PHP - 분기 , 반복

<?PHP

//
// 분기
//
	$mood = "sad-";
	
	// switch --------------------------------------
	switch ($mood){
	case "happy":
		echo "난 행복해";
		break;
	case "sad":
		echo "난 불행해";
		break;
	default:
		echo "난 아무렇지 않아";	
		break;
	}
	echo "<br><br>";

	
	// if --------------------------------------
	if ($mood == "happy"){
		echo "다른사람에게도 행복을 전해주세요~";
	}else{
		echo "행복해지려면 웃어보아요~";
	}
	echo "<br><br>";
	
	
	// ?: --------------------------------------
	echo ($mood == "happy") ? "행복바이러스~ ㅋㅋ" : "불행타파!!";





//
// 반복
//
	$counter = 1;

	echo "## 12까지 숫자카운트 <br>";
	while ($counter <= 12){
		echo ($counter++ . "/ ");
	}
	echo "<br>";
	echo "<br>";



	$counter = 1;
	echo "## 12까지 숫자카운트 <br>";
	do {
		echo ($counter++ . "/ ");
	} while ($counter <= 12);
	echo "<br>";




	do {
		if (탈출=='ok') break;
	} while (1)





	for($i=1; $i<=12; $i++) {
		echo "i=$i <br> \n";
	}


	
	foreach($arr as $i => $v){ 
		echo "$i = $v <br>";	//$i = 숫자 , $v = 값
	}

	
	$arrays=array(	"sample1.php", "sample11.php", "sample21.php", 
					"sample2.php", "sample12.php", "sample22.php", 
                    "sample3.php", "sample13.php", "sample23.php");
	natsort($arrays);
	foreach ($arrays as $v) 
	{
		print $v."<br>";	//값 출력
	}


?>