如何在PHP中处理<select>的多个值？

Question

<select id="industryExpect" multiple="multiple">
<option value="1">item1</option>
<option value="2">item2</option>
<option value="3">item3</option>
...
</select>

我看到的是:industryExpect = 13&industryExpect = 17&industryExpect = 19

比方说,同一个KEY有多个值,

如何从PHP中的$ _POST中检索它们？

Answer 1

最后给它命名[],例如:

<select id="industryExpect" name="industryExpect[]" multiple="multiple">
    <option value="1">item1</option>
    <option value="2">item2</option>
    <option value="3">item3</option>
</select>

然后在您的$_POST数组中,您将获得所有选定选项的数组:

// assuming that item1 and item3 were selected:
print_r($_POST['industryExpect']);
/*
array
(
    0 => 1
    1 => 3
)
*/