<!DOCTYPE HTML>
<html lang="ja-JP">
<head>
<meta charset="UTF-8">
<title></title>
</head>
<body>
<?php
$unber_construction = TRUE;
if($unber_construction == TRUE){
echo "<p>工事中です";
}
$result = FALSE;
if(!$result){
echo "<p>FALSEです";
}
$number = 100;
$result = ($number >= 80) ? "合格" : "不合格";
echo "<p>結果：".$result;
?>
</body>
</html>