如何从HTML选择选项列表中获取值

Question

<form action="" method="post"> <select name="select1"> <option value="value1">Value one</option> <option value="value2">Value two</option> </select> <input type="submit" name="submit" value="Go"/> </form>

Onsubmit，我需要在提交时打印Value one。所有帖子都使用$_POST['select1']来获取值。但它只会给value1

Answer 1

试试这个

＆＃13;

＆＃13;

function changeValue(){

var e = document.getElementById("select1");
var strUser = e.options[e.selectedIndex].text;
document.getElementById("submit").value = strUser;
}  

＆＃13;

<form action="" method="post">
  <select name="select1" id="select1">
    <option value="value1">Value one</option>
    <option value="value2">Value two</option>
  </select>
  <input type="submit" name="submit" id="submit" value="Go" onclick="changeValue();"/>
</form>

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＆＃13;

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