以输入形式从mysql获取单选按钮数据

Question

我已经搜索过了，不明白为什么不起作用。

    <input type="radio" name="soort" value="in"  echo ('.$_GET['soort'].'=="in")?"checked":"">In-Company<br />
    <input type="radio" name="soort" value="open" echo ('.$_GET['soort'] . '"=="open")?"checked":">Open inschrijving<br />

这也不起作用：

    <input type="radio" name="soort" value="in"  echo ($soort=="in")?"checked":"">In-Company<br />
    <input type="radio" name="soort" value="open" echo ($soort=="open")?"checked":">Open inschrijving<br />

很明显，我做错了什么，或者我错过了什么。

如果有人能在这里帮助我，或者把我带向正确的方向。非常感谢。

这是整个表单。

 print '<form action="edit_dienst.php" method="post">
    <p><strong>Titel</strong> <textarea name="navigatie" columns="20" rows="5">' . $row['navigatie'] . '</textarea></p>         
    <p><strong>Tekst</strong> <textarea name="tekst" columns="20" rows="5">' . $row['tekst'] . '</textarea></p>
    <input type="radio" name="soort" value="in"  echo ($soort=="in")?"checked":"">In-Company<br />
    <input type="radio" name="soort" value="open" echo ($soort=="open")?"checked":">Open inschrijving<br />
                <input type="hidden" name="id" value="' . $_GET['id'] . '" />
    <input type="submit" name="submit" value="Pas aan!" />
    </form><p></p>';

Answer 1

<?php $soort=$_GET['soort']; ?>
<input type="radio" name="soort" value="in"  <?php echo ($soort=="in")?"checked":"" ?>>In-Company<br />
<input type="radio" name="soort" value="open" <?php echo ($soort=="open")?"checked":"" ?>>Open inschrijving<br />

Answer 2

由于我看到了"print"，我推断您已经在php标记中了。你可以使用下面的脚本。

$soortInChecked = ($soort=="in")?"checked":"";
$soortOpenChecked = ($soort=="open")?"checked":"";
print '<form action="edit_dienst.php" method="post">
    <p><strong>Titel</strong> <textarea name="navigatie" columns="20" rows="5">' . $row['navigatie'] . '</textarea></p>
    <p><strong>Tekst</strong> <textarea name="tekst" columns="20" rows="5">' . $row['tekst'] . '</textarea></p>
    <input type="radio" name="soort" value="in" '.$soortInChecked.' >In-Company<br />
    <input type="radio" name="soort" value="open" '.$soortOpenChecked.' >Open inschrijving<br />
                <input type="hidden" name="id" value="' . $_GET['id'] . '" />
    <input type="submit" name="submit" value="Pas aan!" />
    </form><p></p>';

问题是你在报价中给出了回应。查看教程中的print/echo以及php中单引号和双引号的区别。