str_replace 多维数组中的特定值

Question

我想用 . 替换某些键中的 ,，例如 [Price]。

给出这个数组：

Array
(
    [0] => Array
        (
            [Product line] => Misc
            [Seller] => aaa.com
            [Tracking ID] => bbbb
            [Date shipped] => October 23, 2015
            [Price] => 60,43
            [Referral fee rate] => 3,00%                
            [Quantity] => 2
            [Revenue] => 120,86
            [Earnings] => 3,62
            [Sub Tag] => xxxx
        )

    [1] => Array
        (
            [Product line] => Misc
            [Seller] => aaaa.com
            [Tracking ID] => bbbb
            [Date shipped] => October 23, 2015
            [Price] => 9,34
            [Referral fee rate] => 6,96%                
            [Quantity] => 1
            [Revenue] => 9,34
            [Earnings] => 0,65
            [Sub Tag] => xxxx
        )
)

以及以下函数：

function str_replace_specific_value($sSearch, $sReplace, &$aSubject){
    foreach($aSubject as $sKey => $uknValue) {
        if(is_array($uknValue)) {
            foreach($sKey as $fKey => $fuknValue) {
                $uknValue['Price'] = str_replace($sSearch, $sReplace, $fuknValue);
            }
        }
    }   
}

有人可以帮我吗？我尝试了几件事，但无法正常工作。

Answer 1

改变主数组，像这样：

function str_replace_specific_value($sSearch, $sReplace, &$aSubject){
    foreach($aSubject as $key => $sub_array) {
        if(is_array($sub_array)) {
            foreach($sub_array as $sub_key => $sub_value) {
                $sSubject[$key][$sub_key] = str_replace($sSearch, $sReplace, $sub_value);
            }
        }
    }   
}

如果您只想对一组键进行操作，则需要声明这些键并使用其他函数：

$keys_to_be_replaced = ['price','whatever'];

function str_replace_specific_value($sSearch, $sReplace, &$aSubject, $keys_to_be_replaced){
    foreach($aSubject as $key => $sub_array) {
        if(is_array($sub_array)) {
            foreach($sub_array as $sub_key => $sub_value) {
                if(in_array($sub_key,$keys_to_be_replaced))
                  $sSubject[$key][$sub_key] = str_replace($sSearch, $sReplace, $sub_value);
            }
        }
    }   
}

Answer 2

您可以使用 array_walk_recursive 函数遍历关联数组的每个元素。

这里 $result 是您的输入数组。

array_walk_recursive($result, 'replacer');

/**
 * Replace comma with dot from 'Price' element of associative array.
 * This function call recursively
 *
 * @access public
 *
 * @param string|int|null $item
 * @param string $key
 * @return void
 */
public function replacer(& $item, $key)
{
    if ($key == 'Price') {
        $item = str_replace(",", ".", $item);
    }
}

var_dump($result) 用 .

替换 , 后检查输出

Answer 3

你可以试试这个：

$arr[0] = array("price" => "60,53");
$arr[1] = array("price" => "9,34");

foreach ($arr AS $key => $value) {
   $arr[$key]["price"] = str_replace(",", ".", $arr[$key]["price"]);
}
echo "<pre>";
print_r($arr);

输出：

Array
(
    [0] => Array
        (
            [price] => 60.53
        )

    [1] => Array
        (
            [price] => 9.34
        )

)

Answer 4

候补

array_walk_recursive($r, function (your args){
});

Answer 5

通过 array_walk_recursive 如果您想更改现有 multi-dimensional 数组的值，您需要通过在变量前面加上符号 (&) 来指定回调的第一个参数作为引用

array_walk_recursive($data, function(&$item, $key){
            
    if( $key == 'Price' ){
                
        $item = str_replace(',','.',$item);
    }
});

str_replace 多维数组中的特定值

str_replace specific value in multidimensional array

php

arrays

multidimensional-array

str-replace