PHP in_array（）函数始终为true

Question

Fixed! - Thanks to Barmar who's comments nudged me in the right direction. For what it is worth, the revised code is below. I wrapped everything in the in_array conditional instead of it being inside the loop. Thanks for the help, I know I didn't supply much context.

    $skufirst = str_split($product_skucart);


        if(!in_array($skufirst[0], $wildcards))
        {

                if($product_skuall != "")
                {
                    $i=0;

                      foreach($product_skuall as $skuall)
                        {
                            if(strstr($product_skucart,$skuall))
                            {   
                                    $bprice=$base_amountall[$i];
                                    $aprice=$additional_chargeall[$i];
                            }
                            $i++;
                        }

                        array_push($wildcards, $skufirst[0]);
                }

                    $base_amt = $bprice;
                    $additional_charge = $aprice;    
       }

Answer 1

For each product you are always checking for the same condition:

$skufirst = str_split($product_skucart);

You never touch $product_skucart!