Class not found after composer require [duplicate] - php

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PHP class not found when using namespace
(2 answers)
Closed 3 years ago.
I'm learning php and composer following the article
I try to use external dependancy composer require phpunit/php-timer.
Here is my composer.json:
{
"name": "ypapax/composer_php_hello_world_log4php",
"minimum-stability": "dev",
"require": {
"php": ">= 7.2",
"phpunit/php-timer": "^2.1#dev"
},
"autoload": {
"psr-0": {
"HelloWorld": "src/"
},
"classname": {
"PHP_Timer": "src/"
}
}
}
and my test.php:
<?php
// Autoload files using Composer autoloader.
require_once __DIR__ . '/../vendor/autoload.php';
use HelloWorld\Greetings;
echo Greetings::sayHelloWorld();
Where greetings.php is
<?php
namespace HelloWorld;
use PHP_Timer;
class Greetings
{
public static function sayHelloWorld()
{
$timer = new PHP_Timer();
$timer . start();
return 'Hello World\n' . $timer->resourceUsage() . "\n";
}
}
When I run the test php tests/test.php
it gives me an error:
PHP Fatal error: Uncaught Error: Class 'PHP_Timer' not found in composer_php_hello_world_log4php/src/HelloWorld/Greetings.php:11
Stack trace:
#0 composer_php_hello_world_log4php/tests/test.php(8): HelloWorld\Greetings::sayHelloWorld()
#1 {main}
thrown in composer_php_hello_world_log4php/src/HelloWorld/Greetings.php on line 11
Fatal error: Uncaught Error: Class 'PHP_Timer' not found in composer_php_hello_world_log4php/src/HelloWorld/Greetings.php:11
Stack trace:
#0 composer_php_hello_world_log4php/tests/test.php(8): HelloWorld\Greetings::sayHelloWorld()
#1 {main}
thrown in composer_php_hello_world_log4php/src/HelloWorld/Greetings.php on line 11
I guess something wrong is in composer.json:
"classname": {
"PHP_Timer": "src/"
}
PHP version:
$ php --version
PHP 7.3.9 (cli) (built: Sep 14 2019 18:07:55) ( NTS )
Link to my test repo
Update
Here is my file autoload_namespaces.php:
<?php
// autoload_namespaces.php #generated by Composer
$vendorDir = dirname(dirname(__FILE__));
$baseDir = dirname($vendorDir);
return array(
'HelloWorld' => array($baseDir . '/src'),
);
And autoload_classmap.php:
<?php
// autoload_classmap.php #generated by Composer
$vendorDir = dirname(dirname(__FILE__));
$baseDir = dirname($vendorDir);
return array(
'SebastianBergmann\\Timer\\Exception' => $vendorDir . '/phpunit/php-timer/src/Exception.php',
'SebastianBergmann\\Timer\\RuntimeException' => $vendorDir . '/phpunit/php-timer/src/RuntimeException.php',
'SebastianBergmann\\Timer\\Timer' => $vendorDir . '/phpunit/php-timer/src/Timer.php',
);

Answer 1

You are not loading the right namespace. I suggest you to checkout the examples on the package page

Answer 2

I think you don't need this in your composer.json:
"classname": {
"PHP_Timer": "src/"
}
According to https://github.com/sebastianbergmann/php-timer/blob/master/src/Timer.php you need
use SebastianBergmann\Timer\Timer as PHP_Timer;
in your greetings.php file.

Answer 3

The use statement was missing from the Greetings class:
<?php
namespace HelloWorld;
use SebastianBergmann\Timer\Timer;
class Greetings
{
public static function sayHelloWorld()
{
$timer = new Timer();
$timer::start();
return 'Hello World\n' . $timer->resourceUsage() . "\n";
}
}
and this can be removed from composer.json:
"classname": {
"PHP_Timer": "src/"
}