so i have the following structure for what i'm trying to target but what i'm getting is the Fatal error class MainController not found , i'm new to autoload and namespace thing (but getting into them fast) i just need to know why this is happening , hope you guys have bit explained situation for me? i did saw few of answer around stackoverflow but nuthing helped, i know i'm doing something really wrong, but thats how i will learn :). structure:
composer.json
src/controllers/MainController.php
the following is my autoload inside composer.json file:
"autoload": {
"psr-4": {
"controllers\\": "src/controllers/"
}
}
and this is how my MainController.php looks alike :
namespace MainController;
class MainController{
function test($name){
echo 'holaaaa'.$name;
}
}
controller call inside: app/loads/loadController.php :::
use MainController;
$MainController = new MainController();
more info on vendor/autoload.php
it's included inside : index.php and inside index.php i have included mainapp.php and inside mainapp.php i have included loadcontroller.php vich calls the controller
structure screenshot:
Okay, in your Composer file you say the namespace is controllers. In your PHP file you say the namespace is MainController. They need to be the same for the autoloading to work.
If we are to go by your Composer file then the PHP should look like this:
namespace controllers;
class MainController {}
And the class should be called like this:
$MainController = new \controllers\MainController;
Or like this:
use controllers\MainController;
$MainController = new MainController;
Or, if you want a nicer-looking class name:
use controllers\MainController as Controller;
$MainController = new Controller;
In my case I only managed to correct it after deleting my folder from the composer (vendor) and rerunning the command composer dump-autoload
Related
I am new with this namespace thing.
I have 2 classes(separate files) in my base directory, say class1.php and class2.php inside a directory src/.
class1.php
namespace \src\utility\Timer;
class Timer{
public static function somefunction(){
}
}
class2.php
namespace \src\utility\Verification;
use Timer;
class Verification{
Timer::somefunction();
}
When I execute class2.php, i get the Fatal error that
PHP Fatal error: Class 'Timer' not found in path/to/class2.php at
line ***
I read somewhere on SO, that I need to create Autoloaders for this. If so, how do I approach into creating one, and if not, then what else is the issue?
UPDATE
I created an Autoloader which will require all the required files on top of my php script.
So, now the class2.php would end up like this.
namespace \src\utility\Verification;
require '/path/to/class1.php'
use Timer;
//or use src\utility\Timer ... both doesn't work.
class Verification{
Timer::somefunction();
}
This also does not work, and it shows that class not found. But, if I remove all the namespaces, and use's. Everything works fine.
We can solve the namespace problem in two ways
1) We can just use namespace and require
2) We can use Composer and work with the autoloading!
The First Way (Namespace and require) way
Class1.php (Timer Class)
namespace Utility;
class Timer
{
public static function {}
}
Class2.php (Verification Class)
namespace Utility;
require "Class1.php";
//Some interesting points to note down!
//We are not using the keyword "use"
//We need to use the same namespace which is "Utility"
//Therefore, both Class1.php and Class2.php has "namespace Utility"
//Require is usually the file path!
//We do not mention the class name in the require " ";
//What if the Class1.php file is in another folder?
//Ex:"src/utility/Stopwatch/Class1.php"
//Then the require will be "Stopwatch/Class1.php"
//Your namespace would be still "namespace Utility;" for Class1.php
class Verification
{
Timer::somefunction();
}
The Second Way (Using Composer and the autoloading way)
Make composer.json file. According to your example "src/Utility"
We need to create a composer.json file before the src folder. Example: In a folder called myApp you will have composer.json file and a src folder.
{
"autoload": {
"psr-4": {
"Utility\\":"src/utility/"
}
}
}
Now go to that folder open your terminal in the folder location where there is composer.json file. Now type in the terminal!
composer dump-autoload
This will create a vendor folder. Therefore if you have a folder named "MyApp"
you will see vendor folder, src folder and a composer.json file
Timer.php(Timer Class)
namespace Utility;
class Timer
{
public static function somefunction(){}
}
Verification.php (Verification Class)
namespace Utility;
require "../../vendor/autoload.php";
use Utility\Timer;
class Verification
{
Timer::somefunction();
}
This method is more powerful when you have a complex folder structure!!
You are going to need to implement an autoloader, as you have already read about it in SO.
You could check the autoloading standard PSR-4 at http://www.php-fig.org/psr/psr-4/ and you can see a sample implementation of PSR-4 autoloading and an example class implementation to handle multiple namespaces here https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-4-autoloader-examples.md.
I just started using CakePHP 3. I'm trying to get up and running but doing the simplest of things is proving to be a headache.
I have a class, MySimpleClass, in src/App/MySimpleClass.php
<?php
namespace MyApp\MyNamespace;
class MySimpleClass {
public function aSimpleFunction() {
return 1;
}
}
And in my controller:
<?php
namespace App\Controller;
use Cake\Controller\Controller;
use MyApp\MyNamespace\MySimpleClass;
class MyFirstController extends Controller {
public function display() {
$mySimpleClass = new MySimpleClass();
echo $mySimpleClass->aSimpleFunction();
}
}
But this always gives me:
Error in: ROOT/src/Controller/TestController.php, line 10 Class 'MyApp\MyNamespace\MySimpleClass' not found
I use bin/cake server to run the HTTP server
I added App::className('MyApp\MyNamespace\MySimpleClass'); to bootstrap.php to see if that'd make a difference but it doesn't.
I've run composer dump-autoload on several occasions.
I tried putting MySimpleClass into global namespace but it still gave me the error.
PHPStorm isn't giving me any syntax or naming errors.
You should place your controllers in:
src/Controller
and use:
namespace App\Controller;
Nevermind, I finally found the solution...
I just had to add src to the classmap in composer.json:
"autoload": {
"classmap": [
"src"
],
...,
}
Edit:
Instead of abusing classmap, I just moved my class files to a directory outside of src
If your class is in the file src/App/MySimpleClass.php, the namespace has to be App\App. The first App refers to the root namespace of every CakePHP 3.x application, the second App refers to the subdirectory within the src directory you put your class file into.
If the namespace of the class should be App\MyNamespace, your classfile has to be located in src/MyNamespace.
Also: according to the error message you quoted, your MyFirstController is in a file called TestController.php. Instead, it should be MyFirstController.php. I recommend giving https://book.cakephp.org/3.0/en/intro/conventions.html#file-and-class-name-conventions a read regarding this topic.
Hi there,
I'm fairly new in working with composer, but I'm experiencing issues. After some stackoverflow searches I tried some of te solutions, however, none of them did work for me. I Have the following error:
Fatal error: Class 'Freeby\Basic\Navigator' not found in index.php on line *.
So I took a look at my index. It contains the following code:
index.php
namespace Freeby;
use \Freeby\Basic\Navigator as Navigator;
Navigator::execute();
The line where the error occurs is the last one, Navigator::execute();. So I went to take a look at this class found in the folder Basic. Navigator.php
namespace Freeby\Basic;
class Navigator
{
public static function execute()
{
}
}
So, I have my namespace there. It should be recognized. However, it does not. So I went on to check my composer.json.
{
"require": {
"mikecao/flight": "^1.3"
},
"autoload": {
"psr-4": {
"Freeby\\Basic\\": "Basic/"
}
}
}
And I think this one is correct. However I'm not that sure. To be sure I'll include my structure here too. Maybe it's a path issue? If yes, why? I Couldn't find it.
---- Basic
- Navigator.php
---- Vendor
- autoload.php
-- composer
---- composer.json
I think you need to load the composer autoloader first in index.php
<?php
namespace Freeby;
require __DIR__."/vendor/autoload.php";
use \Freeby\Basic\Navigator as Navigator;
Navigator::execute();
I am new with this namespace thing.
I have 2 classes(separate files) in my base directory, say class1.php and class2.php inside a directory src/.
class1.php
namespace \src\utility\Timer;
class Timer{
public static function somefunction(){
}
}
class2.php
namespace \src\utility\Verification;
use Timer;
class Verification{
Timer::somefunction();
}
When I execute class2.php, i get the Fatal error that
PHP Fatal error: Class 'Timer' not found in path/to/class2.php at
line ***
I read somewhere on SO, that I need to create Autoloaders for this. If so, how do I approach into creating one, and if not, then what else is the issue?
UPDATE
I created an Autoloader which will require all the required files on top of my php script.
So, now the class2.php would end up like this.
namespace \src\utility\Verification;
require '/path/to/class1.php'
use Timer;
//or use src\utility\Timer ... both doesn't work.
class Verification{
Timer::somefunction();
}
This also does not work, and it shows that class not found. But, if I remove all the namespaces, and use's. Everything works fine.
We can solve the namespace problem in two ways
1) We can just use namespace and require
2) We can use Composer and work with the autoloading!
The First Way (Namespace and require) way
Class1.php (Timer Class)
namespace Utility;
class Timer
{
public static function {}
}
Class2.php (Verification Class)
namespace Utility;
require "Class1.php";
//Some interesting points to note down!
//We are not using the keyword "use"
//We need to use the same namespace which is "Utility"
//Therefore, both Class1.php and Class2.php has "namespace Utility"
//Require is usually the file path!
//We do not mention the class name in the require " ";
//What if the Class1.php file is in another folder?
//Ex:"src/utility/Stopwatch/Class1.php"
//Then the require will be "Stopwatch/Class1.php"
//Your namespace would be still "namespace Utility;" for Class1.php
class Verification
{
Timer::somefunction();
}
The Second Way (Using Composer and the autoloading way)
Make composer.json file. According to your example "src/Utility"
We need to create a composer.json file before the src folder. Example: In a folder called myApp you will have composer.json file and a src folder.
{
"autoload": {
"psr-4": {
"Utility\\":"src/utility/"
}
}
}
Now go to that folder open your terminal in the folder location where there is composer.json file. Now type in the terminal!
composer dump-autoload
This will create a vendor folder. Therefore if you have a folder named "MyApp"
you will see vendor folder, src folder and a composer.json file
Timer.php(Timer Class)
namespace Utility;
class Timer
{
public static function somefunction(){}
}
Verification.php (Verification Class)
namespace Utility;
require "../../vendor/autoload.php";
use Utility\Timer;
class Verification
{
Timer::somefunction();
}
This method is more powerful when you have a complex folder structure!!
You are going to need to implement an autoloader, as you have already read about it in SO.
You could check the autoloading standard PSR-4 at http://www.php-fig.org/psr/psr-4/ and you can see a sample implementation of PSR-4 autoloading and an example class implementation to handle multiple namespaces here https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-4-autoloader-examples.md.
I'm using the Laravel framework and have a directory of the following structure:
models
Statistic.php
presenters
StatisticPresenter.php
In my models/Statistic class, I'm trying to access a present method which calls a protected property which then references my presenter:
protected $presenter = 'presenters\StatisticPresenter';
public function present() {
return new $this->presenter($this);
}
Yet, this returns the error: Class 'presenters\StatisticPresenter' not found. I realize this is a namespacing error of some sort, and I've tried watching a few videos on how it works, but I simply can't wrap my head around it. I have already added my presenter folder to my composer.json file. For example, adding this to the top of my Statistic model does not work:
use presenters\StatisticPresenter;
How can I fix this?
Do the followings;
Mark your namespace in StatisticPresenter.php ? (at the top of file "namespace presenters;")
Add PSR-4 class map to your composer
{
"autoload": {
"psr-4": {
"presenters\\": "app/presenters/"
}
}
}
run "composer dump-autoload" once and you wont need to run this command again for the "presenters" namespace if you add new classes into "app/presenters/ folder"
Test your class with "use presenters/StatisticPresenter;"
If you can access your class you dont need to change your code your present() function will be valid