Question

所以我有这个数组$companies，如下所示：

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;
}

当我尝试调试foreach中的$company时，一切都很好并且存储了计数。但是，当我返回整个$companies数组时，count不会存储。

非常感谢任何指导。

Answer 1

foreach适用于数组的副本。您可以改为使用引用：

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

Answer 2

Foreach适用于阵列的副本。您可以使用常规for循环：

for($i=0; $i < count($companies); $i++){

    $count = 3;
    $companies[$i]['Company']['count'] = $count;
}

Answer 3

尝试这个更快。

foreach($companies as $key=>$company) {
    $count = 3;
    $companies[$key]['Company']['count'] = $count;
}

将数据插入到foreach中的关联数组中

3 个答案: