php - 变量不会在 foreach 循环中重写

Question

我有这个 php 代码，我很确定它没问题。但是$category 变量没有被重写，即即使$category 是'251'，if 循环也不会执行为真。

任何想法为什么？

foreach($cars->cardata as $cardata ){

    $category = $cardata->categorie;

    if($category == '251'){
        $category = 'BWM';
    }

    echo $category;
}

Answer 1

foreach($cars->cardata as $cardata ){

    $category = $cardata->categorie;

    if(trim($category) == '251'){
        $category = 'BWM';
    }

    echo $category;
}