Question

我已经为codeigniter表单设置了关联数组，并且我遇到了围绕数据进行foreach循环的问题。

我有这段代码 - 而且我现在才意识到我重新声明变量名$ array_name是一个数组而不是一个字符串，这就是为什么这个不能正常工作：<\ n / p>

foreach ($search as $search_term){
$count++;
$array_name = '$search'.$count;

$array_name = array(
        'name'  => 'search'.$count,
        'id'    => 'search'.$count,
        'value' => set_value('search'.$count, $search_term),
        'maxlength' => 80,
        'size'  => 30,
        'class' => 'text-input',
);

}

然而，数组名称被记录为$ array_name而不是$ search1，所以我显然做错了什么，我希望有人可以指出我正确的方向！

我也试过这个：

foreach ($search as $search_term){
$count++;
$array_name = '$search'.$count;

'search'.$count = array(
        'name'  => 'search'.$count,
        'id'    => 'search'.$count,
        'value' => set_value('search'.$count, $search_term),
        'maxlength' => 80,
        'size'  => 30,
        'class' => 'text-input',
);

}

这是我正在寻找的最终结果，但总体上会有六个：

$search1 = array(
        'name'  => 'search'.$count,
        'id'    => 'search'.$count,
        'value' => set_value('search'.$count, $search_term),
        'maxlength' => 80,
        'size'  => 30,
        'class' => 'text-input',
);
$search2 = array(
        'name'  => 'search2',
        'id'    => 'search2',
        'value' => set_value('search2, $search_term),
        'maxlength' => 80,
        'size'  => 30,
        'class' => 'text-input',
);

编辑1：

我刚刚意识到我重新声明变量名称$ array_name是一个数组而不是一个字符串，这就是为什么第一个不能正常工作，但我还是关于如何做到这一点有点困难。

Answer 1

使用动态字符串创建变量${'somestring'} =

foreach ($search as $search_term){
    $count++;
    $array_name = '$search'.$count;

    ${'search'.$count} = array(
        'name'  => 'search'.$count,
        'id'    => 'search'.$count,
        'value' => set_value('search'.$count, $search_term),
        'maxlength' => 80,
        'size'  => 30,
        'class' => 'text-input',
    );
}

虽然使用关联数组会更好

$searches = array();
foreach ($search as $search_term){
    $count++;
    $array_name = '$search'.$count;

    $searches['search'.$count] = array(
        'name'  => 'search'.$count,
        'id'    => 'search'.$count,
        'value' => set_value('search'.$count, $search_term),
        'maxlength' => 80,
        'size'  => 30,
        'class' => 'text-input',
    );
}

print_r( $searches );

Codeigniter关联数组 - 在foreach循环中更改数组名称

1 个答案: