Class not found in the namespace - php

I'm very new in the field and I'm trying to create my first composer package. I'm following the structure mentioned here but for some reason I always get that the class is not found.
My directory structure is
Project
- src/
-- project
index.php
- vendor/
-- composer/
autoload.php
index.php
So in the main directory Project I have index.php with
<?php
use App\project;
// Autoload files using the Composer autoloader.
require_once __DIR__ . '/vendor/autoload.php';
$entry = new simplePrint();
echo($entry->printHome());
In the directory src/project/ I have index.php with
<?php
namespace App\project;
class simplePrint {
public function printHome() {
return "Hey";
}
}
in composer.json
"autoload": {
"psr-4": {
"App\\": "src/"
}
}
After I create the files, I've made
composer install
composer dump-autoload
What I'm missing here?
Update: after composer update it is still same. The output of the composer update
$ composer update
Loading composer repositories with package information
Updating dependencies
Nothing to modify in lock file
Installing dependencies from lock file (including require-dev)
Nothing to install, update or remove
Generating autoload files
127.0.0.1:45046 [500]: GET / - Uncaught Error: Class "App\project" not found in ...

PSR-4 says following: The terminating class name corresponds to a file name ending in .php. The file name MUST match the case of the terminating class name.
So you must call your filename simplePrint.php and not index.php.
Here you can read some more information about PSR-4: https://www.php-fig.org/psr/psr-4/

Related

Composer autoload in Wordpress custom plugin

I'm developing a brand new Wordpress plugin and I would like to use Composer to autoload classes.
Here is the plugin directory heriarchy:
my composer.json content:
{
"autoload": {
"psr-4": {
"G4S_ECommerce\\": "src"
}
}
}
In the directory where composer.json is, on cmd, I execute:
composer install -> this generates the vendor/composer folder and the vendore/autoload.php.
composer composer dumpautoload -o -> outputs "Generated optimized autoload files containing 0 classes"
In the main file G4S_Ecommerce.php I put the following line:
require __DIR__.'/vendor/autoload.php';
In the same file I put
use G4S_Ecommerce\Includes\Ecommerce;
$starter = new Ecommerce();
but it leads me to a Fatal error: Uncaught Error: Class 'G4S_Ecommerce\Includes\Ecommerce' not found
Why the composer dumpautoload -o returns 0 classes? What am I doing wrong?
Thanks
First (it is not obvious from your files structure) you need to set a namespace for your Ecommerce class (i.e., G4S_Ecommerce/Includes)
Second, based on what you've declared in the autoload directive, composer is expecting to find the G4S_Ecommerce folder under the src folder, and in that folder you need to place your php class file with a name identical to the class name (i.e., Ecommerce).

Composer not auto-loading required classes

I'm new to Composer and I'm really struggling to auto-load my classes with composer. What am I missing in the following process?
I installed the package in my PHP includes folder (which is outside the document root - I'm not sure if that matters) like this:
composer require monolog\monolog
It stated it completed successfully and I confirmed the project was added to my vendor folder.
My entire composer.json file looks like this:
{
"require": {
"monolog/monolog": "^1.22"
}
}
My entire test file looks like this:
<?php
require_once "vendor/autoload.php";
use Monolog\Logger;
$log = new Logger("name");
?>
And I get this error when I load the page:
Fatal error: Uncaught Error: Class 'Monolog\Logger' not found in C:\Dropbox\Projects\Web\Websites\Instamation\wwwroot\qbtest.php:6 Stack trace: #0 {main} thrown in C:\Dropbox\Projects\Web\Websites\Instamation\wwwroot\qbtest.php on line 6
It includes the vendor/autoload.php file without any error.
I've tried to run these commands in composer without any change:
composer update
composer dump-autoload -0
I've also tried it with different packages and I get the same error, so I'm pretty sure it has nothing to do with the monolog package.
Is there a step here I'm missing? I don't need to manually define which classes to autoload in a json file if I require them in composer, do I?
Edit 1:
As requested, here's the paths to my different files.
Path to the test page:
C:\Dropbox\Projects\Web\Websites\Instamation\wwwroot\qbtest.php
Path to the composer.json file (outside the document root but in my includes path):
C:\Dropbox\Projects\Web\Websites\Instamation\wwwincludes\composer.json
My vendor folder is here:
C:\Dropbox\Projects\Web\Websites\Instamation\wwwincludes\vendor\
And inside my vendor folder I have these folders and file:
bin/
composer/
monolog/
psr/
autoload.php
You need to include autoload in your qbtest.php as following:
require_once "../wwwincludes/vendor/autoload.php";
use Monolog\Logger;
$log = new Logger("name");

Composer Autoload Issue

I've added composer to an existing project that uses the PHP autoload function. Now that composer autoload.php is being used I've removed my old autoload function and I'm trying to load my existing source directory via composer autoload but it isn't picking up any of my existing source classes.
Everything installed by composer loads fine and can be accessed via namespaces etc. so it's just the existing sources in the source directory not being picked up. Any suggestions?
I've looked at a few other of the composer questions on stackoverflow but nothing I've read has solved my problem.
File structure:
index.php
root/
sources/
vendor/
composer.json
media/
Composer autoload:
"autoload": {
"psr-0": {
"" : "sources/"
}
}
There were two things causing issues for me, one was the class file names and the second was a composer command that needed to be run.
My class file names were in the format {classname}.class.php when they need to be in the format that PSR-0 expects which is Classname.php (uppercase first letter) and in turn the classname in the class file follows the file name.
class Classname
{
...
The second issue was that I needed to run the below command.
composer dump-autoload
From composer.org:
If you need to update the autoloader because of new classes in a classmap package for example, you can use "dump-autoload" to do that without having to go through an install or update.
If your code structure is too complex to convert to PSR-* structure, you can use your old autoloader and composer autoload together.
spl_autoload_register( function ( $class ) {
$file = "sources/" . $class . ".class.php";
if ( file_exists( $file ) ) {
require $file;
return;
}
} );
require "vendor/autoload.php";

PSR-4 autoloading with Composer

I run a portail with composer's autoloading class system:
"autoload": {
"psr-4": {
"Portal\\": "src/"
}
}
It works when I run composer.phar dump -o, for instance my class Boostrap is well referenced into vendor/composer/autoload_classmap.php file:
'Portal\\Core\\Bootstrap' => $baseDir . '/src/core/Bootstrap.php',
But when I don't run the optimized option on autoload dumping, the autoloading system doesn't works anymore:
Fatal error: Class 'Portal\Core\Bootstrap' not found in /var/www/portail/prod/web/index.php on line 7
How can I make autoloading works without -o option?
There are two ways to fix it.
change composer.json to
"Portal\\Core\\": "src/core/"
Or rename the core directory to Core
https://getcomposer.org/doc/04-schema.md#psr-4
The subdirectory name MUST match the case of the sub-namespace names.
http://www.php-fig.org/psr/psr-4/

Class RemindersController does not exist

I changed the app/controllers to app/Controllers, add in composer.json file:
"psr-0": {
"Controllers": "app/",
"Test":"app/"
}
In my controllers, i add:
namespace Controllers;
When i was update with composer, the following error:
L:\USB\Test>composer update
Loading composer repositories with package information
Updating dependencies (including require-dev)
Nothing to install or update
Generating autoload files
{"error":{"type":"ReflectionException","message":"Class RemindersController does
not exist","file":"L:\\USB\\Test\\vendor\\laravel\\framework\\src\\Illuminate\
\Routing\\ControllerInspector.php","line":28}}{"error":{"type":"ReflectionExcept
ion","message":"Class RemindersController does not exist","file":"L:\\USB\\Test
\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\ControllerInspector.php"
,"line":28}}
since you added a namespace "Controllers" to classes that did not previously have them, did you also update all of your routes that use the controller's name?
for example:
Route::controller('reminders', '\Controllers\RemindersController');
and
route(\Controllers\RemindersController#getIndex);

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