Question

我有以下html：

<form action="" method="get">
<ul>
    <li>location 
    <select name="locationdo">
        <option value="tax_cb">Checkbox</option>
        <option value="tax_radio">Radio</option>
        <option value="tax_dd">Dropdown</option>
    </select>
    </li>

    <li>genre 
    <select name="genredo">
        <option value="tax_cb">Checkbox</option>
        <option value="tax_radio">Radio</option>
        <option value="tax_dd">Dropdown</option>
    </select>
    </li>

    <li>studio 
    <select name="studiodo">
        <option value="tax_cb">Checkbox</option>
        <option value="tax_radio">Radio</option>
        <option value="tax_dd">Dropdown</option>
    </select>
    </li>
</ul>
<p><input type="submit" value="submit" name="submit" /></p>
</form>

我想要的是根据所做的选择将$which_tax_array中的数组元素存储在单独的变量中。希望代码能够更好地解释我想要实现的目标（但它不能像我想要的那样工作）：

if (isset($_GET['submit'])) {

        $which_tax_array = array('location', 'genre', 'studio');
        $what = array();
        foreach ($which_tax_array as $key => $tax_name) {

            $what[$tax_name] = $_GET[$tax_name.'do'];


            foreach ($what as $tax_term => $display_option) {

                if ( in_array($what[$tax_name], $what) ) {
                    $checkboxes = ','.$tax_term;
                } elseif ( in_array($what[$tax_name], $what) ) {
                    $radios .= ','.$tax_term;;
                } elseif ( in_array($what[$tax_name], $what) ) {
                    $dropdowns .= ','.$tax_term;
                }
            }


        }

}

echo 'cb '.$checkboxes.'<br>';
echo 'radio '.$radios . '<br>';
echo 'dd '.$dropdowns.'<br>';

Answer 1

不确定你要做什么。我看到一些可能的问题 -
（1）你没有关闭foreach ($which_tax_array as $key => $tax_name)直到结束，所以你太早执行你的下一个foreach （2）您有$checkboxes = ','.$tax_term;而不是$checkboxes .= ','.$tax_term;，因此您覆盖了$checkboxes而不是附加。
（3）当您检查数组值是否在其自己的数组中时，您的if ( in_array($what[$tax_name], $what) )将会成立，因此您的所有值都将在$checkboxes中。我想您要检查值是否等于tax_cb，tax_radio或tax_dd。

尝试这样的事情 -

if (isset($_GET['submit'])) {

    $which_tax_array = array('location', 'genre', 'studio');
    $what = array();
    foreach ($which_tax_array as $key => $tax_name) {
        $what[$tax_name] = $_GET[$tax_name.'do'];
    }

    foreach ($what as $tax_term => $display_option) {
        if ($what[$tax_name] == 'tax_cb') {
                $checkboxes .= ','.$tax_term;
        } elseif ($what[$tax_name] == 'tax_radio') ) {
                $radios .= ','.$tax_term;;
        } elseif ($what[$tax_name] == 'tax_dd') ) {
                $dropdowns .= ','.$tax_term;
            }
        }

echo 'cb '.$checkboxes.'<br>';
echo 'radio '.$radios . '<br>';
echo 'dd '.$dropdowns.'<br>';
}

将下拉选项存储为将数组元素设置为特定变量

1 个答案: