PHP标头位置无法正常工作

Question

有人能指出我为什么以下不起作用？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.

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>

Answer 1

您必须使用比较运算符==而不是=

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()由于您已经重定向到另一个页面,因此也是多余的.