magic method

[PHP] : magic method

phpのマジックメソッドについて挙動を確認してみました。
とりあえずは代表的なもののみをピックアップ。

<?php


class MagicMethod {

private $data_ = array();

public function __construct() {
    echo “call construct \n”;
}

public function __destruct() {
    echo “call destruct \n”;
}

public function __get( $key ) {
    echo “call _get \n”;
    return $this->data[ $key ];
}

public function _set( $key, $name ) {
    $this->data[ $key ] = $name;
    echo “call __set \n”;
}

public function toString() {
    return CLASS__;
}

public function __call( $name, $arguments ) {
    $arg = implode( “,” , $arguments );
    echo “call func class = $name  arg = $arg \n”;
}

}

//__construct
$magic = new MagicMethod();

//__call
$magic->magic( ‘test’, array( ‘arg1’, ‘arg2’ ) );

//__set
$magic->key = ‘test’;

// __get
echo $magic->key . “\n”;

//__toString
echo $magic . “\n”;

//__destruct
unset( $magic );

echo “process is finished \n”;

以下は出力結果です。

call construct
call func class = magic  arg = test,Array
call __set
call __get
test
MagicMethod
call destruct
process is finished 

abstract static宣言

abstract staticの宣言がphpで出来ます。継承した子クラスでもstaticで呼び出すことが出来ます。

<?php


abstract class hoge {
abstract static function foo ();
}

class fuga extends hoge {
static public function foo() {
echo “Foo \n”;
}

}

fuga::foo();