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PHP實戰本文實例講述了PHP積分兌換接口的實現辦法.分享給大家供大家參考.具體實現辦法如下：
PHP實戰exchange.php接口內容如下：
代碼如下:
<?php?
?
/*session_start();
if(!isset($_SESSION['zaszh_user_id'])){
??? echo json_encode(array('status'=>'error','msg'=>'連接超時,請重新打開頁面.'));
??? exit;
}
$user_id = $_SESSION['zaszh_user_id'];*/?
?
$user_id = 1; // 測試用?
$exchange_points = intval($_GET['exchange_points']);?
?
require('connect_database.php');?
// 扣除答題積分?
$mysqli->query("update zaszh_user set answer_points=answer_points-{$exchange_points} where id='{$user_id}' and answer_points>={$exchange_points}");?
if($mysqli->affected_rows){?
??? // 有積分?
??? switch($exchange_points){?
??????? // 5元話費?
??????? 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元話費',unix_timestamp(now()))");?
??????????????? if($mysqli->affected_rows){?
??????????????????? echo json_encode(array('status'=>'success','msg'=>'5元話費'));?
??????????????? }else{?
??????????????????? // 獲獎失敗?
??????????????? }?
??????????? }else{?
??????????????? // 無剩余?
??????????????? // 恢復答題積分?
??????????????? $mysqli->query("update zaszh_user set answer_points=answer_points+{$exchange_points} where id='{$user_id}'");?
??????????? }?
??????????? break;?
??????? // 10元話費?
??????? 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元話費',unix_timestamp(now()))");?
??????????????? if($mysqli->affected_rows){?
??????????????????? echo json_encode(array('status'=>'success','msg'=>'10元話費'));?
??????????????? }else{?
??????????????????? // 獲獎失敗?
??????????????? }?
??????????? }else{?
??????????????? // 無剩余?
??????????????? // 恢復答題積分?
??????????????? $mysqli->query("update zaszh_user set answer_points=answer_points+{$exchange_points} where id='{$user_id}'");?
??????????? }?
??????????? break;?
??? }?
?
??? // 記錄積分消耗?
??? $mysqli->query("insert into zaszh_answer_points_consume(user_id,points_consume,consume_for,create_date) values('{$user_id}','{$exchange_points}','exchange',unix_timestamp(now()))");?
}else{?
??? // 無積分?
??? echo json_encode(array('status'=>'error','msg'=>'您的積分不足.'));?
}?
$mysqli->close();
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