如何使用整數(shù)等名稱訪問對象屬性？如何訪問輸出為：[highlighting] => stdClass Object
(
[448364] => stdClass Object
(
[Data] => Array
(
[0] => Tax amount liability is .......我想訪問鍵[0]中的字符串值。我想做這樣的事情：print myVar->highlighting->448364->Data->0但這兩個數(shù)字/整數(shù)似乎有問題。編輯：我將在這里介紹一些歷史，我從哪里得到我的瓦爾。我在用json_decode()類似于：$myVar = json_decode(url)
3 回答
阿波羅的戰(zhàn)車
TA貢獻1862條經(jīng)驗 獲得超6個贊
更新PHP 7.2
原始答案(適用于7.2.0之前的版本)
他們從沒告訴過你
事實1：
$a = array('123' => '123', '123foo' => '123foo');$o = (object)$a;echo $o->123foo; // error事實2：
$a = array('123' => '123', '123foo' => '123foo');$o = (object)$a;echo $o->{'123foo'}; // OK!事實3：
$a = array('123' => '123', '123foo' => '123foo');$o = (object)$a;echo $o->{'123foo'}; // OK!echo $o->{'123'}; // error!活例.
事實4：
$a = array('123' => '123');$o1 = (object)$a;$o2 = new stdClass;$o2->{'123'} = '123'; // setting property is OKecho $o1->{'123'};
// error!echo $o2->{'123'}; // works... WTF?活例.
你能做什么
選項1：手動執(zhí)行
$a = array('123' => '123', '123foo' => '123foo');$o = (object)$a;$a = (array)$o;echo $o->{'123'}; // error!echo $a['123']; // OK!$highlighting = (array)$myVar->highlighting;$data = (array)$highlighting['448364']->Data;$value = $data['0']; // at last!
備選案文2：核選擇
function recursive_cast_to_array($o) {
$a = (array)$o;
foreach ($a as &$value) {
if (is_object($value)) {
$value = recursive_cast_to_array($value);
}
}
return $a;}$arr = recursive_cast_to_array($myVar);$value = $arr['highlighting']['448364']['Data']['0'];選項3：聰明地玩它
$arr = json_decode(json_encode($myVar), true);$value = $arr['highlighting']['448364']['Data']['0'];
json_encode).
互換的青春
TA貢獻1797條經(jīng)驗 獲得超6個贊
$arr = array('123' => 'abc');$obj = (object) $arr;$obj->{'123'} = 'abc';print_r( $obj );stdClass Object ( [123] => 'abc', [123] => 'abc')
#Fact 4
$obj = json_decode(json_encode($arr));
$obj->{123};$obj->{'123'};
紫衣仙女
TA貢獻1839條經(jīng)驗 獲得超15個贊
<?php function objectToArray($d) {
if (is_object($d)) {
// Gets the properties of the given object
// with get_object_vars function
$d = get_object_vars($d);
}
if (is_array($d)) {
/*
* Return array converted to object
* Using __FUNCTION__ (Magic constant)
* for recursive call
*/
return array_map(__FUNCTION__, $d);
}
else {
// Return array
return $d;
}
}?>首先將數(shù)組傳遞給 objectToArray功能 然后取返回值 回波 [highlighting][448364][Data][0]
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