速習PHP

brew install php

% php --version
PHP 8.3.2 (cli) (built: Jan 16 2024 13:46:41) (NTS)
Copyright (c) The PHP Group
Zend Engine v4.3.2, Copyright (c) Zend Technologies
    with Zend OPcache v8.3.2, Copyright (c), by Zend Technologies

<?php
  echo 'Hello World';

php test.php
Hello World%

<?php ?>

$name = 'Yamanaka';

const CONST = 'CONST';

<?php
echo "Hello World\n";
$name = 'Yamanaka';
echo 'Hello' . ' ' . $name . "\n";

// これはヒアドキュメント
$json = <<<EOT
{
  "value": 1
}
EOT;

// これはナウドキュメント
$json = <<<'EOT'
{
  "value": 1
}
EOT;

function add(int $num, int $num2): int
{
  return $num + $num2;
}

echo add(1.5, 2); // これができてしまう

declare(strict_types=1);

class User
{
  public string $name;

  public function __construct(string $name)
  {
    $this->name = $name;
  }
}

function getType(mixed $val): string|null
{
  if (is_string($val)) {
    return 'string';
  } elseif (is_int($val)) {
    return 'int';
  } else {
    return null;
  }
}

$var = "100";
$intVar = (int)$var; // または (integer)$var

$arr = [1, 2, 3];
$members = [
  'name' => 'Yamanaka',
  'age' => 33
];

echo $arr[0];
echo $members['name'];

function fizzBuzz(int $num): string
{
  if ($num % 15 === 0) {
    $result = "FizzBuzz!!";
  } elseif ($num % 5 === 0) {
    $result = "Buzz!!";
  } elseif ($num % 3 === 0) {
    $result = "Fizz!!";
  } else {
    $result = "Unkown";
  }
  return $result;
}

foreach ($arr as $num) {
  echo "$num\n";
}

foreach ($arr as $i => $num) {
  echo "$i => $num\n";
}

1
2
3
0 => 1
1 => 2
2 => 3

for ($i = 0; $i < count($arr); $i++) {
  echo "$arr[$i]\n";
}

for ($i = 0; $i < count($arr); $i++) {
  echo "$i => $arr[$i]\n";
}

$a = 0;
while ($a < 10) {
  $a++;
  echo $a;
}

$variable = 'value';
switch ($variable) {
  case 'value':
    echo "value\n";
    break;

  default:
    echo "no value\n";
    break;
}

$json = <<<EOT
{
  "value": 1
}
EOT;

$decoded = json_decode($json);
$encoded = json_encode($decoded);

$val = 'World';
hello();

function hello(): void {
    global $val;
    echo "Hello $val\n";
}

function countup(): void {
    static $counter = 0;
    $counter++;
    echo $counter;
}

countup(); // 1
countup(); // 2

class User {
    public string $name;

    private function __construct(string $name) {
        $this->name = $name;
    }

    static public function newUser(string $name): User {
        return new User($name);
    }
}

$add = function(int $x, int $y): int {
    return $x + $y;
};

echo $add(1, 2);

$add = function(int $x, int $y): int {
    return $x + $y;
};

echo calc(1, 2, $add);

function calc(int $x, int $y, callable $callback): int {
    return $callback($x, $y);
}

array_map(fn(int $num) => $num * 2, [1, 2, 3]);

<?php

require './user.php';

echo is_null($undefined); // 1

<?php

class User {
    public string $name;

    private function __construct(string $name) {
        $this->name = $name;
    }

    static public function newUser(string $name): User {
        return new User($name);
    }
}

$user = new User($name);

echo $user->name;

$user->hello();

$user = User::newUser("user");

abstract class AbstractPerson {
    public string $name;

    public function hello(): string {
        return "hello";
    }

    abstract public function greet(): string;
}

class Person extends AbstractPerson {
    public function __construct(string $name) {
        $this->name = $name;
    }

    public function greet(): string {
        return 'Hi!!';
    }
}

interface UpperName {
    public function upperName(): string;
}

class Person extends AbstractPerson implements UpperName {
    public function __construct(string $name) {
        $this->name = $name;
    }

    public function greet(): string {
        return 'Hi!!';
    }

    public function upperName(): string {
        return strtoupper($this->name);
    }
}

trait Japanese {
    public function helloJa(): string {
        return 'こんにちは';
    }
}

class Person extends AbstractPerson implements UpperName {
    use Japanese;

    public function __construct(string $name) {
        $this->name = $name;
    }

    public function greet(): string {
        return 'Hi!!';
    }

    public function upperName(): string {
        return strtoupper($this->name);
    }
}

php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
php -r "if (hash_file('sha384', 'composer-setup.php') === 'e21205b207c3ff031906575712edab6f13eb0b361f2085f1f1237b7126d785e826a450292b6cfd1d64d92e6563bbde02') { echo 'Installer verified'; } else { echo 'Installer corrupt'; unlink('composer-setup.php'); } echo PHP_EOL;"
php composer-setup.php
php -r "unlink('composer-setup.php');"

sudo mv composer.phar /usr/local/bin/composer

$ composer --version
Composer version 2.6.6 2023-12-08 18:32:26

$ composert init

$ tree -L 2 .
.
├── composer.json
├── src
└── vendor
    ├── autoload.php
    └── composer

{
    "name": "20240124/myapp",
    "autoload": {
        "psr-4": {
            "MyApp\\": "src/"
        }
    },
    "require": {}
}

composer require guzzlehttp/guzzle

    "autoload": {
        "psr-4": {
            "MyApp\\": "src/"
        }

require 'vendor/autoload.php';

<?php

namespace MyApp\User;
class User {
    public string $name;

    public function __construct(string $name) {
        $this->name = $name;
    }
}

<?php

require_once __DIR__ . "/vendor/autoload.php";

use MyApp\User\User;

$user = new User('user');
echo $user->name;

% composer create-project laravel/laravel task_test --prefer-dist

% tree -a -L 1 .        
.
├── .editorconfig
├── .env
├── .env.example
├── .gitattributes
├── .gitignore
├── README.md
├── app
├── artisan
├── bootstrap
├── composer.json
├── composer.lock
├── config
├── database
├── package.json
├── phpunit.xml
├── public
├── resources
├── routes
├── storage
├── tests
├── vendor
└── vite.config.js

$ touch database/database.sqlite

DB_CONNECTION=sqlite
# DB_HOST=127.0.0.1
# DB_PORT=3306
# DB_DATABASE=laravel
# DB_USERNAME=root
# DB_PASSWORD=

$ php artisan migrate

<?php

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Route;

/*
|--------------------------------------------------------------------------
| API Routes
|--------------------------------------------------------------------------
|
| Here is where you can register API routes for your application. These
| routes are loaded by the RouteServiceProvider and all of them will
| be assigned to the "api" middleware group. Make something great!
|
*/

Route::middleware('auth:sanctum')->get('/user', function (Request $request) {
    return $request->user();
});

$ php artisan make:controller UserController --api

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class UserController extends Controller
{
    /**
     * Display a listing of the resource.
     */
    public function index()
    {
        //
    }

    /**
     * Store a newly created resource in storage.
     */
    public function store(Request $request)
    {
        //
    }

    /**
     * Display the specified resource.
     */
    public function show(string $id)
    {
        //
    }

    /**
     * Update the specified resource in storage.
     */
    public function update(Request $request, string $id)
    {
        //
    }

    /**
     * Remove the specified resource from storage.
     */
    public function destroy(string $id)
    {
        //
    }
}

<?php

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Route;
use App\Http\Controllers\UserController;

/*
|--------------------------------------------------------------------------
| API Routes
|--------------------------------------------------------------------------
|
| Here is where you can register API routes for your application. These
| routes are loaded by the RouteServiceProvider and all of them will
| be assigned to the "api" middleware group. Make something great!
|
*/

Route::middleware('auth:sanctum')->get('/user', function (Request $request) {
    return $request->user();
});

+Route::apiResource('/users', UserController::class);

$ php artisan route:list

  GET|HEAD        / ............................................................................................................................................................
  POST            _ignition/execute-solution ..................................................... ignition.executeSolution › Spatie\LaravelIgnition › ExecuteSolutionController
  GET|HEAD        _ignition/health-check ................................................................. ignition.healthCheck › Spatie\LaravelIgnition › HealthCheckController
  POST            _ignition/update-config .............................................................. ignition.updateConfig › Spatie\LaravelIgnition › UpdateConfigController
  GET|HEAD        api/user .....................................................................................................................................................
  GET|HEAD        api/users ................................................................................................................. users.index › UserController@index
  POST            api/users ................................................................................................................. users.store › UserController@store
  GET|HEAD        api/users/{user} ............................................................................................................ users.show › UserController@show
  PUT|PATCH       api/users/{user} ........................................................................................................ users.update › UserController@update
  DELETE          api/users/{user} ...................................................................................................... users.destroy › UserController@destroy
  GET|HEAD        sanctum/csrf-cookie ........................................................................ sanctum.csrf-cookie › Laravel\Sanctum › CsrfCookieController@show

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\Models\User;
use Illuminate\Support\Facades\Log;

class UserController extends Controller
{
    /**
     * Display a listing of the resource.
     */
    public function index()
    {
        return User::all();
    }

    /**
     * Store a newly created resource in storage.
     */
    public function store(Request $request)
    {
        Log::info('リクエストがきたよ');
        $user = User::create([
            'name' => $request->input('name'),
            'email' => $request->input('email'),
            'password' => bcrypt($request->input('password'))
        ]);
        Log::info(json_encode($user));
        return $user;
    }

    /**
     * Display the specified resource.
     */
    public function show(string $id)
    {
        return User::where('id', $id)->get();
    }

    /**
     * Update the specified resource in storage.
     */
    public function update(Request $request, string $id)
    {
        return User::where('id', $id)->update($request->all());
    }

    /**
     * Remove the specified resource from storage.
     */
    public function destroy(string $id)
    {
        return User::where('id', $id)->delete();
    }
}

<?php

namespace App\Models;

// use Illuminate\Contracts\Auth\MustVerifyEmail;
use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Notifications\Notifiable;
use Laravel\Sanctum\HasApiTokens;

class User extends Authenticatable
{
    use HasApiTokens, HasFactory, Notifiable;

    /**
     * The attributes that are mass assignable.
     *
     * @var array<int, string>
     */
    protected $fillable = [
        'name',
        'email',
        'password',
    ];

    /**
     * The attributes that should be hidden for serialization.
     *
     * @var array<int, string>
     */
    protected $hidden = [
        'password',
        'remember_token',
    ];

    /**
     * The attributes that should be cast.
     *
     * @var array<string, string>
     */
    protected $casts = [
        'email_verified_at' => 'datetime',
        'password' => 'hashed',
    ];
}

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;

class AuthController extends Controller
{
    public function login(Request $request)
    {
        if (Auth::attempt(['email' => $request->email, 'password' => $request->password])) {
            $token = $request->user()->createToken('AccessToken')->plainTextToken;
            return response()->json(['token' => $token], 200);
        } else {
            return response()->json(['error' => '認証に失敗しました。'], 401);
        }
    }

    public function logout(Request $request)
    {
        $request->user()->currentAccessToken()->delete();
        return response()->json(['message' => 'ログアウトしました。'], 200);
    }
}

<?php

use App\Http\Controllers\AuthController;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Route;
use App\Http\Controllers\UserController;

/*
|--------------------------------------------------------------------------
| API Routes
|--------------------------------------------------------------------------
|
| Here is where you can register API routes for your application. These
| routes are loaded by the RouteServiceProvider and all of them will
| be assigned to the "api" middleware group. Make something great!
|
*/

Route::middleware('auth:sanctum')->get('/user', function (Request $request) {
    return $request->user();
});

Route::apiResource('/users', UserController::class);

+Route::post('/login', [AuthController::class, 'login'])->name('login');