转 浅谈 PHP 与手机 APP 开发（API 接口开发）

<?php
$output = array();
$a = @$_GET[‘a‘] ? $_GET[‘a‘] : ‘‘;
$uid = @$_GET[‘uid‘] ? $_GET[‘uid‘] : 0;
 if (empty($a)) {
    $output = array(‘data‘=>NULL, ‘info‘=>‘坑爹啊!‘, ‘code‘=>-201);
    exit(json_encode($output));
 }
 //走接口
 if ($a == ‘get_users‘) {
    //检查用户
    if ($uid == 0) {
        $output = array(‘data‘=>NULL, ‘info‘=>‘The uid is null!‘, ‘code‘=>-401);
        exit(json_encode($output));
    }
    //假设 $mysql 是数据库
    $mysql = array(
        10001 => array(
            ‘uid‘=>10001,
            ‘vip‘=>5,
            ‘nickname‘ => ‘Shine X‘,
            ‘email‘=>‘979137@qq.com‘,
            ‘qq‘=>979137,
            ‘gold‘=>1500,
            ‘powerplay‘=> array(‘2xp‘=>12,‘gem‘=>12,‘bingo‘=>5,‘keys‘=>5,‘chest‘=>8),
            ‘gems‘=> array(‘red‘=>13,‘green‘=>3,‘blue‘=>8,‘yellow‘=>17),
            ‘ctime‘=>1376523234,
            ‘lastLogin‘=>1377123144,
            ‘level‘=>19,
            ‘exp‘=>16758,
        ),
        10002 => array(
            ‘uid‘=>10002,
            ‘vip‘=>50,
            ‘nickname‘ => ‘elva‘,
            ‘email‘=>‘elva@ezhi.net‘,
            ‘qq‘=>NULL,
            ‘gold‘=>14320,
            ‘powerplay‘=> array(‘2xp‘=>1,‘gem‘=>120,‘bingo‘=>51,‘keys‘=>5,‘chest‘=>8),
            ‘gems‘=> array(‘red‘=>13,‘green‘=>3,‘blue‘=>8,‘yellow‘=>17),
            ‘ctime‘=>1376523234,
            ‘lastLogin‘=>1377123144,
            ‘level‘=>112,
            ‘exp‘=>167588,
        ),
        10003 => array(
            ‘uid‘ => 10003,
            ‘vip‘ => 5,
            ‘nickname‘ => ‘Lily‘,
            ‘email‘ => ‘Lily@ezhi.net‘,
            ‘qq‘ => NULL,
            ‘gold‘ => 1541,
            ‘powerplay‘=> array(‘2xp‘=>2,‘gem‘=>112,‘bingo‘=>4,‘keys‘=>7,‘chest‘=>8),
            ‘gems‘ => array(‘red‘=>13,‘green‘=>3,‘blue‘=>9,‘yellow‘=>7),
            ‘ctime‘ => 1376523234,
            ‘lastLogin‘=> 1377123144,
            ‘level‘ => 10,
            ‘exp‘ => 1758,
        ),
    );
    
    $uidArr = array(10001,10002,10003);
    if (!in_array($uid, $uidArr, true)) {
        $output = array(‘data‘ => NULL, ‘info‘=>‘The user does not exist!‘, ‘code‘ => -402);
        exit(json_encode($output));
    }
    //查询数据库
    $userInfo = $mysql[$uid];
    
    //输出数据
    $output = array(
        ‘data‘ => array(
            ‘userInfo‘ => $userInfo,
            ‘isLogin‘ => true,//是否首次登陆
            ‘unread‘ => 4,//未读消息数量
            ‘untask‘ => 3,//未完成任务
        ), 
        ‘info‘ => ‘Here is the message which, commonly used in popup window‘, //消息提示，客户端常会用此作为给弹窗信息。
        ‘code‘ => 200, //成功与失败的代码，一般都是正数或者负数
    );
    exit(json_encode($output));
 } elseif ($a == ‘get_games_result‘) {
    //...
    die(‘您正在调 get_games_result 接口!‘);
 } elseif ($a == ‘upload_avatars‘) {
    //....
    die(‘您正在调 upload_avatars 接口!‘);
 }