我想在 php 中显示来自 mysql 的单选按钮值
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【中文标题】我想在 php 中显示来自 mysql 的单选按钮值【英文标题】:i want to display the radio button value from mysql in php 【发布时间】:2019-06-03 04:11:47 【问题描述】:<div class="form-group">
<label>Gender</label>
<label class="radio-inline"><input type="radio" name="gender" value="male"<?php
if ($row["gender"] == 'male')
echo"checked";
?>/>male</label>
<label class="radio-inline"><input type="radio" name="gender" value="female" <?php
if ($row["gender"] == 'female')
echo "checked";
?>/>Female</label>
<label class="radio-inline"><input type="radio" value="others" name="gender"
<?php if ($row["gender"] == 'others')
echo "checked";
?>/>Others</label>
</div>
我想通过 php 从 mysql 获取单选按钮的值,它不显示结果
【问题讨论】:
你能分享你的代码吗? 可能是因为您在echo"checked";
中缺少一个空格。查看页面的来源并确保value="male"
和checked
之间有空格。还有,这么多标签。
你能检查一下你在$row["gender"]
得到了什么吗?
【参考方案1】:
你快到了,唯一的问题是“value”和“checked”属性之间的空格。您的代码将被翻译成:
<input type="radio" name="gender" value="male"checked/>
应该是:
<input type="radio" name="gender" value="male" checked />
你可以像这样使它更简单:
<div class="form-group">
<label>Gender</label>
<label class="radio-inline">
<input type="radio" name="gender" value="male" <?=$row["gender"] == 'male' ? 'checked' : ''?>/>
Male
</label>
<label class="radio-inline">
<input type="radio" name="gender" value="female" <?=$row["gender"] == 'female' ? 'checked' : ''?>/>
Female
</label>
<label class="radio-inline">
<input type="radio" value="others" name="gender" <?=$row["gender"] == 'others' ? 'checked' : ''?>/>
Others
</label>
</div>
【讨论】:
【参考方案2】:这应该可行,而且看起来更整洁:
<?php
function echoChecked($val)
if($row["gender"] == $val)
return 'checked = "checked"';
?>
<div class="form-group">
<label>Gender</label>
<label class="radio-inline">
<input type="radio" name="gender" value="male" <?= echoChecked("male") ?> />
Male
</label>
<label class="radio-inline">
<input type="radio" name="gender" value="female" <?= echoChecked("female") ?> />
Female
</label>
<label class="radio-inline">
<input type="radio" name="gender" value="others" <?= echoChecked("others") ?> />
Others
</label>
</div>
【讨论】:
【参考方案3】: <h2>CRUD OPERATION</h2>
<?php
$id=$_GET['id'];
$query_update = "select * from crudtable where id=$id";
$res_update = mysqli_query($conn, $query_update);
?>
<!--crud form start here-->
<form action="" method="post" enctype="multipart/form-data">
<?php
$row_update = mysqli_fetch_array($res_update);
$id = $row_update['id'];
$name=$row_update['first_name'];
$gender=$row_update['gender'];
?>
<div class="form-group">
<label for="name">First Name</label>
<input type="text" class="form-control" name="fname" value="<?php echo $row_update['first_name']; ?>">
</div>
<div class="form-group">
<label for="lastname">Last name</label>
<input type="text" class="form-control" name="lname" value ="<?php echo $row_update['last_name']; ?>">
</div>
<div class="form-group">
<label for="email">Email</label>
<input type="email" class="form-control" name="email" value ="<?php echo $row_update['email']; ?>">
</div>
<div class="form-group">
<label>Phone</label>
<input type="text" class="form-control" name="phone" value ="<?php echo $row_update['phone']; ?>">
</div>
<div class="form-group">
<label>Gender:</label>
<label class="radio-inline">
<input type="radio" name="gender" <?php if($gender == 'male')
echo "checked"; ?> value= "male"/>
Male
</label>
<label class="radio-inline">
<input type="radio" name="gender" <?php if($gender == 'female')
echo "checked";
?> value= "female"/>
Female
</label>
<label class="radio-inline">
<input type="radio" name="gender" value= "others" <?php if($gender == 'others')
echo "checked";
?> />
Others
</label>
</div>
<div class="form-group">
<label>country</label>
<select class="form-control" name="country" >
<option>india</option>
<option>pakistan</option>
<option>australia</option>
<option>usa</option>
<option>Uk</option>
<option>nepal</option>
<option>australia</option>
<option>usa</option>
</select>
</div>
<div class="form-group">
<label>Hobbies</label>
<label class="checkbox-inline"><input type="checkbox" value="cricket" name="hobbies[]">Cricket</label>
<label class="checkbox-inline"><input type="checkbox" value="singing" name="hobbies[]">singing</label>
<label class="checkbox-inline"><input type="checkbox" value="dancing" name="hobbies[]">dancing</label>
</div>
<div class="form-group">
<textarea type="textarea" class="form-control" rows="5" name="message">
</textarea>
</div>
<div class="form-group">
<label>Image </label>
<input type="file" name="uploadfiles">
</div>
<div class="form-group">
<input tenter code hereype="submit" class="btn btn-default btn-primary form-control " value="submit" name="updatebtn">
</div>
</form>
[1]: https://i.stack.imgur.com/h5ekf.png
【讨论】:
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