php的api数据接口书写实例(推荐)

以下是接口代码实例：

<?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!');
}

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