PHP数组未使用JSON正确格式化_Php_Arrays

PHP数组未使用JSON正确格式化

php arrays

PHP数组未使用JSON正确格式化,php,arrays,Php,Arrays,我已经生成了一个函数，它将遍历数据库表中的记录，并将它们转换为数组以供进一步使用 public function cycleCount() { global $db; $selectProducts = $db->query("SELECT * FROM stockroom_products"); $results = array("catA", "catB", "catC"); while($row = $db->assoc($selectPr

我已经生成了一个函数，它将遍历数据库表中的记录，并将它们转换为数组以供进一步使用

public function cycleCount()
{
    global $db;

    $selectProducts = $db->query("SELECT * FROM stockroom_products");

    $results = array("catA", "catB", "catC");

    while($row = $db->assoc($selectProducts))
    {
        if($row['Product_PRICE'] >= 10)
        {
            array_push($results, "catA", $row['ID']);
        }
        else if ($row['Product_PRICE'] >= 5 AND $row['Product_PRICE'] < 10) 
        {
            array_push($results, "catB", $row['ID']);
        }
        else if ($row['Product_PRICE'] > 0 AND $row['Product_PRICE'] < 5)
        {
            array_push($results, "catC", $row['ID']);
        }


        $json_data = json_encode($results);
        //echo $json_data;

        echo $json_data;

    }

}

目前它是这样做的

["catA","catB","catC","catB","1"]["catA","catB","catC","catB","1","catC","2"]["catA","catB","catC","catB","1","catC","2","catC","3"]["catA","catB","catC","catB","1","catC","2","catC","3","catC","4"]["catA","catB","catC","catB","1","catC","2","catC","3","catC","4","catA","5"]["catA","catB","catC","catB","1","catC","2","catC","3","catC","4","catA","5","catC","6"]["catA","catB","catC","catB","1","catC","2","catC","3","catC","4","catA","5","catC","6","catC","9"]["catA","catB","catC","catB","1","catC","2","catC","3","catC","4","catA","5","catC","6","catC","9","catA","10"]["catA","catB","catC","catB","1","catC","2","catC","3","catC","4","catA","5","catC","6","catC","9","catA","10","catC","11"]["catA","catB","catC","catB","1","catC","2","catC","3","catC","4","catA","5","catC","6","catC","9","catA","10","catC","11","catC","12"]["catA","catB","catC","catB","1","catC","2","catC","3","catC","4","catA","5","catC","6","catC","9","catA","10","catC","11","catC","12","catC","13"]["catA","catB","catC","catB","1","catC","2","catC","3","catC","4","catA","5","catC","6","catC","9","catA","10","catC","11","catC","12","catC","13","catA","14"]["catA","catB","catC","catB","1","catC","2","catC","3","catC","4","catA","5","catC","6","catC","9","catA","10","catC","11","catC","12","catC","13","catA","14","catA","16"]["catA","catB","catC","catB","1","catC","2","catC","3","catC","4","catA","5","catC","6","catC","9","catA","10","catC","11","catC","12","catC","13","catA","14","catA","16","catB","17"]["catA","catB","catC","catB","1","catC","2","catC","3","catC","4","catA","5","catC","6","catC","9","catA","10","catC","11","catC","12","catC","13","catA","14","catA","16","catB","17","catA","18"]["catA","catB","catC","catB","1","catC","2","catC","3","catC","4","catA","5","catC","6","catC","9","catA","10","catC","11","catC","12","catC","13","catA","14","catA","16","catB","17","catA","18","catA","19"]["catA","catB","catC","catB","1","catC","2","catC","3","catC","4","catA","5","catC","6","catC","9","catA","10","catC","11","catC","12","catC","13","catA","14","catA","16","catB","17","catA","18","catA","19","catB","20"]["catA","catB","catC","catB","1","catC","2","catC","3","catC","4","catA","5","catC","6","catC","9","catA","10","catC","11","catC","12","catC","13","catA","14","catA","16","catB","17","catA","18","catA","19","catB","20","catB","21"]

您正在将值推送到一个无效的字符串

请尝试这样定义结果数组：

$result=array（“catA”=>array（），“catB”=>array（），“catC”=>array（））
这将得到嵌套数组，从而得到所需的结果。
还可以使用array_push（$result['catA']，$row['ID']）
而不是array\u push（$reuslt，'catA'，$row[ID']）

正如@u_mulder正确指出的那样，json应该在while循环之后得到响应
 您正在将值推送到一个无效的字符串
请尝试这样定义结果数组：
$result=array（“catA”=>array（），“catB”=>array（），“catC”=>array（））
这将得到嵌套数组，从而得到所需的结果。
还可以使用array_push（$result['catA']，$row['ID']）
而不是array\u push（$reuslt，'catA'，$row[ID']）

正如@u_mulder正确指出的那样，json应该在while循环之后得到响应
 array\u push
根据文档，不作为第二个参数键入：
您应该这样做：
$results = array("catA" => [], "catB" => [], "catC" => []);
if($row['Product_PRICE'] >= 10)
{
    $results["catA"][] = $row['ID'];
}
else if ($row['Product_PRICE'] >= 5 AND $row['Product_PRICE'] < 10) 
{
    $results["catB"][] = $row['ID'];
}
else if ($row['Product_PRICE'] > 0 AND $row['Product_PRICE'] < 5)
{
    $results["catC"][] = $row['ID'];
}

$results=array（“catA”=>[]，“catB”=>[]，“catC”=>[]）；
如果（$row['Product_PRICE']>=10）
{
$results[“catA”][]=$row['ID']；
}
如果（$row['Product\U PRICE']>=5和$row['Product\U PRICE']<10）
{
$results[“catB”][]=$row['ID']；
}
如果（$row['Product\U PRICE']>0和$row['Product\U PRICE']<5）
{
$results[“catC”][]=$row['ID']；
}

这对您有用吗？
数组\u push
根据文档不作为第二个参数输入：
您应该这样做：
$results = array("catA" => [], "catB" => [], "catC" => []);
if($row['Product_PRICE'] >= 10)
{
    $results["catA"][] = $row['ID'];
}
else if ($row['Product_PRICE'] >= 5 AND $row['Product_PRICE'] < 10) 
{
    $results["catB"][] = $row['ID'];
}
else if ($row['Product_PRICE'] > 0 AND $row['Product_PRICE'] < 5)
{
    $results["catC"][] = $row['ID'];
}

$results=array（“catA”=>[]，“catB”=>[]，“catC”=>[]）；
如果（$row['Product_PRICE']>=10）
{
$results[“catA”][]=$row['ID']；
}
如果（$row['Product\U PRICE']>=5和$row['Product\U PRICE']<10）
{
$results[“catB”][]=$row['ID']；
}
如果（$row['Product\U PRICE']>0和$row['Product\U PRICE']<5）
{
$results[“catC”][]=$row['ID']；
}

这对你有用吗？
试试看
      piblic  function cycleCount(){
    global $db;

    $selectProducts = $db->query("SELECT * FROM stockroom_products");
    $catA =array();
    $catB =array();
    $catC =array();
    $results = array();

    while($row = $db->assoc($selectProducts))
    {
        if($row['Product_PRICE'] >= 10)
        {
             array_push($catA,array('catA' =>$row['ID']));
        }
        else if ($row['Product_PRICE'] >= 5 AND $row['Product_PRICE'] < 10) 
        {
            array_push($catB,array('catB' =>$row['ID']));

        }
        else if ($row['Product_PRICE'] > 0 AND $row['Product_PRICE'] < 5)
        {

            array_push($catC,array('catC' =>$row['ID']));

        }


        $json_data = json_encode($results);
        //echo $json_data;

        echo $json_data;

    }
    $results=array($catA,$catB,$catC);
    print_r($results);
}
?>

piblic函数cycleCount（）{
全球$db；
$selectProducts=$db->query（“从库存_产品中选择*）；
$catA=array（）；
$catB=array（）；
$catC=array（）；
$results=array（）；
而（$row=$db->assoc（$selectProducts））
{
如果（$row['Product_PRICE']>=10）
{
数组推送（$catA，array（'catA'=>$row['ID']）；
}
如果（$row['Product\U PRICE']>=5和$row['Product\U PRICE']<10）
{
数组推送（$catB，数组（'catB'=>$row['ID']）；
}
如果（$row['Product\U PRICE']>0和$row['Product\U PRICE']<5）
{
数组推送（$catC，数组（'catC'=>$row['ID']）；
}
$json_data=json_encode（$results）；
//echo$json_数据；
echo$json_数据；
}
$results=阵列（$catA、$catB、$catC）；
打印（结果）；
}
?>
试试看
      piblic  function cycleCount(){
    global $db;

    $selectProducts = $db->query("SELECT * FROM stockroom_products");
    $catA =array();
    $catB =array();
    $catC =array();
    $results = array();

    while($row = $db->assoc($selectProducts))
    {
        if($row['Product_PRICE'] >= 10)
        {
             array_push($catA,array('catA' =>$row['ID']));
        }
        else if ($row['Product_PRICE'] >= 5 AND $row['Product_PRICE'] < 10) 
        {
            array_push($catB,array('catB' =>$row['ID']));

        }
        else if ($row['Product_PRICE'] > 0 AND $row['Product_PRICE'] < 5)
        {

            array_push($catC,array('catC' =>$row['ID']));

        }


        $json_data = json_encode($results);
        //echo $json_data;

        echo $json_data;

    }
    $results=array($catA,$catB,$catC);
    print_r($results);
}
?>

piblic函数cycleCount（）{
全球$db；
$selectProducts=$db->query（“从库存_产品中选择*）；
$catA=array（）；
$catB=array（）；
$catC=array（）；
$results=array（）；
而（$row=$db->assoc（$selectProducts））
{
如果（$row['Product_PRICE']>=10）
{
数组推送（$catA，array（'catA'=>$row['ID']）；
}
如果（$row['Product\U PRICE']>=5和$row['Product\U PRICE']<10）
{
数组推送（$catB，数组（'catB'=>$row['ID']）；
}
如果（$row['Product\U PRICE']>0和$row['Product\U PRICE']<5）
{
数组推送（$catC，数组（'catC'=>$row['ID']）；
}
$json_data=json_encode（$results）；
//echo$json_数据；
echo$json_数据；
}
$results=阵列（$catA、$catB、$catC）；
打印（结果）；
}
?>
我想catC
（和catA
）应该是键？你也可以在循环后执行json\u编码和echo
，而不是在循环内。我想catC
（和catA
）应该是键吗？你应该在while
-循环后执行json\u encode
和echo
，而不是在循环内。你应该使用[]
而不是array\u push
-更易于阅读还应该提到，在while之后应该执行回显json-loop@Philipp您只能使用[]如果您有一个键和一个值，则不使用array_push。由于此示例只有一个值，您需要将其推送到数组中。当我这样做时，我会得到一个白色屏幕，没有任何内容是回音。您可以在while循环后编码/回音吗？您应该使用而不是数组\u push
-更具可读性还提到应在while之后进行json回显-loop@Philipp如果有一个键和一个值，则只能使用[]而不是array_push。因为这个例子只有一个值，你需要把它推到数组上。当我这样做的时候，我得到的是一个白色的屏幕，没有任何东西是回音。你敢在while循环之后编码/回音吗？还要提到回音json应该在while循环之后进行。当我在while循环之后移动回音时，它只显示一条记录，当我在上面这样做时，它会回音{“catA”：[]，“catB”：[“1”]，“catC”：[]{“catA”：[]，“catB”：[]，“catC”：[“2”]}{“catA”：[]，“catB”：[]，“catC”：[“3”]}{“catA”：[]，“catB”：[]，“catC”：[“4”}{“catA”：[“5”，“catB”：[]，“catC”：[]，“catC”：[]{“catA”：[]，“catB”：这不是你想要的吗？这是我的代码的一个例子：foreach
模拟了你的while
循环所做的事情，还提到了在while循环之后应该做回显json。当我在while循环之后移动回显时，它只显示一条记录，当我在上面这样做时，它回显这个{“catA”：[]，“catB”：[“1”，“catC”：[]}{“catA”：[]，”catB:[]，“catC:[“2”]}{“catA:[]，“catB:[]，“catC:[“3”]}{“catA:[]，“catB”