symfony php查询结果相乘

我是symfony的新手，我正在尝试构建一个如下所示的阵列：

['10'=>100，'100'=>40，'200'=>10，'reis'=>1]

数据显然来自我的数据库，因此我的查询如下：

$chances = $conn->fetchAll("SELECT * FROM prices");

这将生成一个包含以下对象的数组：

[{"id":"1","price":"10","amount":"1000","chance":"0,5"},
{"id":"2","price":"100","amount":"100","chance":"0,2"},
{"id":"3","price":"200","amount":"10","chance":"0,05"},
{"id":"4","price":"reis","amount":"1","chance":"0,005"},
{"id":"5","price":"noprice","amount":"0","chance":"0,245"}]

现在我需要将几率乘以200并填充我的数组，我这样做：

foreach ($chances as $chance){
  $p = $chance['price'];
  $c = (200 * $chance['chance']);
  $chancesArr[] = array($p => $c);
}

但由于某些原因，我得到的结果总是0

有人知道为什么乘法不起作用吗

我还有一个小问题，$chancesArr是一个多维数组，但它应该是一个带键的数组，因为$p和值是$c

我的结果是：

[{“10”：0}，{“100”：0}，{“200”：0}，{“reis”：0}]

我的目标是：

['10'=>100，'100'=>40，'200'=>10，'reis'=>1]

任何帮助都将不胜感激

---

非常感谢

我认为这是因为数字上的逗号，试着用点来代替逗号

$chances = '[{"id":"1","price":"10","amount":"1000","chance":"0,5"},
{"id":"2","price":"100","amount":"100","chance":"0,2"},
{"id":"3","price":"200","amount":"10","chance":"0,05"},
{"id":"4","price":"reis","amount":"1","chance":"0,005"},
{"id":"5","price":"noprice","amount":"0","chance":"0,245"}]';

$chances = json_decode($chances, true);

foreach ($chances as $chance){
    $p = $chance['price'];
    $c = 200 * str_replace(',', '.', $chance['chance']);
    $chancesArr[$p] = $c;
}

echo json_encode($chancesArr);

---

输出：

{“10”：100，“100”：40，“200”：10，“reis”：1，“noprice”：49}

我认为这是因为数字中的逗号，尝试用点替换逗号

$chances = '[{"id":"1","price":"10","amount":"1000","chance":"0,5"},
{"id":"2","price":"100","amount":"100","chance":"0,2"},
{"id":"3","price":"200","amount":"10","chance":"0,05"},
{"id":"4","price":"reis","amount":"1","chance":"0,005"},
{"id":"5","price":"noprice","amount":"0","chance":"0,245"}]';

$chances = json_decode($chances, true);

foreach ($chances as $chance){
    $p = $chance['price'];
    $c = 200 * str_replace(',', '.', $chance['chance']);
    $chancesArr[$p] = $c;
}

echo json_encode($chancesArr);

---

输出：

{10:100,100:40,200:10,reis:1,noprice:49}

您说得对，先生！如果我的结果不是一个包含对象的数组，你知道我如何生成1个数组吗？嘿，我知道你在做什么，但由于某种原因，我得到了0 1 2 reis而不是10 100 200 reis。这很奇怪，我已经输入了完整的代码，我的服务器上的一切都很好。我很抱歉，我只是有点愚蠢，做错了什么！对不起，你说得对，先生！如果我的结果不是一个包含对象的数组，你知道我如何生成1个数组吗？嘿，我知道你在做什么，但由于某种原因，我得到了0 1 2 reis而不是10 100 200 reis。这很奇怪，我已经输入了完整的代码，我的服务器上的一切都很好。我很抱歉，我只是有点愚蠢，做错了什么！我道歉