Example: PHP program to convert the temperature from degree fahrenheit to celsius

C
C++
C#
Java
Python
PHP

<?php
// PHP program to convert the temperature from degree fahrenheit to celsius

$c = NULL;
$f = 7;

// c = celsius
// f = fahrenheit

// Conversion of fahrenheit to celsius
$c = (float)(($f - 32) * 5 / 9);

// Output
printf("\n" . $f . " Fahrenheit = " . $c . " Celsius\n");

?>