单选按钮与如果

Question

工作的单选按钮，但得到未定义指数：

<form action='' method='Post'/> 
Fra Dato: <input type="text" name="fraDato" value="<?php echo date('d-m-Y'); ?>" /> <br> 
Til Dato: <input type="text" name="tilDato" value="<?php echo date('d-m-Y'); ?>"> <br> 
<input type="radio" name="timesmaling" value="1">Times malinger<br> 
<input type="radio" name="tredjetimesmaling" value="1">Tredje times malinger <br> 
<input type='submit' name='submit' value='Generer rapport'> 

</form> 

<?php 
if (isset($_POST['submit'])) { 

    if ($_POST['timesmaling']) 

    { 
     echo "timesmaling"; 
    } 

    if ($_POST['tredjetimesmaling']) 
    { 

     echo "tredjetimesmaling"; 

    } 

} 

?> 

Answer 1

你必须命名单选按钮都是一样的，然后给他们一个值，而不是：

<input type="radio" name="group" value="timesmaling"> Times malinger 
<input type="radio" name="group" value="tredjetimesmaling" checked> Tredje times malinger 

<?php 
if (isset($_POST['group'])) 
{ 
    echo $_POST['group']; // this is the value 

    // You can do this now 
    if($_POST['group'] == 'timesmaling') 
    { 
     echo 'hello'; 
    } 
    elseif($_POST['group'] == 'tredjetimesmaling') 
    { 
     echo 'yellow'; 
    } 
} 

Answer 2

使用像这样..

<form action='' method='Post'/> 
Fra Dato: <input type="text" name="fraDato" value="<?php echo date('d-m-Y'); ?>" /> <br> 
Til Dato: <input type="text" name="tilDato" value="<?php echo date('d-m-Y'); ?>"> <br> 
<input type="radio" name="radio" checked value="timesmaling">Times malinger<br> 
<input type="radio" name="radio" value="tredjetimesmaling">Tredje times malinger <br> 
<input type='submit' name='submit' value='Generer rapport'> 
</form> 
<?php 
if (isset($_POST['submit'])) 
{ 

    if (isset($_POST['radio'])) 
    { 
     echo $_POST['radio']; 
    } 
}