数组搜索键和替换值 php

Question

我有一个像这样的数组

[{"detail":"33,putih","sku":"123","price":"500000","stok":"8"},{"detail":"33,hitam","sku":"123","price":"500000","stok":"5"},{"detail":"43,hitam","sku":"123","price":"1000000","stok":"1"}]

我必须json_decode它。

我想从细节"33，hitam"更改 stok = 2。

但是我对首先使用数组搜索并使用数组替换感到非常困惑。

Answer 1

你可以这样做：

$stringarray = '[{"detail":"33,putih","sku":"123","price":"500000","stok":"8"},{"detail":"33,hitam","sku":"123","price":"500000","stok":"5"},{"detail":"43,hitam","sku":"123","price":"1000000","stok":"1"}]';
$array = json_decode($stringarray);
var_dump($array);
$replaced = replaceInObject($array, "detail", "33,hitam", "stok" , "2");
var_dump($replaced);
function replaceInObject($array, $field, $searchvalue, $valuefield, $newvalue){
foreach($array as $element){
if($element->$field == $searchvalue){
$element->$valuefield = $newvalue;
}
}
return $array;
}

Answer 2

您可以使用array_map来实现此目的

$data = '[{"detail":"33,putih","sku":"123","price":"500000","stok":"8"},{"detail":"33,hitam","sku":"123","price":"500000","stok":"5"},{"detail":"43,hitam","sku":"123","price":"1000000","stok":"1"}]';
$json = json_decode($data, true);
$result = array_map(function($e) {
if ($e['detail'] == "33,hitam") $e['stok'] = "2";
return $e;
}, $json);