Programming Fundamentals/Variables/PHP

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variables.php[edit]

<?php

// This program converts a Fahrenheit temperature to Celsius.
//
// References:
//     https://www.mathsisfun.com/temperature-conversion.html
//     https://en.wikibooks.org/wiki/PHP_Programming

echo "Enter Fahrenheit temperature:\n";
$f = readline();

$c = ($f - 32) * 5 / 9;

echo $f . "° Fahrenheit is " . $c . "° Celsius\n";

?>

Try It[edit]

Copy and paste the code above into one of the following free online development environments or use your own PHP compiler / interpreter / IDE.

See Also[edit]