https://www.codecademy.com/courses/learn-php/projects/html-php-calculator
i am trying to make it were it will calculator all under one string of code but it is not working
index file
First Number:
First sign:
Second Number:
Add
Divide
Multiply
Calculator
Division
Numerator:
Denominator:
Divide
calculator file
<?="The sum of ${_GET['add_first']} ${_GET['first_sign']} ${_GET['add_second']} is:"?>