PHP 标头位置无法正常工作
有人可以指出为什么以下内容不起作用吗?即使我选择不同的单选按钮，它也只会重定向到第一个位置.
Can someone point me out why the below isn't working? It only redirects to the first location even if I choose different radio buttons.
PHP:
if (isset($_POST['submit'])) {
if (!empty($_POST['electronics'])) {
if ($_POST['electronics'] = "camera") {
header("location: camera.php");
exit();
}
if ($_POST['electronics'] = "cell") {
header("location: cellphones.php");
exit();
}
if ($_POST['electronics'] = "cable") {
header("location: cables.php");
exit();
}
if ($_POST['electronics'] = "tv") {
header("location: tv.php");
exit();
}
}
...
HTML:
<form action="" method="post">
<input type="radio" name="electronics" value="cell"/>
<input type="radio" name="electronics" value="camera"/>
<input type="radio" name="electronics" value="cable"/>
<input type="radio" name="electronics" value="tv"/>
<input type="submit" name="submit">
</form>
推荐答案
你必须使用比较运算符 == 而不是 =
You have to use the comparison operator == instead of =
if (isset($_POST['submit'])) {
if (!empty($_POST['electronics'])) {
if ($_POST['electronics'] == "camera") {
header("location: camera.php");
}
else if ($_POST['electronics'] == "cell") {
header("location: cellphones.php");
}
else if ($_POST['electronics'] == "cable") {
header("location: cables.php");
}
else if ($_POST['electronics'] == "tv") {
header("location: tv.php");
}
}
...
此外，exit() 也是多余的，因为您已经重定向到另一个页面.
Also, the exit() is also redundant as you are already redirecting to another page.
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