Question

我有点困惑。我有以下数组：我试图使用STL迭代器循环它并返回任何数组的所有值，其中Name = Dodge。我注意到我无法为每个循环执行$cars['Price']。我如何得到汽车的价格？

$cars = Array {

     array[0] {
               'Name' => 'Dodge',
               'Drive' => '4W',
               'Price' => '15,000'

              },
     array[1] {
               'Name' => 'Corolla',
               'Drive' => '2W',
               'Price' => '17,300'
               }
         ..
}

这是否正确：

try {
    $iter = new RecursiveArrayIterator($cars);

    // loop through the array
    $all_totals = array();
    foreach(new RecursiveIteratorIterator($iter) as $key => $value) 
    {

        if($key == 'Name' && $value == 'Dodge') 
        {
            //how to get the Price of the car?

            //push into totals array:
            $all_totals[$value] = $value;
        }

    }
}

Answer 1

你可以试试这个。

foreach($cars as $key=>$value){
  echo $value['Name']." has a price of ".$value['Price'];
}

Answer 2

Use this code for perticular Dodge car price.

$sumofDodgeCar = 0;

foreach($cars as $value){
    if($value['Name']=='Dodge') {
         echo $value['Name']." has a price of ".$value['Price'];
    $sumofDodgeCar = $sumofDodgeCar + $value['Price'];
    }
}

echo "All Dodge car Price Sum :".$sumofDodgeCar;

Answer 3

使用[array_keys()][1]进行此操作。

$keys = array_keys($array);

PHP使用递归数组迭代器类

3 个答案: