row at a time from $results and stores that information in $row until it there is no row to return? And this mysqli_fetch_assoc($result) in while loop iterations is this " array(some rows that it got from $result) "? $row = mysqli_fetch_assoc($result) is same as $row = array(all rows from $result that are gathered by mysqli_fetch_assoc) ? And that means $row is actually an array, and every time it loops the information is not overwriten by new instead it is added? Sorry if i confused you with such questions Thanks in advance!
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