PHP学習メモ

10/6/2019 - 5:37 AM

Rendered
Source

// phpファイルの読み込み
require_once('./test.php');

//  配列
$fruits = array('apple', 'orange', 'banana');

//  配列の末尾に追加
$fruits[] = 'strawberry';

//  連想配列
$fruit = array(
  name => 'apple',
  color => 'red',
  number => '3'
);

//  for
for( $i = 0, $i =< 10, $i++ ) {
  echo $i;
}

//  while
$i = 1; // 初期化
while ( $i >= 10 ) {
  echo $i;
  $i++;
}

//  break:処理を強制に中断
for( $i = 0, $i =< 10, $i++ ) {
  if( $i > 5 ){ //  $iが6になった時点でfor文終了
    break;
  }
  echo $i;
}

//  continue:その周だけスキップ、for処理を継続
for( $i = 0, $i =< 10, $i++ ) {
  if( $i % 3 == 0 ){ //  $iが3の場合だけ処理をスキップ
    continue;
  }
  echo $i;
}

// forをhtmlに埋め込むとき
<?php for( $i = 0, $i =< 10, $i++ ): ?>
  <p><?php echo $i; ?></p>
<?php endfor ?>

//  foreach
$fruits = array('apple', 'orange', 'banana');
foreach( $fruits as $value ) {
  echo $value;
}

//  キー変数は省略可
foreach ( $fruits as $key => $value ) {
  echo $key.':'.$value;  
}

// foreachをhtmlに埋め込むとき
<?php $fruits = array('apple', 'orange', 'banana'); ?>
<php foreach( $fruits as $value ): ?>
  <p><?php echo $value ?></p>
<?php endforeach ?>


//  strlen:文字列の文字数を返す
$language = 'PHP';
echo strlen($language); // 結果：3

//  count:配列の要素の数を返す
$fruits = array('apple', 'orange', 'banana');
count($fruits); // 結果：3

// rand:ランダムな数を返す
rand(1, 10);  // 1～10のランダムな数を返す

//  関数の定義
function myFunc($num1, $num20) {
  return $num1 * $num2;
}
$culc = myFunc(3, 10);
echo $culc; // 結果：30

// クラス名は大文字で始める
class Menu {
  private $name; // プロパティを定義
  private $orderCount = 0;  // 初期値をセット
  public function __construct($name) {
    $this->name = $name;  // インスタンスのnameプロパティに値をセット
  }
  public getName() {
    return $this->name;
  }
  public setName($name) {
    $this->name = $name;
  }
}

// クラス生成
$curry = new Menu('Curry');

// プロパティに値をセット
$curry->name = 'Curry';

// セットした値にアクセス
echo $curry->name;

// メソッドにアクセス
echo $curry->hello();

プロパティは基本的にprivate
クラスプロパティの定義はstaticをつける
クラスプロパティへのアクセスはクラス名::$クラスプロパティ名
個々のインスタンスに関係ない処理を行うときはクラスメソッドを使う
クラスメソッドはstaticでを用いて定義、クラス名::クラスメソッド名　と呼び出す

//　継承
class Drink extends Menu {}

// インスタンスが特定のクラスのインスタンスかどうか判定
if($coffee instancof Drink) {
  echo "";
}

小クラスから親クラスプロパティへのアクセスを許可するにはprotected（privateではアクセスできない
オーバーライドの際に親クラスのメソッドを呼び出したいときにはparent::メソッド名（parent::__construct($xxx, $xxx);

index.php

<?php 
require_once('data.php');
require_once('menu.php');
?>

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>Café Progate</title>
  <link rel="stylesheet" type="text/css" href="stylesheet.css">
  <link href='https://fonts.googleapis.com/css?family=Pacifico|Lato' rel='stylesheet' type='text/css'>
</head>
<body>
  <div class="menu-wrapper container">
    <h1 class="logo">Café Progate</h1>
    <h3>メニュー<?php echo Menu::getCount() ?>品</h3>
    <form method="post" action="confirm.php">
      <div class="menu-items">
        <?php foreach ($menus as $menu): ?>
          <div class="menu-item">
            <img src="<?php echo $menu->getImage() ?>" class="menu-item-image">
            <h3 class="menu-item-name">
              <a href="show.php?name=<?php echo $menu->getName() ?>">
                <?php echo $menu->getName() ?>
              </a>
            </h3>
            <?php if ($menu instanceof Drink): ?>
              <p class="menu-item-type"><?php echo $menu->getType() ?></p>
            <?php else: ?>
              <?php for ($i=0; $i<$menu->getSpiciness(); $i++): ?>
                <img src="https://s3-ap-northeast-1.amazonaws.com/progate/shared/images/lesson/php/chilli.png" class='icon-spiciness'>
              <?php endfor ?>
            <?php endif ?>
            <p class="price">¥<?php echo $menu->getTaxIncludedPrice() ?>（税込）</p>
            <input type="text" value="0" name="<?php echo $menu->getName() ?>">
            <span>個</span>
          </div>
        <?php endforeach ?>
      </div>
      <input type="submit" value="注文する">
    </form>
  </div>
</body>
</html>

date.php

<?php
require_once('drink.php');
require_once('food.php');
require_once('review.php');
require_once('user.php');

$juice = new Drink('JUICE', 600, 'https://s3-ap-northeast-1.amazonaws.com/progate/shared/images/lesson/php/juice.png', 'アイス');
$coffee = new Drink('COFFEE', 500, 'https://s3-ap-northeast-1.amazonaws.com/progate/shared/images/lesson/php/coffee.png', 'ホット');
$curry = new Food('CURRY', 900, 'https://s3-ap-northeast-1.amazonaws.com/progate/shared/images/lesson/php/curry.png', 3);
$pasta = new Food('PASTA', 1200, 'https://s3-ap-northeast-1.amazonaws.com/progate/shared/images/lesson/php/pasta.png', 1);

$menus = array($juice, $coffee, $curry, $pasta);

$user1 = new User('suzuki', 'male');
$user2 = new User('tanaka', 'female');
$user3 = new User('suzuki', 'female');
$user4 = new User('sato', 'male');

$users = array($user1, $user2, $user3, $user4);

// 以下の$review1 ~ $review8を削除して、userIdプロパティをセットするためのコードを貼り付けてください
$review1 = new Review($juice->getName(), $user1->getId(), '果肉たっぷりのオレンジジュースです！');
$review2 = new Review($curry->getName(), $user1->getId(), '具がゴロゴロしていてとてもおいしいです');
$review3 = new Review($coffee->getName(), $user2->getId(), '香りがいいです');
$review4 = new Review($pasta->getName(), $user2->getId(), 'ソースが絶品です。また食べたい。');
$review5 = new Review($juice->getName(), $user3->getId(), '普通のジュース');
$review6 = new Review($curry->getName(), $user3->getId(), '値段の割においしいカレーだと思いました');
$review7 = new Review($coffee->getName(), $user4->getId(), '苦味がちょうどよくて、おすすめです');
$review8 = new Review($pasta->getName(), $user4->getId(), '具材にこだわりを感じました。');

$reviews = array($review1, $review2, $review3, $review4, $review5, $review6, $review7, $review8);

?>

menu.php

<?php
class Menu {
  protected $name;
  protected $price;
  protected $image;
  private $orderCount = 0;
  protected static $count = 0;
  
  public function __construct($name, $price, $image) {
    $this->name = $name;
    $this->price = $price;
    $this->image = $image;
    self::$count++;
  }
  
  public function hello() {
    echo '私は'.$this->name.'です';
  }
  
  public function getName() {
    return $this->name;
  }
  
  public function getImage() {
    return $this->image;
  }
  
  public function getOrderCount() {
    return $this->orderCount;
  }
  
  public function setOrderCount($orderCount) {
    $this->orderCount = $orderCount;
  }
  
  public function getTaxIncludedPrice() {
    return floor($this->price * 1.08);
  }
  
  public function getTotalPrice() {
    return $this->getTaxIncludedPrice() * $this->orderCount;
  }
  
  public function getReviews($reviews) {
    $reviewsForMenu = array();
    foreach ($reviews as $review) {
      if ($review->getMenuName() == $this->name) {
        $reviewsForMenu[] = $review;
      }
    }
    return $reviewsForMenu;
  }
  
  
  public static function getCount() {
    return self::$count;
  }
  
  public static function findByName($menus, $name) {
    foreach ($menus as $menu) {
      if ($menu->getName() == $name) {
        return $menu;
      }
    }
  }
  
}
?>

drink.php

<?php 
require_once('menu.php');

class Drink extends Menu {
  private $type;
  
  public function __construct($name, $price, $image, $type) {
    parent::__construct($name, $price, $image);
    $this->type = $type;
  }
  
  public function getType() {
    return $this->type;
  }
  
  public function setType($type) {
    $this->type = $type;
  }
  
}

?>

food.php

<?php 
require_once('menu.php');

class Food extends Menu {
  private $spiciness;
  
  public function __construct($name, $price, $image, $spiciness) {
    parent::__construct($name, $price, $image);
    $this->spiciness = $spiciness;
  }
  
  public function getSpiciness() {
    return $this->spiciness;
  }
  
}

?>

confirm.php

<?php require_once('data.php') ?>

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>Progate</title>
  <link rel="stylesheet" type="text/css" href="stylesheet.css">
  <link href='https://fonts.googleapis.com/css?family=Pacifico|Lato' rel='stylesheet' type='text/css'>
</head>
<body>
  <div class="order-wrapper">
    <h2>注文内容確認</h2>
    <?php $totalPayment = 0 ?>
    
    <?php foreach ($menus as $menu): ?>
      <?php 
        $orderCount = $_POST[$menu->getName()];
        $menu->setOrderCount($orderCount);
        $totalPayment += $menu->getTotalPrice();
      ?>
      <p class="order-amount">
        <?php echo $menu->getName() ?>
        x
        <?php echo $orderCount ?>
        個
      </p>
      <p class="order-price"><?php echo $menu->getTotalPrice() ?>円</p>
    <?php endforeach ?>
    <h3>合計金額: <?php echo $totalPayment ?>円</h3>
  </div>
</body>
</html>

review.php

<?php
class Review {
  private $menuName;
  // $userNameを$userIdに書き換えてください
  private $userId;
  private $body;

  // 引数の$userNameを$userIdに書き換えてください
  public function __construct($menuName, $userId, $body) {
    $this->menuName = $menuName;
    // userNameをuserIdに書き換えてください
    $this->userId = $userId;
    $this->body = $body;
  }

  public function getMenuName() {
    return $this->menuName;
  }

  public function getBody() {
    return $this->body;
  }
  
  public function getUser($users) {
    foreach ($users as $user) {
      // $userのidプロパティと、インスタンス自身のuserIdプロパティを比べるように書き換えてください
      if ($user->getId() == $this->userId) {
        return $user;
      }
    }
  }
  
}

?>

show.php

<?php
require_once('menu.php');
require_once('data.php');

$menuName = $_GET['name'];
$menu = Menu::findByName($menus, $menuName);
$menuReviews = $menu->getReviews($reviews);
?>

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>Progate</title>
  <link rel="stylesheet" type="text/css" href="stylesheet.css">
  <link href='https://fonts.googleapis.com/css?family=Pacifico|Lato' rel='stylesheet' type='text/css'>
</head>
<body>
  <div class="review-wrapper">
    <div class="review-menu-item">
      <img src="<?php echo $menu->getImage() ?>" class="menu-item-image">
      <h3 class="menu-item-name"><?php echo $menu->getName() ?></h3>
  
      <?php if ($menu instanceof Drink): ?>
        <p class="menu-item-type"><?php echo $menu->getType() ?></p>
      <?php else: ?>
        <?php for ($i = 0; $i < $menu->getSpiciness(); $i++): ?>
          <img src="https://s3-ap-northeast-1.amazonaws.com/progate/shared/images/lesson/php/chilli.png" class='icon-spiciness'>
        <?php endfor ?>
      <?php endif ?>
      <p class="price">¥<?php echo $menu->getTaxIncludedPrice() ?></p>
    </div>
    
    <div class="review-list-wrapper">
      <div class="review-list">
        <div class="review-list-title">
          <img src="https://s3-ap-northeast-1.amazonaws.com/progate/shared/images/lesson/php/review.png" class='icon-review'>
          <h4>レビュー一覧</h4>
        </div>
        <?php foreach ($menuReviews as $review): ?>
          <?php $user = $review->getUser($users) ?>
          <div class="review-list-item">
            <div class="review-user">
              <?php if ($user->getGender() == 'male'): ?>
                <img src="https://s3-ap-northeast-1.amazonaws.com/progate/shared/images/lesson/php/male.png" class='icon-user'>
              <?php else: ?>
                <img src="https://s3-ap-northeast-1.amazonaws.com/progate/shared/images/lesson/php/female.png" class='icon-user'>
              <?php endif ?>
              <p><?php echo $user->getName() ?></p>
            </div>
            <p class="review-text"><?php echo $review->getBody() ?></p>
          </div>
        <?php endforeach ?>
      </div>
    </div>
    <a href="index.php">← メニュー一覧へ</a>
  </div>
</body>
</html>

user.php

<?php
class User {
  private $id;
  private $name;
  private $gender;
  private static $count = 0;
  
  public function __construct($name, $gender) {
    $this->name = $name;
    $this->gender = $gender;
    self::$count++;
    $this->id = self::$count;
  }
  
  public function getId() {
    return $this->id;
  }
  
  public function getName() {
    return $this->name;
  }

  public function getGender() {
    return $this->gender;
  }
}

?>

stylesheet.css

/* 共通のCSS */
* {
  box-sizing: border-box;
}

html, body,
ul, ol, li,
h1, h2, h3, h4, h5, h6, p,
form, input, div {
  margin: 0;
  padding: 0;
}

body {
  font-family: Lato, 'Hiragino Kaku Gothic Pro', sans-serif;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  font-size: 14px;
  letter-spacing: 0.05em;
  color: #89949e;
}

h2, h3, h4, h5, h6 {
  font-weight: 400;
}

a {
  text-decoration: none;
  color: #4ac0b9;
}

a:hover {
  text-decoration: underline;
}

a:visited {
  color: #4ac0b9;
}

img {
  width: 100%;
}

.container {
  width: 1170px;
  padding-right: 15px;
  padding-left: 15px;
  margin-right: auto;
  margin-left: auto;
}

/* メニュー一覧 */
.logo {
  font-family: Pacifico, sans-serif;
  font-size: 40px;
  color: #4ac0b9;
  display: inline-block;
  padding: 20px 0;
  margin: 80px 0 30px;
  border-top: 5px solid #42c7c1;
  border-bottom: 5px solid #42c7c1;
}

.menu-wrapper {
  margin-bottom: 60px;
  text-align: center;
}

.menu-item-name {
  line-height: 1.7;
  font-size: 25px;
  margin-top: 15px;
  color: #4ac0b9;
}

.menu-item-type {
  font-size: 14px;
}

.price {
  margin: 15px 0;
  font-size: 18px;
  color: #322f33;
}

.menu-items {
  margin-bottom: 60px;
}

.menu-item {
  display: inline-block;
  width: 40%;
  padding: 20px;
  margin-top: 40px;
}

.menu-item-image {
  border-radius: 5px;
}

.icon-spiciness {
  width: 20px;
}

.menu-item span {
  font-size: 16px;
}

input {
  margin-left: 20px;
  margin-right: 10px;
  padding: 5px;
  text-align: center;
  width: 60px;
  font-size: 14px;
  margin-top: 10px;
}

input[type="submit"] {
  display: inline-block;
  width: 160px;
  height: 48px;
  line-height: 48px;
  padding: 0 20px;
  border-radius: 30px;
  border-style: none;
  color: white;
  background-color: #42c7c1;
  font-size: 15px;
  letter-spacing: 0.1em;
}

/* 注文確認 */
.order-wrapper {
  text-align: center;
  background-color: #F8F8F8;
  line-height: 2;
  letter-spacing: 0.1em;
  width: 500px;
  margin: 60px auto;
  padding: 20px 0px 30px;
  border-radius: 5px;
  box-shadow: 0px 1px 4px #CCD7D4;
}

.order-wrapper h2 {
  font-size: 32px;
  margin: 30px 0;
  color: #322f33;
}

.order-wrapper p {
  display: inline-block;
  font-size: 22px;
}

.order-wrapper h3 {
  border-top: 1px solid #DAE1E7;
  margin-top: 30px;
  padding-top: 30px;
  font-size: 28px;
  color: #42c7c1;
}

.order-wrapper h4 {
  margin-top: 40px;
  font-size: 25px;
  color: #322f33;
}

.order-amount {
  width: 40%;
  text-align: left;
}

.order-price {
  width: 35%;
  text-align: right;
}

/* レビュー一覧 */
.review-wrapper {
  text-align: center;
  width: 400px;
  margin: 60px auto;
}

.review-menu-item {
  border-radius: 5px;
  margin: 0 auto;
  padding-bottom: 20px;
  border: 1px solid #dadada;
}

.review-menu-item img {
  border-radius: 5px 5px 0 0;
}

.review-menu-item .menu-item-type {
  color: #c2c8ce;
  font-size: 16px;
}

.review-menu-item .price {
  font-size: 20px;
}

.review-list-wrapper {
  margin: 50px 0;
  text-align: left;
}

.review-list-title {
  padding-bottom: 10px;
  margin-bottom: 30px;
  border-bottom: 1px solid rgba(104, 107, 106, 0.15);
}

.review-list-title h4 {
  font-size: 22px;
}

.review-list-item {
  margin-bottom: 30px;
  background: #e5eef6;
  padding: 10px;
  border-radius: 5px;
}

.review-list-title img, .review-list-title h4, .review-list-item img {
  display: inline-block;
  vertical-align: middle;
}

.icon-review {
  width: 40px;
  margin-right: 10px;
  margin-top: -12px;
}

.icon-user {
  width: 30px;
}

.review-user {
  width: 60px;
  display: inline-block;
  border-right: 1px solid #c1ced7;
  padding-right: 8px;
  text-align: center;
}

.review-text {
  display: inline-block;
  vertical-align: top;
  margin-top: 16px;
  margin-left: 10px;
  font-size: 15px;
}

Cacher is the code snippet organizer for pro developers

We empower you and your team to get more done, faster

PHP学習メモ