从 PHP stdClass 获取属性名称 [英] Get property names from PHP stdClass

问题描述

我有一个如下所示的数组对象:

I have an array object that looks like:

$inDatabase = Array
(
    [0] => stdClass Object
        (
            [[e-mail]] => Array
                (
                )
        )
    [1] => stdClass Object
        (
            [[e-mail]] => Array
                (
                )
        )
)

如何将电子邮件地址推送到新阵列上?我尝试了以下方法:

How do I push email addresses onto a new array? I tried the following:

$innerKeys =[];
$temp=[];
for($i=0;$i<2;$i++){
   $temp = array_keys($inDatabase[$i])

   //so I thought $temp[0] would have the email address but $temp is null.

   array_push($innerKeys,$temp[0]);

}

推荐答案

array_keys() 用于数组.要将对象属性转换为数组，请使用 get_object_vars().所以你想要

array_keys() is for arrays. To turn the object properties into an array, use get_object_vars(). So you want

$temp = array_keys(get_object_vars($inDatabase[$i]));

演示

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