php - 将数据插入foreach中的关联数组

Question

所以我有这个数组 $companies，它看起来像这样:

array(
    (int) 0 => array(
        'Company' => array(
            'id' => '54',
            'name' => 'Company 1',
            'phone' => '867038198',
            'start_date' => '2014-04-11'
        )
    ),
    (int) 1 => array(
        'Company' => array(
            'id' => '55',
            'name' => 'Company 2',
            'phone' => '867038199',
            'start_date' => '2014-04-23'
        )
    ))

然后我有以下 foreach 循环:

foreach($companies as $company){

    $count = 3;
    $company['Company']['count'] = $count;
}

当我尝试在 foreach 中调试 $company 时，一切正常并且计数已存储。但是当我返回整个数组 $companies 时，count 没有被存储。

非常感谢任何指导。

Answer 1

foreach 作用于数组的副本。您可以改用引用:

foreach($companies as &$company) {
    $count = 3;
    $company['Company']['count'] = $count;
}
unset($company); // clear the reference