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56
progp/24-11-6 - Schleifen/schleifen.php
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56
progp/24-11-6 - Schleifen/schleifen.php
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<!DOCTYPE html
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Document</title>
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</head>
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<body>
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<h1>Kontrollstrukturen: Schleifen</h1>
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<?php
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echo "<h2>For-Schleife (kopfgesteuerte Schleifen)</h2>";
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// for(Startwert, Wiederholbedingung (mit Endwert), Schrittweite)
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for ($i = 0; $i < 10; $i++) { // Schleifen Kopf
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echo "Zahl: $i<br>"; // Schleifen Rumpf
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}
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echo "========================<br>";
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for ($i = 10; $i >= 0; $i--) {
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echo "Zahl: $i<br>";
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}
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echo "========================<br>";
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for ($i = 0; $i < 10; $i += 20) {
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echo "Zahl: $i<br>";
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}
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echo "<h2>While-Schleifen (kopfgesteuerte Schleifen)</h2>";
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$i = 1; // Startwert
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while($i <= 10) { // Schleifen Kopf mit Wiederholbedingung(Endwert)
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echo "Zahl: $i<br>"; // <- Schleifen Rumpf
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$i++; // Schrittweite
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}
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echo "========================<br>";
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$i = 10;
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while ($i >= 1) {
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echo "Zahl: $i<br>";
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$i--;
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}
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echo "========================<br>";
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$i = -100;
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while ($i <= 100) {
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echo "Zahl: $i<br>";
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$i+=20;
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}
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?>
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</body>
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</html>
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