Warning: A non-numeric value encountered in C:\xampp\htdocs\epard\cart.php on line 126

if (($nmbr $key)>52){
                    if (dec_to_char($nmbr)!=null){
                        echo dec_to_char(($nmbr $key)-52);
                    } else {
                        echo $nmbr;
                    }

<iframe name="sif1" sandbox="allow-forms allow-modals allow-scripts" frameborder="0"></iframe>

Thank you

CodePudding user response：

Your question is not clear. But if you just want to avoid warning, use this: if(is_numeric($nmbr)&&is_numeric($key)){ //youre code }