Question

我想用mySql中的数据选择编辑形式的单选按钮，如何用单选按钮值写入？

这是我的代码：

foreach($arrAnswer as $ans)
{           
  <input name = "answer_'.$i.'" type="radio"  value="'..'"> '.$ans->descript.'<br>
}

谢谢你的帮助

Answer 1

Use can set radio box checked as shown below

 if ($fetch['sex'] = 'male')
    {
    echo "<td><input type='radio' name='sex' value='male' id='sex' checked> Male <input type='radio' name='sex' value='female' id='sex'> Female </td>";
    }
    else
    {
    echo "<td><input type='radio' name='sex' value='male' id='sex'> Male <input type='radio' name='sex' value='female' id='sex' checked> Female </td>";
    }

Answer 2

所以我认为这应该有用

$dummyAnswer = new stdClass();
$dummyAnswer->value = "somevalue";
$dummyAnswer->description = "some description";

$secondDummyAnswer = new stdClass();
$secondDummyAnswer->value = "second somevalue";
$secondDummyAnswer->description = "second some description";

// just a dummy, here would be your database result array
$arrAnswer = array(
    $dummyAnswer,
    $secondDummyAnswer
);

//wherever that comes from
$selectedValue = "somevalue";

foreach($arrAnswer as $index => $ans) {
    $checked = ( $ans->value == $selectedValue )? "checked" :"";

    echo '<input name = "answer_'.$index.'" type="radio"  value="'.$ans->value.'" '.$checked.'> '.$ans->description.'<br>';
}

Answer 3

这是三元运算符派上用场的地方：

$checked = (statement here) ? 'checked' : '';

将(statement here)替换为您的布尔值（1或0），例如$ans->field_name_here

然后将$checked放入<input>标记内，并确保输入值为1：

<input name = "answer_'.$i.'" type="radio"  value="1" '.$checked.'> '.$ans->descript.'<br>

如何使用mySql中的数据选择单选按钮

3 个答案: