dongliao3450 2018-01-17 17:10
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如果设置单选按钮如何获取

So i ve got 3 radio buttons in a html document. Then i simply try to get if one of the buttons is set and then to print a message for one of the ticked buttons. They all are in a form. my buttons are:

echo "<table border=0>";
                echo "
                    <tr>
                        <td>
                            <input type=radio name=sg value=admin /> Administrator
                        </td>
                    </tr>
                ";
                echo "
                    <tr>
                        <td>
                            <input type=radio name=sg value=operator /> Operator
                        </td>
                    </tr>
                ";
                echo "
                    <tr>
                        <td>
                            <input type=radio name=sg value=member checked=checked /> member
                        </td>
                    </tr>
                ";
        echo "</table>";

The way i try to get them is:

if(isset($_GET['member'])) {
            echo "m is set!";
        }
        if(isset($_GET['admin'])) {
            echo "a is set!";
        }
        if(isset($_GET['operator'])) {
            echo "op is set!";
        }

This doesnt print anything, means none of the statements in the if clauses are true. How do i get them?

  • 写回答

1条回答 默认 最新

  • dsbo44836129 2018-01-17 17:16
    关注

    You access the value of the input incorrectly, like this:

    if(isset($_GET['member']))
    

    instead of the name of the HTML element, like this:

      if(isset($_GET['sg'])){ 
          if($_GET['sg'] == "member") {
            echo "m is set!";
         }
         if($_GET['sg'] == "admin") {{
            echo "a is set!";
         }
         if($_GET['sg'] == "operator"){
            echo "op is set!";
         }
      }
    
    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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