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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