[oop] Forum Topics

I have 2 files: apix.php and crud.php. I am trying to convert the fetched data from php to a jason print. The issue is that the function does not the results for me to parse in the next section of my code. The CRUD.php: class crud { private $db; function …

Hi guys, I wonder if you can help. As I've started as a programmer, I've been told I have to practice OO a bit more. I've done the theory, but I think I will have to take another look at it. , Above all though, I have to do exercises. …

Normally you can do this and pass the reference type by reference and the new keyword won't make the variables point to different objects: static void Main(string[] args) { Object origObj = new Object(); ExampleMethod(ref origObj); } void ExampleMethod(ref Object newObj) { //origObj will also reference the newly created object …

Here is what i have to do Create Class CSalary with private member variables string m_strProfession double m_dSalary Constructors:Default,Copy,Explicit Functions: 1/string GetProf(void),double GetSalary(void) 2/SetProf(const string val),SetSalary(const double val) 3/Output(ostream&) and Input(istram&) 4/Operators:<<,>>,=,==,<,double operator*(const CSalary&obj) Create Class CCalcCorr with private member variables: vector<CSalary>m_vCity1//data for city 1 vector<CSalary>m_vCity2//data for city 2 double …

First off, here is the code I will be referencing: package com.airamerica.dataConversion; import com.airamerica.Airports; import com.airamerica.Person; import com.airamerica.Products.Products; import com.airamerica.Products.Tickets; public class FindObject { public static Airports findAirport(String airportCode, Airports [] airportsArray){ Airports airport = null; for(int j = 0; j < airportsArray.length; j++) { if (airportCode.equals(airportsArray[j].getCode())){ airport = airportsArray[j]; …

Hi I am trying to create a update function. But it not updating in the database. Please help me to fix. **Test-2.php** $whereString = ''; $bind = NULL; if(isset($_POST['Submit'])) { if($_POST) { $SCYQ64UKID = $_GET['SCYQ64UKID']; $SCYQ64AVGP = $_POST['SCYQ64AVGP']*100; $searchFields = array('SCYQ64EMAL'=>$_POST['SCYQ64EMAL'],'SCYQ64EV01'=>$_POST['SCYQ64EV01'],'SCYQ64EV02'=>$_POST['SCYQ64EV02'],'SCYQ64EV03'=>$_POST['SCYQ64EV03'],'SCYQ64EV04'=>$_POST['SCYQ64EV04'],'SCYQ64EV05'=>$_POST['SCYQ64EV05'],'SCYQ64EV06'=>$_POST['SCYQ64EV06'],'SCUSER'=>$_POST['SCUSER'],'SCYQ64AVGP'=>$SCYQ64AVGP,'SCYQ64TZ'=>$_POST['SCYQ64TZ'],'SCJOBN'=>gethostname(),'SCPID'=>'SSWEB','SCUPMJ'=>$_POST['SCUPMJ'],'SCUPMT'=>$_POST['SCUPMT']); if($post = array_filter($_POST)) { if($fields = array_intersect_key($searchFields, $post)) { …

Hi I am trying to display count of a row using function with get values. Please help me to fix the issue **class** class Users { private $conn; private $db_name= "DATABASE"; public function __construct($db) { $this->conn = $db; } /*Join Two Tables with where condition and order by*/ public function …

I have created a function. if i provide correct username and password. i am getting a error message as **Sorry, that username / password is invalid !** can any one please help me to fix the issue. **login.php** <?php require 'include/init.php'; $general->logged_in_protect(); if(empty($_POST) === false) { $username = trim($_POST['username']); $password …

Hi I am trying to connection my database ODBC using function. I am getting an error **Connection error: could not find driver** **mycode is** <?php class Database{ // specify your own database credentials private $host = "servername"; private $db_name = "databsename.schemaname"; private $username = "username"; private $password = "password"; public …

Hi, Reading CodeIgnitier documentation I saw some statements having this form: $this->someword->somefunction(); and I don't know what is that. Is someword an multi-dimensional/associative array? I know that if I create an instance of a class I can access its properties and functions with a single -> operator or with :: …

Hi all, I've been working with PHP, using procedural methods, for several years now, and have begun to explore the object-oriented side of it. While it didn't take me long to understand the potential advantages that come with working in this manner, I'm still having some trouble wrapping my head …

Hello everyone. I am currently making some database connection modules in Python inb order to learn Python's approach to OOP and also to lear how to connect to databases via Python. I successfully made a package with modules for postgres, mysql, sqlite3, and MongoDB. The classes simply connect, disconnect and …

Greetings, I'm having problems with my output. Essentially I am just trying to print out any Cat who is over 3 years old and has Claws. But my output keeps printing out either nothing at all or the 3rd cat 3 times. I've struggled with this for hours trying to …

the problem I have here is: when I input an integer it works fine, but when i input any other thing, it doesn't give me a chance to input again when the loop iterates, it just keeps printing "error type the right thing" to the screen even though "cin var" …

I'm trying to write a boolean function that takes two Mytime objects, t1 and t2 as arguments, and returns True if the object falls inbetween the two times. This is a question from the How to Think Like a Computer Scientist book, and I need help. What I've gotten so …

please tell me in how many ways OBJECT ORIENTED PROGRAMMING is different from procedural programming in JAVA

I can't seem to get a response from my query method. I have a database connection from method ping_server and use mysqli as connector. Can anyone help me figure out why I cannot print results from mysqli_fetch_array. dbclass.php class db { private $connection; private $selectdb; private $lastQuery; private $config; function …

I'm trying to modify this code to take advantage of classes and some other oop features. However, I'm struggling with getting beyond the basics. This is the code that I started with which I am trying to change and make more class absed. import glob import os import sys print(os.getcwd()) …

Hi, I've got a class in PHP with an array of objects in it. I need to loop through these objects and call 2 methods on them but I'm not sure of the best approach. When dealing with arrays, if you use foreach, you can't seem to update the actual …

Hi guys, Tomorrow is my theory paper exam of C++ OOP and Data Strucutre. Paper will be based on 50% theory Q/A and 50% on coding implentaion. Can you give me some hints to prepare for this coming exam? PS. I have gone throw all lectures slides and course material, …

hlo all, i need to write a code in php oop for registration without using form and data directly goes in the database. i try to write the code for this. i show u that code and help me to correct that or by giving me another code. the database …

This started out as `I love PHP traits! I'm going to use them everywhere! ^_^` and now it has turned into a `Thought Exercise / Learning Experience >_<`. Consider the following example: trait TheErrorOfYourWays{ public function booboo(){ echo 'You had a booboo :('; } } trait SpectacularStuff1 { use TheErrorOfYourWays; …

Having just found 'traits' - see http://www.daniweb.com/web-development/php/threads/468928/php-trait-method-conflicts-trait-inheritance#post2043565 I was wondering whether they could be used to share a DB connection object across disparate classes, or would the old singleton or dependency injection methods still be the way to go? I'd value any views on this.

Hi All, I am trying to add insert/update and delete to an OOP singleton database connection using public functions like this, not sure if it is correct? example code public function insert($sql){ if($this->_execute= $this->_mysqli->_execute($sql)){ while ($row = $this->_execute->fetch_object()){ $this->_results[] = $row; } $this->_count = $this->_execute->num_rows; } return $this; } //page …

Hi All, I am trying to connect to a database OOP singleton method. I am getting an error "syntax error, unexpected 'function_construct'" and I unable to find the syntax error in the code. Any help with this would be appreciated. Thanks in advance David // Page: index.php <?php require_once 'classes/db.php'; …

please can you help me to solve this problem :>>> no develop a bookstore information system. The bookstore manages a collection of books it is selling, book orders, and customers who purchased from the store. A book store also has a counter that accepts cash from book sales. Each book …

I would like some help with my connect class.This class is created by me it is my way of thinking so i would like to know why this class dossent get my variables and connect proprely to mysql. the code <?php /** * Exp:Connect to database in oop style @params …

Hy I want to understand what is a better approach on problem solving point of view for a php project , a framework or the mvc pattern? I would like to add that I know that both principels are quite the same but with a minor diffrence that a framework …

I would like to know, why extending a built-in class in php is important. I mean let's take the PDO class for example. One can either work with using new PDO(); or class Foo extends PDO. to do the same task. I guess, maybe the only thing that makes sense …