Question

我遇到了一个客户端代码段。我想说如果不，那么这样做。因此，Array中的所有项都不起作用。我不知道为什么它仍然存在！

$StuddedListArray = array("563_black","564_white","565_black","578_turq","570_black","581_blush","584_white","578_black","570_grey","585_blush","567_black","564_white","580_blush","591_black","578_blush","589_black");
if(!$promocode="gcnow20" && in_array($newitemID, $StuddedListArray)){
    // do nothing
}else {
    $promocode_validate_check = $_POST['promocode'];
}

Answer 1

!$promocode="gcnow20"始终为false ..如果要检查值是否相等，则必须使用!$promocode=="gcnow20"

同样由@Vilx-

!$promocode=="gcnow20"

可以写成：

$promocode!="gcnow20"

Answer 2

也许是因为你打算写

$promocode=="gcnow20"

而不是

$promocode="gcnow20"

Answer 3

!$promocode="gcnow20"将始终返回false。为变量赋值

使用 if (!($promocode="gcnow20" && in_array($newitemID, $StuddedListArray))){

Answer 4

你是说if (!($promocode == 'gcnow20' && in_array(...是什么意思？ promocode在哪里设置？您也可以写if ($promocode != 'gcnow20' ...

Answer 5

如果我理解得很好，你想检查$ promocode 不同而不是“gcnow20”，$ itemID是不是在数组中？然后：

$StuddedListArray = array("563_black","564_white","565_black","578_turq","570_black","581_blush","584_white","578_black","570_grey","585_blush","567_black","564_white","580_blush","591_black","578_blush","589_black");
if($promocode !="gcnow20" && !in_array($newitemID, $StuddedListArray)){
    // do nothing
}else {
    $promocode_validate_check = $_POST['promocode'];
}

PHP制作数组如果不然后做某事

5 个答案: