<html>
<h2>Kalkulator średniego spalania silnika samochodu po
przejechaniu określonego dystansu przy podaniu ilości zatankowanego paliwa</h2>
<form>
<br>
Przejechany dystans : <br><input type="text" name="dys"></input><br/>
Ilość zatankowanego paliwa : <br><input type="text" name="pal"></input><br/>
<br>
<input type="submit" value="LICZ"></input>
</form>
<?php
if(isset($_GET["dys" && "dys"!=0]) AND isset($_GET["pal" && "pal"!=0])){
$dys = (int)$_GET["dys"];
$pal = (int)$_GET["pal"];
$liczenie = ($pal / $dys)*100;
echo "Spalanie wynosi " . round($liczenie, 2) . " litrów na 100 km <br>";
}
else
echo "BRAK DANYCH WEJŚCIOWYCH";
?>
</html>
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