PHP 未捕获错误:未使用 Composer 自动加载找到类 [英] PHP Uncaught Error: Class not found using composer autoload
问题描述
我正在使用 SymfonyConsole 包编写一个简单的项目,但是我遇到了找不到类的异常:
PHP 致命错误:未捕获的错误:在/home/PhpstormProjects/RVLE/RVLE.php:9 中找不到类ProjectExtractLinkCommand"堆栈跟踪:#0 {主要}在第 9 行的/home/PhpstormProjects/RVLE/RVLE.php 中抛出
我找不到问题所在,有人说自动加载器不是标准的,您应该自己编写.我还更新了 composer 并运行了 composer dump-autoload
.
这是我的文件 ->
RVLE.php:
#!/usr/bin/env php<?php需要供应商/自动加载.php";使用 ProjectExtractLinkCommand;使用 SymfonyComponentConsoleApplication;$app = new Application('RVLE', '1.0');$app->add(new ExtractLinkCommand());$app->run();
extractCommand.php:
setName('getLinks')->setDescription('提取给定页面url的所有可用视频链接')->addArgument('url', InputArgument::REQUIRED, '页面链接');}公共函数执行(InputInterface $input, OutputInterface $output){$url = $input->getArgument('url');$output->writeln($url);}}
composer.json:
<代码>{要求": {symfony/控制台":^3.3"},自动加载":{psr-4":{项目\":src/"}}}
这是我的项目结构:
<预><代码>.├── composer.json├── composer.lock├── RVLE.php├── src│ └── extractCommand.php└── 供应商├── autoload.php├── 仓├──作曲家├── psr└── 交响乐我认为你需要将你的文件名与你的类名匹配,所以它应该是 ExtractLinkCommand.php
,否则 composer autoloader 获胜找不到.
I'm writing a simple project using SymfonyConsole package, but I got class not found exception:
PHP Fatal error: Uncaught Error: Class 'ProjectExtractLinkCommand' not found in /home/PhpstormProjects/RVLE/RVLE.php:9
Stack trace:
#0 {main}
thrown in /home/PhpstormProjects/RVLE/RVLE.php on line 9
I can't find what the problem, somebody says autoloader is not standard and you should write it your own.
I also updated composer and ran composer dump-autoload
.
Here are my files ->
RVLE.php:
#!/usr/bin/env php
<?php
require 'vendor/autoload.php';
use ProjectExtractLinkCommand;
use SymfonyComponentConsoleApplication;
$app = new Application('RVLE' , '1.0');
$app->add(new ExtractLinkCommand());
$app->run();
extractCommand.php:
<?php namespace Project;
use SymfonyComponentConsoleCommandCommand;
use SymfonyComponentConsoleInputInputArgument;
use SymfonyComponentConsoleInputInputInterface;
use SymfonyComponentConsoleOutputOutputInterface;
class ExtractLinkCommand extends Command
{
public function configure()
{
$this->setName('getLinks')
->setDescription('extract all available video links for given page url')
->addArgument('url', InputArgument::REQUIRED, 'page link');
}
public function execute(InputInterface $input, OutputInterface $output)
{
$url = $input->getArgument('url');
$output->writeln($url);
}
}
composer.json:
{
"require": {
"symfony/console": "^3.3"
},
"autoload": {
"psr-4": {
"Project\": "src/"
}
}
}
This is my project structure:
.
├── composer.json
├── composer.lock
├── RVLE.php
├── src
│ └── extractCommand.php
└── vendor
├── autoload.php
├── bin
├── composer
├── psr
└── symfony
I think you need to match your file name to your class name so it should be ExtractLinkCommand.php
, otherwise the composer autoloader won't find it.
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