08-12-周三_14-20-35

2026-08-12 14:20:36 +08:00
parent 977f7eec96
commit 56dd5b5adf
16 changed files with 1867 additions and 4 deletions
@@ -0,0 +1,10 @@
+<?php
+// 数据库连接配置
+$dbhost = "127.0.0.1";
+$dbuser = "root";
+$dbpass = "123456";
+$dbname = "site03";
+$dbport = "3306";
+$dbcharset = "utf8";
+$conn = mysqli_connect($dbhost, $dbuser, $dbpass, $dbname, $dbport, $dbcharset) or exit('连接失败');
+?>
@@ -0,0 +1,57 @@
+<?php
+// 接受数据，并且提取出action
+$data = json_decode(file_get_contents('php://input'), true);
+$action = $data['action'] ?? '';
+
+// 处理与用户相关的操作
+include 'db.php';
+
+// 如果数据库连接失败，则返回错误信息
+/** @var mysqli $conn */
+if (!isset($conn)) {
+    echo json_encode(['code' => 10004, 'status' => 'error', 'message' => '数据库连接失败']);
+    exit;
+}
+
+// 测试用户名是否已存在
+function testUsername(mysqli $conn, string $username): bool
+{
+    $sql = "select * from users where username = '$username'"; // sql注入风险
+    $result = mysqli_query($conn, $sql);
+    if (mysqli_num_rows($result) > 0) {
+        return true;
+    } else {
+        return false;
+    }
+}
+
+// 如果action是register，则注册用户
+if ($action == 'register') {
+    $username = $data['username'];
+    $password = $data['password'];
+    $email = $data['email'];
+    if (testUsername($conn, $username)) {
+        echo json_encode(['code' => 10001, 'status' => 'error', 'message' => '用户名已存在']);
+    } else {
+        $sql = "insert into users (username, password, email) values ('$username', '$password', '$email')";
+        $result = mysqli_query($conn, $sql);
+        if ($result) {
+            echo json_encode(['code' => 0, 'status' => 'success', 'message' => '注册成功']);
+        } else {
+            echo json_encode(['code' => 10002, 'status' => 'error', 'message' => '注册失败']);
+        }
+    }
+}
+
+// login的逻辑
+if ($action == 'login') {
+    $username = $data['username'];
+    $password = $data['password'];
+    $sql = "select * from users where username = '$username' and password = '$password'";
+    $result = mysqli_query($conn, $sql);
+    if (mysqli_num_rows($result) > 0) {
+        echo json_encode(['code' => 0, 'status' => 'success', 'message' => '登录成功']);
+    } else {
+        echo json_encode(['code' => 10003, 'status' => 'error', 'message' => '用户名或密码错误']);
+    }
+}