一、PHP 简易 Web 服务器

1、基本介绍

• PHP 自带一个简易的 Web 服务器，适合快速测试，启动方式如下

php -S 【监听地址】:【监听端口】

# 例如

php -S 127.0.0.1:8000

2、注意事项

1. 通过以下方式启动，就需要通过 localhost 访问，而不能通过 127.0.0.1 访问

php -S localhost:8000

2. 通过以下方式启动，就可以通过 127.0.0.1 访问，也可以通过 localhost 访问

php -S 127.0.0.1:8000

二、基础接口开发

1、GET 请求

• test/testGet/index.php

<?php
header('Content-Type: text/plain');

if ($_SERVER['REQUEST_METHOD'] !== 'GET') {
    http_response_code(405);
    echo 'Error: Only GET method is allowed';
    exit;
}

echo "testGet Hello World";

exit;

2、GET 请求携带参数

• test/testGetCarryData/index.php

<?php
header('Content-Type: text/plain');

if ($_SERVER['REQUEST_METHOD'] !== 'GET') {
    http_response_code(405);
    echo 'Error: Only GET method is allowed';
    exit;
}

$str = $_GET['str'];

echo "testGetCarryData " . $str;

exit;

3、RESTful GET 请求

• test/testGetRestful/index.php

<?php
header('Content-Type: application/json');

if ($_SERVER['REQUEST_METHOD'] !== 'GET') {
    http_response_code(405);
    echo 'Error: Only GET method is allowed';
    exit;
}

$path = explode('/', $_SERVER['REQUEST_URI']);
$id = (int) end($path);

class User
{
    public $id;
    public $name;
    public $age;

    public function __construct($id, $name, $age)
    {
        $this->id = $id;
        $this->name = $name;
        $this->age = $age;
    }
}

$userMap = [
    1 => new User(1, "jack", 10),
    2 => new User(2, "tom", 20),
    3 => new User(3, "smith", 30)
];

echo json_encode($userMap[$id], JSON_PRETTY_PRINT);

exit;

4、POST 请求

• test/testPost/index.php

<?php
header('Content-Type: application/json');

if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
    http_response_code(405);
    echo 'Error: Only POST method is allowed';
    exit;
}

$json = file_get_contents('php://input');
$data = json_decode($json);

class User
{
    public $id;
    public $name;
    public $age;

    public function __construct($id, $name, $age)
    {
        $this->id = $id;
        $this->name = $name;
        $this->age = $age;
    }
}

$userMap = [
    1 => new User(1, "jack", 10),
    2 => new User(2, "tom", 20),
    3 => new User(3, "smith", 30)
];

echo json_encode($userMap[$data->id], JSON_PRETTY_PRINT);

exit;