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- <!DOCTYPE html>
- <html>
- <head>
- </head>
- <body>
- <?php
- function celsiusToFahrenheit (float $celsius) : float {
- return $celsius * 1.8 + 32;
- }
- function fahrenheitToCelsius (float $fahrenheit) : float {
- return ($fahrenheit - 32) / 1.8;
- }
- $msgAfterCelsius = "";
- if (isset($_GET['cel'])) {
- $cel = floatval($_GET['cel']);
- $fah = celsiusToFahrenheit($cel);
- $msgAfterCelsius = "$cel °C = $fah °F";
- }
- $msgAfterFahrenheit = "";
- if (isset($_GET['fah'])) {
- $fah = floatval($_GET['fah']);
- $cel = fahrenheitToCelsius($fah);
- $msgAfterFahrenheit = "$fah °F = $cel °C";
- }
- ?>
- <form>
- Celsius: <input type="text" name="cel"/>
- <input type="submit" value="Convert"/>
- <?=$msgAfterCelsius?>
- </form>
- <form>
- Fahrenheit: <input type="text" name="fah"/>
- <input type="submit" value="Convert"/>
- <?=$msgAfterFahrenheit?>
- </form>
- </body>
- </html>
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