PHP怎样解析命令行参数 PHP解析命令行参数完整教程

<?php

// 脚本名称总是 $argv[0]
echo "脚本名称: " . $argv[0] . "\n";

// 遍历所有参数
for ($i = 1; $i < $argc; $i++) {
    echo "参数 " . $i . ": " . $argv[$i] . "\n";
}

?>

脚本名称: test.php
参数 1: arg1
参数 2: arg2
参数 3: arg3

<?php

$options = getopt("a:b::c", ["longopts:", "anotheropt::", "thirdopt"]);

var_dump($options);

?>

array(4) {
  ["a"]=>
  string(5) "value"
  ["b"]=>
  bool(false)
  ["longopts"]=>
  string(9) "longvalue"
  ["thirdopt"]=>
  bool(false)
}

composer require symfony/console

<?php

require 'vendor/autoload.php';

use Symfony\Component\Console\Application;
use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputArgument;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;

class MyCommand extends Command
{
    protected function configure()
    {
        $this
            ->setName('my:command')
            ->setDescription('A simple command')
            ->addArgument('name', InputArgument::REQUIRED, 'Who do you want to greet?')
            ->addOption('greeting', null, InputOption::VALUE_OPTIONAL, 'The greeting to use', 'Hello');
    }

    protected function execute(InputInterface $input, OutputInterface $output)
    {
        $name = $input->getArgument('name');
        $greeting = $input->getOption('greeting');

        $output->writeln($greeting . ', ' . $name . '!');

        return 0;
    }
}

$application = new Application();
$application->add(new MyCommand());
$application->run();

Good morning, John!

<?php

// ... (之前的代码)

use Symfony\Component\Console\Exception\InvalidArgumentException;

class MyCommand extends Command
{
    protected function configure()
    {
        $this
            ->setName('my:command')
            ->setDescription('A command that requires a positive integer as argument')
            ->addArgument('age', InputArgument::REQUIRED, 'Your age')
            ->addOption('adult', null, InputOption::VALUE_NONE, 'Check if you are an adult');
    }

    protected function execute(InputInterface $input, OutputInterface $output)
    {
        $age = $input->getArgument('age');

        if (!is_numeric($age) || $age <= 0) {
            throw new InvalidArgumentException('Age must be a positive integer.');
        }

        if ($input->getOption('adult') && $age < 18) {
            $output->writeln('You are not an adult.');
        } else {
            $output->writeln('You are an adult.');
        }

        return 0;
    }
}

// ... (之前的代码)

Usage:
  my:command [options] <name>

Arguments:
  name                  Who do you want to greet?

Options:
  --greeting=GREETING   The greeting to use (default: "Hello")
  --help (-h)           Display this help message
  --quiet (-q)          Do not output any message
  --verbose (-v|vv|vvv)  Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug
  --version (-V)        Display this application version
  --ansi                Force ANSI output
  --no-ansi             Disable ANSI output
  --no-interaction (-n) Do not ask any interactive question

Help:
  A simple command

FROM php:7.4-cli

WORKDIR /app

COPY . /app

RUN chmod +x test.php

CMD ["php", "test.php", "arg1", "arg2"]