<?php 
echo "／／/////////////////////////////////////////// <br/>";
echo "／／物件變數 <br/>";
echo "class 名稱{....} <br/>";
echo "member： public \$a1; 公有成員<br/>";
echo "member： var \$a1; 公有成員（就是public）<br/>";
echo "member： private \$a1;私有成員（只能被其定義的類別存取）<br/>";
echo "method： public function show(){....}<br/>";
echo "method： public可以省略{<br/>";
echo "method： 給定起始值：建構子函數：function __construct(\$a1='',\$a2=0,\$a3=0){...』<br/>";
echo "method： 建構子函數，若要能夠允許沒有給定起始值的宣告，必須給定預設值，例如\$a1='',\$a2=0 <br/>";
echo "method： 解構子函數，釋放物件變數：function __destruct(){\$this->name = NULL;} <br/>";
echo "method： 設定member變數值，\$this->name = \$a1<br/>";
echo "宣告物件變數：\$my = new phone()<br/>";
echo "使用物件method: \$my->show()<br/>";
echo "釋放物件變數：\$my = NULL;<br/>";

echo "<br/><br/>";
//////標準寫法/////////////////////////////////////////////
class phone{
	var $name;
	public $price;
	public $num;
	public function __construct($a1="",$a2=0,$a3=0){
		$this->name = $a1;
		$this->price = $a2;
		$this->num = $a3;	
	}
	public function __destruct(){
		$this->name = NULL;
		$this->price = NULL;
		$this->num = NULL;	
		echo "<br/>宣告的物件變數已經被釋放了";
	}		
	public function show(){
		echo "你要購買的手機是".$this->name."，數量是".$this->num."，單價為".$this->price;
	}	
}

//////////////////////////////////////////////////
$myp1 = new phone();
$myp1->name = "iphoneX手機";
$myp1->price = 35000;
$myp1->num = 2;
$myp1->show();

echo "<br/><br/>";
$myp2 = new phone('Samsung Galaxy Note 8手機',30000,5);
$myp2->show();



echo "<br/><br/>";
$myp1 = NULL;
$myp2 = NULL;


echo "<br/><br/>";
echo "／／/////////////////////////////////////////// <br/>";
echo "／／物件變數的比較 ==， === <br/>";
echo "兩個物件變數宣告內容一樣，兩種符合（==），但是還是兩個物件（不符合===) <br/>";
echo "讓物件2=物件1,則兩者（符合===)（符合==) <br/>";
/////////////////////////////////////////////////////////////
$myp4 = new phone('Samsung Galaxy Note 8手機',30000,5);

$myp5 = new phone('Samsung Galaxy Note 8手機',30000,5);

$myp6 = $myp5;
///４－５//////////////////////////////////
if($myp4==$myp5)echo "＄ｍｙｐ４ ＝＝　＄ｍｙｐ５ <br/>";
else echo "＄ｍｙｐ４ ！＝　＄ｍｙｐ５ <br/>";
if($myp4===$myp5)echo "＄ｍｙｐ４ ＝＝＝　＄ｍｙｐ５ <br/>";
else echo "＄ｍｙｐ４ ！＝＝　＄ｍｙｐ５ <br/>";

echo "<br/><br/>";
//５－６///////////////////////////////////
if($myp6==$myp5)echo "＄ｍｙｐ６ ＝＝　＄ｍｙｐ５ <br/>";
else echo "＄ｍｙｐ６ ！＝　＄ｍｙｐ５ <br/>";
if($myp6===$myp5)echo "＄ｍｙｐ６ ＝＝＝　＄ｍｙｐ５ <br/> <br/>";
else echo "＄ｍｙｐ６ ！＝＝　＄ｍｙｐ５ <br/>";


?>