H5九宫格抽奖，带php文件，完完整整，拿来即用

<?php // $data['prize']='一等奖'; // $data['giftid']=1; // $data['stoped']=1; // echo json_encode($data); //根据概率获取奖项 function getRand($proArr) { $data = ''; $proSum = array_sum($proArr); //概率数组的总概率精度 foreach ($proArr as $k => $v) { //概率数组循环 $randNum = mt_rand(1, $proSum); if ($randNum <= $v) { $data = $k; break; } else { $proSum -= $v; } } unset($proArr); return $data; } //prize表示奖项内容，v表示中奖几率(若数组中七个奖项的v的总和为100，如果v的值为1，则代表中奖几率为1%，依此类推) $jpdata = array( '0' => array('id' => 0, 'prize' => '谢谢参与', 'v' => 50), '1' => array('id' => 1, 'prize' => '苹果手机', 'v' => 1), '2' => array('id' => 2, 'prize' => '10元红包', 'v' => 5), '3' => array('id' => 3, 'prize' => '蓝牙耳机', 'v' => 5), '4' => array('id' => 4, 'prize' => '20元红包', 'v' => 5), '5' => array('id' => 5, 'prize' => '1元红包', 'v' => 20), '6' => array('id' => 6, 'prize' => '女士包', 'v' => 4), '7' => array('id' => 7, 'prize' => '1000金币', 'v' => 10), ); foreach ($jpdata as $key=>$value) { $arr[$value['id']] = $value['v']; } //根据概率获取奖项id $data['id']=getRand($arr); //获取前端奖项位置 foreach($jpdata as $k=>$v){ if($v['id'] == $data['id']){ $data['prize'] = $v['prize']; break; } } $data['stoped']=$data['id']; echo json_encode($data);