I am using PHP. I need to create a FOR loop to display all values of celsius starting from -40 to loop to 100. But I also need to use the same for loop to convert all of those values into Fahrenheit, how can I fix this?

This is my code so far:

"; } $convert = 9.0/5.0*$i+ 32; ?>

Celsius	Fahrenheit
$i°

example output:

Fahrenheit Celsius -40 -30 -20 -40 -22 -4 -10 14 0 320 50 10 20 30 40 50 60 70 80 90 100 68 86 104 122 140 158 176 194 212