本文实例讲述了PHP积分兑换接口的实现方法。分享给大家供大家参考。具体实现方法如下：

exchange.php接口内容如下：

复制代码 代码如下:<?php    /*session_start(); if(!isset($_SESSION["zaszh_user_id"])){     echo json_encode(array("status"=>"error","msg"=>"连接超时，请重新打开页面。"));     exit; } $user_id = $_SESSION["zaszh_user_id"];*/    $user_id = 1; // 测试用  $exchange_points = intval($_GET["exchange_points"]);    require("connect_database.php");  // 扣除答题积分  $mysqli->query("update zaszh_user set answer_points=answer_points-{$exchange_points} where id="{$user_id}" and answer_points>={$exchange_points}");  if($mysqli->affected_rows){      // 有积分      switch($exchange_points){          // 5元话费          case 200:              $mysqli->query("update zaszh_telephone_charge_surplus set charge_surplus=charge_surplus-5 where date=substring(now(),1,10) and charge_surplus>=5");              if($mysqli->affected_rows){                  // 有剩余                  $mysqli->query("insert into zaszh_award(user_id,prize,create_date) values("{$user_id}","5元话费",unix_timestamp(now()))");                  if($mysqli->affected_rows){                      echo json_encode(array("status"=>"success","msg"=>"5元话费"));                  }else{                      // 获奖失败                  }              }else{                  // 无剩余                  // 恢复答题积分                  $mysqli->query("update zaszh_user set answer_points=answer_points+{$exchange_points} where id="{$user_id}"");              }              break;          // 10元话费          case 400:              $mysqli->query("update zaszh_telephone_charge_surplus set charge_surplus=charge_surplus-10 where date=substring(now(),1,10) and charge_surplus>=10");              if($mysqli->affected_rows){                  // 有剩余                  $mysqli->query("insert into zaszh_award(user_id,prize,create_date) values("{$user_id}","10元话费",unix_timestamp(now()))");                  if($mysqli->affected_rows){                      echo json_encode(array("status"=>"success","msg"=>"10元话费"));                  }else{                      // 获奖失败                  }              }else{                  // 无剩余                  // 恢复答题积分                  $mysqli->query("update zaszh_user set answer_points=answer_points+{$exchange_points} where id="{$user_id}"");              }              break;      }        // 记录积分消耗      $mysqli->query("insert into zaszh_answer_points_consume(user_id,points_consume,consume_for,create_date) values("{$user_id}","{$exchange_points}","exchange",unix_timestamp(now()))");  }else{      // 无积分      echo json_encode(array("status"=>"error","msg"=>"您的积分不足。"));  }  $mysqli->close();

希望本文所述对大家的php程序设计有所帮助。