PHP carousel lottery interface example, php carousel lottery

The example in this article describes the implementation method of the PHP carousel lottery interface. Share it with everyone for your reference. The details are as follows:

The carousel lottery here randomly returns a carousel angle, and the probability can be defined by yourself

lottery_get.php interface file is as follows:

Copy code The code is as follows:

/*session_start();
if(!isset($_SESSION['zaszh_user_id'])){
echo json_encode(array('status'=>'error','msg'=>'Connection timed out, please reopen the page.'));
exit;
}
$user_id = $_SESSION['zaszh_user_id'];*/

$user_id = 1; // For testing

// Carousel area
$arr_area = array(
'0' => array('min_angle'=>1,'max_angle'=>45,'prize'=>'Xiaomi'),
'1' => array('min_angle'=>46,'max_angle'=>90,'prize'=>'Polaroid'),
'2' => array('min_angle'=>91,'max_angle'=>135,'prize'=>'10 yuan phone fee'),
'3' => array('min_angle'=>136,'max_angle'=>180,'prize'=>'5 yuan phone fee'),
'4' => array('min_angle'=>181,'max_angle'=>225,'prize'=>'Thank you for participating'),
'5' => array('min_angle'=>226,'max_angle'=>270,'prize'=>'Thank you for participating'),
'6' => array('min_angle'=>271,'max_angle'=>315,'prize'=>'Thank you for participating'),
'7' => array('min_angle'=>316,'max_angle'=>360,'prize'=>'Thank you for participating')
);

// Selected area
$area_selected = array();
// Randomly draw
$num_rand = mt_rand(1,10);
switch($num_rand){
// Xiaomi
Case 1: $area_selected = $arr_area[0]; break;
// Polaroid
Case 2: $area_selected = $arr_area[1]; break;
// 10 yuan phone fee
Case 3: $area_selected = $arr_area[2]; break;
// 5 yuan phone fee
Case 4: $area_selected = $arr_area[3]; break;
//Thank you for participating
default:
          switch(mt_rand(1,4)){
                case 1: $area_selected = $arr_area[4]; break;
case 2: $area_selected = $arr_area[5]; break;
case 3: $area_selected = $arr_area[6]; break;
case 4: $area_selected = $arr_area[7]; break;
                                                                                                              break;
}
echo $area_selected['prize'];

require('connect_database.php');
// Deduct points for answering questions
$mysqli->query("update zaszh_user set answer_points=answer_points-5 where id='{$user_id}' and answer_points>=5");
if($mysqli->affected_rows){
// There are points
// Record points consumption
$mysqli->query("insert into zaszh_answer_points_consume(user_id,points_consume,consume_for,create_date) values('{$user_id}',5,'lottery',unix_timestamp(now()))");
Switch($area_selected['prize']){
case 'Xiaomi':
                 $mysqli->query("update zaszh_prize_surplus set surplus=surplus-1 where prize='Xiaomi' and surplus>0");
If($mysqli->affected_rows){
                     $mysqli->query("insert into zaszh_award(user_id,prize,create_date) values('{$user_id}','Xiaomi',unix_timestamp(now()))");
If($mysqli->affected_rows){
echo json_encode(array('status'=>'success','msg'=>'Xiaomi'));
                                                                                                              // Failed to win
                                                                                                                                                                                                                                                                                                                                                                   break;
case 'Polaroid':
                 $mysqli->query("update zaszh_prize_surplus set surplus=surplus-1 where prize='Polaroid' and surplus>0");
If($mysqli->affected_rows){
      having having having remaining
                     $mysqli->query("insert into zaszh_award(user_id,prize,create_date) values('{$user_id}','Polaroid',unix_timestamp(now()))");
If($mysqli->affected_rows){
echo json_encode(array('status'=>'success','msg'=>'Polaroid'));
                                                                                                              // Failed to win
                                                                                                                                                                                                                                                                                                                                                                   break;
          case '10 yuan phone bill':
                  $mysqli->query("update zaszh_telephone_charge_surplus set charge_surplus=charge_surplus-10 where date=substring(now(),1,10) and charge_surplus>=10");
If($mysqli->affected_rows){
   having having having having remaining
                    $mysqli->query("insert into zaszh_award(user_id,prize,create_date) values('{$user_id}','10 yuan phone fee',unix_timestamp(now()))");
If($mysqli->affected_rows){
                                                                                                                         echo json_encode(array('status'=>'success','msg'=>'10 yuan phone fee'));
                                                                                                              // Failed to win
                                                                                                                                                                                                                                                                                                                                                                   break;
           case '5 yuan call fee':
                  $mysqli->query("update zaszh_telephone_charge_surplus set charge_surplus=charge_surplus-5 where date=substring(now(),1,10) and charge_surplus>=5");
If($mysqli->affected_rows){
                     $mysqli->query("insert into zaszh_award(user_id,prize,create_date) values('{$user_id}','5 yuan phone fee',unix_timestamp(now()))");
If($mysqli->affected_rows){
                                            echo json_encode(array('status'=>'success','msg'=>'5 yuan phone fee'));
                                                                                                               // Failed to win
                                                                                                                                                                                                                                                                                                                                                                    break;
default:
echo json_encode(array('status'=>'success','msg'=>'Thank you for participating'));
}
}else{
// No points
echo json_encode(array('status'=>'error','msg'=>'You have insufficient points.'));
}
$mysqli->close();

I hope this article will be helpful to everyone’s PHP programming design.

http://www.bkjia.com/PHPjc/955396.html

PHP carousel lottery interface example, php carousel lottery_PHP tutorial

PHP carousel lottery interface example, php carousel lottery