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- <html>
- <head>
- <meta http-equiv="Content-Type" content="text/html: charset=utf-8"/>
- <title>esten ob eine Zahl eine Fibonaccizahl ist.</title>
- <link rel="stylesheet" href="pruefung.css">
- </head>
- <body>
- <div id="main">
- <h1>Ergebnis:</h1>
- <?php
- if(isset($_POST["testzahl"])) {
- $num = $_POST ["testzahl"];
- if(is_numeric(num)) {
- $fibTemp = 0;
- $fib1 = 1;
- $fib2 = 1;
- $isFibo = false;
- while($num >= $fib2) {
- if($num == $fib2) {
- $isFibo = true;
- break;
- }
- $fibTemp = fib2;
- $fib2 += fib1;
- $fib1 = fibTemp;
- }
- if($isFibo) {
- echo $testzahl .. "ist eine Fibonaccizahl";
- } else {
- echo $testzahl . "ist keine Fibonazzizahl";
- }
- } else {
- alert("Number is not a number!");
- }
- } else {
- echo "No number POSTED"
- }
- ?>
- </div>
- </body>
- </html>
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