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'=>'[e-mail]',
  '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'=>'[e-mail]',
  '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' => '[e-mail]',
  '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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