在php7中,匿名類現在可以使用 new class 來定義。匿名類可以使用來代替完整的類定義。
示例
<?php
interface Logger {
public function log(string $msg);
}
class Application {
private $logger;
public function getLogger(): Logger {
return $this->logger;
}
public function setLogger(Logger $logger) {
$this->logger = $logger;
}
}
$app = new Application;
$app->setLogger(new class implements Logger {
public function log(string $msg) {
print($msg);
}
});
$app->getLogger()->log("My first Log Message");
?>
這將在流覽器產生輸出以下結果-
My first Log Message
上一篇:
PHP7常量數組
下一篇:
PHP7 Closure::call()
