Question

我的API返回如下：

$arrays = array(
   "1" => array(
       "name" => "Mike",
       "date" => "1/2/2016",
       "criterion" => array(
            "1" => array(
                    "label"  => "Value for Money",
                    "scores" => "5"
                ),
            "2" => array(
                    "label" => "Policy Features And Benefits",
                    "scores" => "1.5"
                ),
            "3" => array(
                    "label" => "Customer Service",
                    "scores" => "3"
                )

        )
   ),
   "2" => array(
       "name" => "Megu",
       "date" => "1/2/2015",
       "criterion" => array(
            "1" => array(
                    "label"  => "Value for Money",
                    "scores" => "2"
                ),
            "2" => array(
                    "label" => "Policy Features And Benefits",
                    "scores" => "3.5"
                ),
            "3" => array(
                    "label" => "Customer Service",
                    "scores" => "1"
                )

        )
   )
);

和PHP代码：

$output = '';
$output_criterion = '';

foreach($arrays as $a){

    $criterions_arr = $a['criterion'];
    foreach($criterions_arr as $c){
        $output_criterion .= $c['label'] . ' - ' . $c['scores'] . '<br/>';
    }

    $output .= $a['name'] . '<br/>' . $output_criterion . '<br/>';

}

echo $output;

结果：

Mike
Value for Money - 5
Policy Features And Benefits - 1.5
Customer Service - 3

Megu
Value for Money - 5
Policy Features And Benefits - 1.5
Customer Service - 3
Value for Money - 2
Policy Features And Benefits - 3.5
Customer Service - 1

但是我希望结果如下所示，而不会在嵌套的foreach循环中重叠：

Mike
Value for Money - 5
Policy Features And Benefits - 1.5
Customer Service - 3

Megu
Value for Money - 2
Policy Features And Benefits - 3.5
Customer Service - 1

我怎么能这样做，我使用array_unique，但它似乎只适用于＆＃39;标签＆＃39;不是＆＃39;得分＆＃39;。

先谢谢

Answer 1

在每个外部迭代中重置变量$output_criterion。它连接所有以前的值。

$output = '';
foreach($arrays as $a){
    $output_criterion = '';
    $criterions_arr = $a['criterion'];
    foreach($criterions_arr as $c){
        $output_criterion .= $c['label'] . ' - ' . $c['scores'] . '<br/>';
    }
    $output .= $a['name'] . '<br/>' . $output_criterion . '<br/>';
}
echo $output;

添加实时演示：https://eval.in/608400

Answer 2

只需将$ output_criterion移动到第一个foreach循环中，如下所示：

npm

PHP - foreach重叠问题

2 个答案: