我有 JSON 數據，想通過鍵更新值。JSON：{ "language":"en", "education":[ { "unit":"e1", "language":"en" } ], "membership":[ { "uei":"21", "Uifed":"failed" } ]}我想將“失敗”的值更改uifed為“成功”。我做了什么？$json = '{"language":"en","education":[{"unit":"e1","language":"en"}],"membership":[{"uei":"21","Uifed":"failed"}]}';$arrayData = json_decode($json, true);$replacementData = array('Uifed' => 'success');$newArrayData = array_replace_recursive($arrayData, $replacementData);echo var_dump($newArrayData);結果：NULL我怎樣才能做到這一點？
2 回答
鴻蒙傳說
TA貢獻1865條經驗 獲得超7個贊
事情不是這樣的array_replace_recursive；替換數組需要與您要替換的數組具有相同的結構。對于您的示例數據，這將起作用：
$json = '{"language":"en","education":[{"unit":"e1","language":"en"}],"membership":[{"uei":"21","Uifed":"failed"}]}';
$arrayData = json_decode($json, true);
$replacementData = array('membership' => array(array('Uifed' => 'success')));
$newArrayData = array_replace_recursive($arrayData, $replacementData);
print_r($newArrayData);
輸出：
Array
(
? ? [language] => en
? ? [education] => Array
? ? ? ? (
? ? ? ? ? ? [0] => Array
? ? ? ? ? ? ? ? (
? ? ? ? ? ? ? ? ? ? [unit] => e1
? ? ? ? ? ? ? ? ? ? [language] => en
? ? ? ? ? ? ? ? )
? ? ? ? )
? ? [membership] => Array
? ? ? ? (
? ? ? ? ? ? [0] => Array
? ? ? ? ? ? ? ? (
? ? ? ? ? ? ? ? ? ? [uei] => 21
? ? ? ? ? ? ? ? ? ? [Uifed] => success
? ? ? ? ? ? ? ? )
? ? ? ? )
)
array_walk_recursive可以用來做你想做的事：
$replacementData = array('Uifed' => 'success');
array_walk_recursive($arrayData, function (&$value, $key) use ($replacementData) {
? ? $value = $replacementData[$key] ?? $value;
});
print_r($arrayData);
輸出：
Array
(
? ? [language] => en
? ? [education] => Array
? ? ? ? (
? ? ? ? ? ? [0] => Array
? ? ? ? ? ? ? ? (
? ? ? ? ? ? ? ? ? ? [unit] => e1
? ? ? ? ? ? ? ? ? ? [language] => en
? ? ? ? ? ? ? ? )
? ? ? ? )
? ? [membership] => Array
? ? ? ? (
? ? ? ? ? ? [0] => Array
? ? ? ? ? ? ? ? (
? ? ? ? ? ? ? ? ? ? [uei] => 21
? ? ? ? ? ? ? ? ? ? [Uifed] => success
? ? ? ? ? ? ? ? )
? ? ? ? )
)
慕標琳琳
TA貢獻1830條經驗 獲得超9個贊
通過引用foreach傳遞值的簡單示例：
$json = '{"language":"en","education":[{"unit":"e1","language":"en"}],"membership":[{"uei":"21","Uifed":"failed"}]}';
$arrayData = json_decode($json, true);
foreach ($arrayData['membership'] as &$membership) {
if ('failed' === $membership['Uifed']) {
$membership['Uifed'] = 'success';
}
}
print_r($arrayData);
小提琴。
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