Question

我在我的$string 对象数组中，我希望动态获取每一行的所有元素数组，因为我知道我不知道元素是怎样的。进入那个字符串，现在我有 4个主菜，也许在我得到2或10之后，以及如何为每个密钥检索数据。

我的尝试：

var_dump($string) = 

array(4) {
  ["_1514316350293_293"] => array(4) {
    ["customer_group"] => string(1) "3"
    ["condition"] => string(1) "2"
    ["somme"] => string(6) "500.00"
    ["price"] => string(4) "0.00"
  }
  ["_1514316394524_524"] => array(4) {
    ["customer_group"] => string(1) "2"
    ["condition"] => string(1) "2"
    ["somme"] => string(6) "500.00"
    ["price"] => string(4) "0.00"
  }
  ["_1514316395828_828"] => array(4) {
    ["customer_group"] => string(1) "3"
    ["condition"] => string(1) "1"
    ["somme"] => string(6) "500.00"
    ["price"] => string(5) "29.40"
  }
  ["_1514316396756_756"] => array(4) {
    ["customer_group"] => string(1) "2"
    ["condition"] => string(1) "1"
    ["somme"] => string(6) "500.00"
    ["price"] => string(5) "29.40"
  }
}

foreach($string as $key=>$value){
    var_dump($value);
}

result=
  array(4) {
  ["customer_group"] => string(1) "3"
  ["condition"] => string(1) "2"
  ["somme"] => string(6) "500.00"
  ["price"] => string(4) "0.00"
}

array(4) {
  ["customer_group"] => string(1) "2"
  ["condition"] => string(1) "2"
  ["somme"] => string(6) "500.00"
  ["price"] => string(4) "0.00"
}

array(4) {
  ["customer_group"] => string(1) "3"
  ["condition"] => string(1) "1"
  ["somme"] => string(6) "500.00"
  ["price"] => string(5) "29.40"
}

array(4) {
  ["customer_group"] => string(1) "2"
  ["condition"] => string(1) "1"
  ["somme"] => string(6) "500.00"
  ["price"] => string(5) "29.40"
}

我想念得到我需要的小小的决定

Answer 1

您可以尝试array_values功能

var_dump( array_values( $string ) );

它将打印数组中的所有值

如果您想获得特定记录

$rows = array_values( $string );
var_dump( $rows[2] );

Answer 2

即使 你不知道子阵列的长度，它是关联的还是数字的 ，那么你也可以获得如下所有的值： -

foreach($string as $key=>$value){
    $keys = array_keys($value);
    foreach($keys as $key){
      echo $value[$key].PHP_EOL;
    }
}

输出： - https://eval.in/925895

<强> 或者： -

foreach($string as $key=>$value){
    $values = array_values($value);
    foreach($values as $value){
      echo $value.PHP_EOL;
    }
}

输出： - https://eval.in/925897

检查条件如下： -

foreach($string as $key=>$value){
  $keys = array_keys($value);
  if (in_array('customer_group',$keys) && $value['customer_group'] == 3 && in_array('condition',$keys) && $value['condition'] == 2 && in_array('somme',$keys) && $value['somme'] == 500.00 && in_array('price',$keys) && $value['price'] == 0.00){
    echo "oh yes";
  }
}

输出： - https://eval.in/925925

<强>参考： -

PHP: array_keys - Manual

PHP: array_values - Manual

Answer 3

尝试这个

 $string = [["customer_group" => "3", "condition" => "2", "somme" => "500.00", "price" => "0.00"]];

    print_r($string);
    $newArr = array_map(function ($v) {
        return [
            'customer_group' => $v['customer_group'], 
            'condition' => $v['condition'], 
            'somme' => $v['somme'], 
            'price' => $v['price']
       ];
    }, $string);
    print_r($newArr);

如何动态获取所有元素数组

3 个答案: