I know that I can cast an associative array to object doing this:
$user = (object) $_POST["user"];
I have a class User that has method getName, getEmail etc.
If I do
$user = (object) $_POST["user"];
$user->getName();
It gives this error
Fatal error: Call to undefined method stdClass::getName()
Can I do something like this?
$user = (user) $_POST["user"];
Thank you
Not directly. What you could do is make a new user and set all the info in the constructor of your user class
Class User {
public $name;
public $otherData;
function __construct ($userdata) {
$name = $userdata['name'];
$otherData = $userdata['otherData'];
}
function GetName() {
return $name;
}
}
Then you could call it like this:
$user = new User($_POST["user"]);
You can use something like this
<?php
Class User{
protected $name;
public function setName($name){
$this->name = $name;
}
public function getName(){
return $this->name;
}
}
$arr = ["name"=>"Niklesh"];
$abc = new User;
$abc->setName($arr["name"]);
var_dump($abc);
var_dump($abc->getName());
?>
Demo : https://eval.in/765496
Related
Not: Its work just one time in loop. Its return this error for other time.
I have a usermodel.php in models. When i use it like
$this->load->model("Usermodel");
$user = $this->Usermodel->quer(1);
it throw "Message: Undefined property: CI_Loader::$Usermodel"
When i use
$this->load->model("Usermodel");
$user = new Usermodel();
it throw "Message: Cannot redeclare class Users"
user class has construct and desturct functions. I call it in Usermodel.php file. And usermodel has construct and destruct functions.
<?php
class User {
public function __construct(){
parent::__construct();
}
private $id;
private $email;
private $name;
private $profilPic;
private $topPic;
private $gender;
private $birthday;
private function setid($id){
$this->id = $id;
}
private function getid(){
return $this->id;
}
private function setemail($email){
$this->email = $email;
}
private function getemail(){
return $this->email;
}
private function setname($name){
$this->name = $name;
}
private function getname(){
return $this->name;
}
private function setprofilPic($profilPic){
$this->profilPic = $profilPic;
}
private function getprofilPic(){
return $this->profilPic;
}
private function settopPic($topPic){
$this->topPic = $topPic;
}
private function gettopPic(){
return $this->topPic;
}
private function setgender($gender){
$this->gender = $gender;
}
private function getgender(){
return $this->gender;
}
private function setbirthday($birthday){
$this->birthday= $birthday;
}
private function getbirhday(){
return $this->birthday;
}
public function __set($name, $value){
$functionname = 'set'.$name;
return $this->$functionname($value);
}
public function __get($name){
$functionname = 'get'.$name;
return $this->$functionname();
}
public function __destruct(){}
}
?>
This is usermodel
<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Usermodel extends CI_Model {
public function __construct(){
parent::__construct();
$this->load->view("Users.php");
$this->load->model("Dbmodel");
}
public function quer($id){
$uqcont = array("id" => $id);
$uiqcont = array("userID", $id);
$uq = $this->Dbmodel->control("user", $uqcont);
$uiq = $this->Dbmodel->control("userinfo", $uiqcont, $limit=1, 'userID');
$user = new Users();
if($uq->num_rows()==1){
$uq = $uq->result();
$user->id=$id;
$user->name=$uq[0]->name;
$user->email=$uq[0]->email;
$user->profilPic="girlprofil.png";
$user->topPic="arka.jpg";
}
if($uiq->num_rows()==1){
$uiq=$uiq->result();
if($uiq[0]->profilPic){
$user->profilPic = $uiq[0]->profilPic;
}
if($uiq[0]->topPic){
$user->topPic = $uiq[0]->topPic;
}
}
return $user;
}
public function __destruct(){}
}
?>
This is a part of my view.php
foreach($query->result() as $row){
$cont = array("id" => $row->userID);
$query = $this->Dbmodel->control("user", $cont);
$this->load->model("Usermodel");
$user = new Usermodel();
$user = $user->quer($row->userID);
$date = new datetime($row->date);
$date = $date->format("d.m.Y H:i:s");
//$query = $query->result();
//foreach($query as $qur){
echo '$user->name.'<br>'.$row->comment;
//}
//unset($user);
}
Please look to my error and help me to solve it.
the class User is being declared more than once, probably in the loop you were referring to.
is this line in the loop?
$this->load->model("Usermodel");
if so try moving it out of the loop.
The error is due to loading the model several times in the foreach loop. Load it only once then create instances of the class as many times as you wish
$this->load->model("usermodel");
foreach($query->result() as $row){
$cont = array("id" => $row->userID);
$query = $this->Dbmodel->control("user", $cont);
$user = new Usermodel();
$user = $user->quer($row->userID);
$date = new datetime($row->date);
$date = $date->format("d.m.Y H:i:s");
}
Then consider using small caps in your load->model().
I advise loading the data in the controller then passing the data to the view. Let the controller have most of the logic.For example in the controller
$this->load->model('usermodel');
$data['users'] = $this->usermodel->quer($id)->result();
$this->load->view('users_view', $data);
In the view its as simple as
foreach ($users as $user)
{
//logic e.g. echo $user->name;
}
$this->load->model("X") is doing something like following;
Check models directory if X.php exists and if it exists
it creates the class with the given name in our case "X", [ $this->X = new X(); ]
you can also pass the alternative name to the load->model method like
$this->load->model("X","my_x_model"), in that case the loader module will create
$this->my_x_model = new X();
It was just to give some information about "what happens when you trying to load a model"
You're getting an Undefined property because
$this->load->model("usermodel");
has to be in lowercase.
https://www.codeigniter.com/userguide3/general/models.html#loading-a-model
I change this "class Users" to "class users extends CI_Model" and i move "$this->load->model("usermodel") on over of loop. Then the problem is solved. Thank you for help.
I need to create a new attribute in the model and something weird is happening:
this code, works fine:
class Person extends CActiveRecord {
public $test = "xxx";
public function getRandomToken() {
$temp = $this->test;
return $temp;
}
this code, does not:
class Person extends CActiveRecord {
public $test = md5(uniqid(rand(), true));
public function getRandomToken() {
$temp = $this->test;
return $temp;
}
why?
I get a blank page with the second code, with no errors.
I will need to use the random token from create view-page and I'm doing it in this way:
echo $model->getRandomToken();
Thank you for your support!
You cannot assign a function result as value. It must be a constant. Assign the function value in the constructor
public $test = '';
function __construct() {
$this->test = md5(uniqid(rand(), true));
}
If you do not want to overwrite the contructor you can use this:
class Person extends CActiveRecord {
public $test = null;
public function getRandomToken() {
if ($this->test == null){
$this->test = md5(uniqid(rand(), true));
}
$temp = $this->test;
return $temp;
}
I'm new to OOP and very confused about it. A class that collected user info from database based on the ID passed though:
class user {
public $profile_data;
public function __construct($profile_user_id) {
$this->profile_data = user_data($profile_user_id, 'id', 'username', 'password', 'email', 'admin');
}
}
$profile_data[] = new user(1);
How do I get all the variables in the array? How do I echo out the username for example?
Simply try this.
class user {
public $profile_data;
public function __construct($profile_user_id) {
$this->profile_data = user_data($profile_user_id, 'id', 'username', 'password', 'email', 'admin');
}
}
$userObj = new user(1);
$profileData = $userObj->profile_data;
echo $profileData['username'];
Assuming your user_data function is returning an associative array of data, you should be able to access the fields using as such:
$profile = new user(1);
echo $profile->profile_data['username'];
As in Lighthart's example, it would be good practice to create private variables, with functions to access them.
Another option would be to implement the ArrayAccess interface (http://php.net/manual/en/class.arrayaccess.php) Using this interface, you would be able to use your object similarly to how you use an array. That is, you could use:
echo $user['username'];
As a starting point, you could try something like:
class user implements ArrayAccess {
private $data;
public function __construct($profile_user_id) {
$this->data= user_data($profile_user_id, 'id', 'username', 'password', 'email', 'admin');
}
public function offsetSet($offset, $value) {
// Do nothing, assuming non mutable data - or throw an exception if you want
}
public function offsetExists($offset) {
return isset($this->data[$offset]);
}
public function offsetUnset($offset) {
// Do nothing, assuming non mutable data - or throw an exception if you want
}
public function offsetGet($offset) {
return isset($this->data[$offset]) ? $this->data[$offset] : null;
}
}
The example you have given probably won't work for what you are trying to accomplish. It is not clear what function userdata does. Revised:
class User {
private $id;
private $username;
private $password;
private $email;
private $admin;
public function __construct($id, $username, $password, $email, $admin) {
$profileData = user_data($profile_user_id
,'id'
,'username'
,'password'
,'email'
,'admin');
$this->id = $profileData ['id'];
$this->username = $profileData ['username'];
$this->password = $profileData ['password'];
$this->email = $profileData ['email'];
$this->admin = $profileData ['admin'];
}
public function getId(){ return $this->id; }
public function getUsername(){ return $this->username; }
public function getEmail(){ return $this->email; }
public function getAdmin(){ return $this->admin; }
public function setAdmin($admin){ $this->admin = $admin; }
}
The variables are set private. Only the user object should have access to the data directly. However, other objects might want to retrieve the data, which is why there are 4 public get functions. getPassword was omitted because you probably don't want that one publicly available. Also, it is concievable you might set a new admin, so a public setter function was added as well. you would instance the new user (that is, take the class and make a real example of it) thusly:
$user1 = new User(1);
And during usage you would echo these variables by:
echo $user1->getUsername();
Please accept my apologies for not directly answering your question, but that example is headed for trouble.
Assume the connection to the database and all references to tables and cells is correct... how could I get something like this working?
class User
{
private $_display;
private $_email;
public function __construct($username)
{
$fetch_user = mysql_query("SELECT * FROM `registered_users` WHERE `user_name`='$username'");
$fetch_user = mysql_fetch_array($fetch_user);
$this->_display = $fetch_user['user_display'];
$this->_email = $fetch_user['user_email'];
}
}
$person1 = new User('username');
echo "Information: " . print_r($person1, TRUE);
the problem is it returns nothing. Doesn't thrown an error or anything when debugged. Is it viable method though? :S
Here is roughly what I would do:
<?php
class User{
private $username;
private $data;
public function __construct($username){
$this->username = $username;
if($this->valid_username()){
$this->load();
}
}
private function load(){
// Let's pretend you have a global $db object.
global $db;
$this->data = $db->query('SELECT * FROM registered_users WHERE user_name=:username', array(':username'=>$this->username))->execute()->fetchAll();
}
public function save(){
// Save $this->data here.
}
/**
* PHP Magic Getter
*/
public function __get($var){
return $this->data[$var];
}
/**
* PHP Magic Setter
*/
public function __set($var, $val){
$this->data[$var] = $val;
}
private function valid_username(){
//check $this->username for validness.
}
// This lets you use the object as a string.
public function __toString(){
return $this->data['user_name'];
}
}
How to use:
<?php
$user = new User('donutdan');
echo $user->name; //will echo 'dan'
$user->name = 'bob';
$user->save(); // will save 'bob' to the database
I'm having problems with accessing variables from my classes...
class getuser {
public function __construct($id) {
$userquery = "SELECT * FROM users WHERE id = ".$id."";
$userresult = mysql_query($userquery);
$this->user = array();
$idx = 0;
while($user = mysql_fetch_object($userresult)){
$this->user[$idx] = $user;
++$idx;
}
}
}
I'm setting this class in a global 'classes' file, and later on I pass through a user id into the following script:
$u = new getuser($userid);
foreach($u->user as $user){
echo $user->username;
}
I'm hoping that this will give me the name of the user but it's not, where am I going wrong?!
Thanks
please define your users member as public in your class like this
class getuser {
public $user = null;
//...
}
in order to access a class property, you have to declare it public or implement getters and setters (second solution is preferable)
class A {
public $foo;
//class methods
}
$a = new A();
$a->foo = 'whatever';
with getters and setters, one per property
class B {
private $foo2;
public function getFoo2() {
return $this->foo2;
}
public function setFoo2($value) {
$this->foo2 = $value;
}
}
$b = new B();
$b->setFoo2('whatever');
echo $b->getFoo2();
in your example:
class getuser {
private $user;
public function __construct($id) {
$userquery = "SELECT * FROM users WHERE id = ".$id."";
$userresult = mysql_query($userquery);
$this->user = array();
$idx = 0;
while($user = mysql_fetch_object($userresult)){
$this->user[$idx] = $user;
++$idx;
}
}
/* returns the property value */
public function getUser() {
return $this->user;
}
/* sets the property value */
public function setUser($value) {
$this->user = $value;
}
}
$u = new getuser($userid);
$users_list = $u->getUser();
foreach($users_list as $user) {
echo $user->username;
}