Fatal error: Uncaught TypeError: Unsupported operand types: string - string in /home/siboomit/public_html/AMP/product.php:124
Stack trace:
#0 [internal function]: priceC(Array, Array)
#1 /home/siboomit/public_html/AMP/product.php(127): usort(Array, 'priceC')
#2 {main}
thrown in /home/siboomit/public_html/AMP/product.php on line 124