用PHP计算html单选按钮值

Question

我有一个带分组单选按钮的html表单。这种形式包含有任何疑问或任何选项

<form action="results.php" method="post" enctype="multipart/form-data"><br> 
      <p>Have you ever turned a client down?</p> 
      <div id="q_1"> 
       <input type="radio" name="q[]" id="q_1_yes" value="yes"> 
       <label for="q_1_yes">Yes</label> 
       <input type="radio" name="q[]" id="q_1_no" value="no"> 
       <label for="q_1_no">No</label> 
      </div><br> 
      <p>Are you comfortable with failure?</p> 
      <div id="q_1"> 
       <input type="radio" name="q[]" id="q_2_yes" value="yes"> 
       <label for="q_2_yes">Yes</label> 
       <input type="radio" name="q[]" id="q_2_no" value="no"> 
       <label for="q_2_no">No</label> 
      </div><br> 
      <p>Can your concept be easily described and understood?</p> 
      <div id="q_1"> 
       <input type="radio" name="q[]" id="q_3_yes" value="yes"> 
       <label for="q_3_yes">Yes</label> 
       <input type="radio" name="q[]" id="q_3_no" value="no"> 
       <label for="q_3_no">No</label> 
      </div><br> 
        <input type="submit" name="sub_eit" id="sub_eit" value="Submit"> 
       </div> 
      </form> 

我知道我可以指望的单选按钮的数量与名称q

$count_cbox = count($_POST['q']) 

但有可能的是，当用户进行选择，我算单选按钮值=“是”或“否”。

Answer 1

请稍微改变您的单选按钮名称。否则，分组不起作用：

<form method="post" enctype="multipart/form-data"><br> 
<p>Have you ever turned a client down?</p> 
<div id="q_1"> 
    <input type="radio" name="q[0]" id="q_1_yes" value="yes"> 
    <label for="q_1_yes">Yes</label> 
    <input type="radio" name="q[0]" id="q_1_no" value="no"> 
    <label for="q_1_no">No</label> 
</div><br> 
<p>Are you comfortable with failure?</p> 
<div id="q_1"> 
    <input type="radio" name="q[1]" id="q_2_yes" value="yes"> 
    <label for="q_2_yes">Yes</label> 
    <input type="radio" name="q[1]" id="q_2_no" value="no"> 
    <label for="q_2_no">No</label> 
</div><br> 
<p>Can your concept be easily described and understood?</p> 
<div id="q_1"> 
    <input type="radio" name="q[2]" id="q_3_yes" value="yes"> 
    <label for="q_3_yes">Yes</label> 
    <input type="radio" name="q[2]" id="q_3_no" value="no"> 
    <label for="q_3_no">No</label> 
</div><br> 
<input type="submit" name="sub_eit" id="sub_eit" value="Submit"> 
</div> 
</form> 

的PHP代码：

for($i = 0; $i < count($_POST['q']); ++$i) { 
    if($_POST['q'][$i] == 'yes') { 
     ++$yes; 
    } 
} 

现在$是包含单选按钮的数量与价值肯定。在这种情况下0-3。请注意，如果没有选择单选按钮，它将返回NULL，而不是0.