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Predefined Interfaces
PHPerKaigi
202 2
LT
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M&A CTO
M&A
6 🙏
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Web Laravel
3/28 Laravel
Queue
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Predefined Interfaces
Interface
Interface
class interface
interface A {
public function a();
}
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Predefined Interfaces
Interface
Interface
Iterable
Cacheable Renderable
interface Speakable {
// Ͳ͏ΕΔ͔͔Βͳ͍͕ΕΔ
public function speak();
}
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Predefined Interfaces
Interface
interface Speakable {
// Ͳ͏ΕΔ͔͔Βͳ͍͕ΕΔ
public function speak();
}
class Japanese implements Speakable {
public function speak()
{
echo "͜Μʹͪ";
}
}
class American implements Speakable {
public function speak()
{
echo "Hello";
}
}
Interface
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Predefined Interfaces
Predefined Interfaces
PHP PHP
PHP
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Predefined Interfaces
Predefined Interfaces
Traversable Interface foreach
Throwable Throwable throw
Error Exception
Stringable Interface
print echo
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Predefined Interfaces
PHP
Traversable
Iterator
IterotorAggregate
Throwable
ArrayAccess
Countable
Stringable
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Predefined Interfaces
Predefined Interface
Stringable(PHP
8
)
(__toString() )
class Book implements Stringable {
public function __construct(private string $name, private int $price, private bool $isNew = false)
{}
public function __toString()
{
return $this->name . " : " . $this->price . "ԁ" . ($this->isNew ? " ৽ൃച" : "");
}
}
echo new Book(name: 'ϓϩϑΣογϣφϧWebϓϩάϥϛϯά Laravelʪ࠷৽Laravel 9ରԠʫ', price: 3520, isNew: true);
~/Project/predefined-interface
▶ php iterator.php
ϓϩϑΣογϣφϧWebϓϩάϥϛϯά Laravelʪ࠷৽Laravel 9ରԠʫ : 3520ԁ ৽ൃച
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Predefined Interfaces
Predefined Interface
Iterator Traversal foreach
Iterator Traversal
class BookShelf implements Iterator {
private int $position = 0;
public function __construct(private array $books)
{}
public function current()
{
return $this->books[$this->position];
}
public function next()
{
++$this->position;
}
public function key()
{
return $this->position;
}
public function valid()
{
return isset($this->books[$this->position]);
}
public function rewind()
{
$this->position = 0;
}
}
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Predefined Interfaces
Predefined Interface
Iterator Traversal foreach
$books = [
new Book(name: 'PHPϑϨʔϜϫʔΫ Laravel WebΞϓϦέʔγϣϯ։ൃ όʔδϣϯ5.5 LTSରԠ', price: 4180),
new Book(name: 'ΈΜͳͷPHPɹݱͰཱͭ࠷৽ϊϋʂ', price: 2398)
];
$boolShelf = new BookShelf($books);
foreach ($boolShelf as $book) {
print($book);
print("\n");
}
~/Project/predefined-interface
▶ php iterator.php
PHPϑϨʔϜϫʔΫ Laravel WebΞϓϦέʔγϣϯ։ൃ όʔδϣϯ5.5 LTSରԠ : 4180ԁ
ΈΜͳͷPHPɹݱͰཱͭ࠷৽ϊϋʂ : 2398ԁ
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Predefined Interfaces
Predefined Interface
class BookShelf implements Iterator {
… ུ …
public function addNewArrival(string $name, int $price)
{
$this->books[] = new Book($name, $price, isNew: true);
}
}
$books = [
new Book(name: 'PHPϑϨʔϜϫʔΫ Laravel WebΞϓϦέʔγϣϯ։ൃ όʔδϣϯ5.5 LTSରԠ', price: 4180),
new Book(name: 'ΈΜͳͷPHPɹݱͰཱͭ࠷৽ϊϋʂ', price: 2398)
];
$boolShelf = new BookShelf($books);
$boolShelf->addNewArrival(name: 'ϓϩϑΣογϣφϧWebϓϩάϥϛϯά Laravelʪ࠷৽Laravel 9ରԠʫ', price: 3520);
foreach ($boolShelf as $book) {
print($book);
print("\n");
}
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Predefined Interfaces
Predefined Interface
~/Project/predefined-interface
▶ php iterator.php
PHPϑϨʔϜϫʔΫ Laravel WebΞϓϦέʔγϣϯ։ൃ όʔδϣϯ5.5 LTSରԠ : 4180ԁ
ΈΜͳͷPHPɹݱͰཱͭ࠷৽ϊϋʂ : 2398ԁ
ϓϩϑΣογϣφϧWebϓϩάϥϛϯά Laravelʪ࠷৽Laravel 9ରԠʫ : 3520ԁ ৽ൃച
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Predefined Interfaces
Predefined Interface
echo print throw foreach
string string string->toJapanese();