php - 是否可以将 php 代码插入 ' header("Location : example. php") ' 命令？

Question

我在 php 代码块中有以下命令: header("Location: clivesclassiclounge_blogtest_single.php?loginsuccess");

我想修改 header 来查询数据库 - 例如: header("Location: clivesclassiclounge_blogtest_single.php?post=<?php echo $row['id']?>loginsuccess");

当我尝试进行设置时，我的编码程序/文本编辑器检测到错误(而且感觉很草率)。我觉得我以错误的方式解决这个问题，非常感谢任何建议。

谢谢

完整代码块:

function getLogin ($conn) {
    if (isset($_POST['loginSubmit'])) {
    $uid= mysqli_real_escape_string($conn, $_POST['uid']);
    $pwd= mysqli_real_escape_string($conn, $_POST['pwd']);

    $sql = "SELECT * FROM user WHERE uid='$uid' AND pwd='$pwd'";
    $result = mysqli_query($conn, $sql);
    if (mysqli_num_rows($result) > 0) {
        if ($row = $result->fetch_assoc()) {
            $_SESSION['id'] = $row['id'];
            $_SESSION['uid'] = $row['uid'];
            header("Location: clivesclassiclounge_blogtest_single.php?loginsuccess");
            exit();
        }
    } else {
        header("Location: clivesclassiclounge_blogtest_single.php?loginfailed");
        exit();
        }
    }
}

Answer 1

您想要连接 URL 字符串而不是 echo 例如

if (mysqli_num_rows($result) > 0) {
    if ($row = $result->fetch_assoc()) {
        $_SESSION['id'] = $row['id'];
        $_SESSION['uid'] = $row['uid'];
        header("Location: clivesclassiclounge_blogtest_single.php?" . $row['id'] . "loginsuccess");
        exit();
    }
} else {
    header("Location: clivesclassiclounge_blogtest_single.php?loginfailed");
    exit();
    }
}

PHP 字符串运算符 http://php.net/manual/en/language.operators.string.php

将两个字符串连接在一起 How to combine two strings together in PHP?