• 计算回头率方法


    public function probability() {
    		global $_INPUT;
    		$ret        = array();
    		$time	    = $_INPUT['date'] && preg_match('/^d{4}-d{2}-d{2}$/', $_INPUT['date']) ? strtotime($_INPUT['date']) : strtotime('today');
    		$today      = $time;          //该天时间头
    		$tomorrow   = $time + 86400;  //该天时间尾
    		$flag       = 1;              //是否进入比赛
    		$model      = Model::getInstance('logs.fixedlog');
    		$paymodel   = Model::getInstance('main.payment');
    		$stats      = array();
    		$num        = 0;              //连续一周回头人数
    		$option     = isset($_INPUT['app']) ? intval($_INPUT['app']) : 1;
    		$interval   = isset($_INPUT['period']) ? intval($_INPUT['period']) : 1; //时间区间一周
    		if($option == 1) {
    			for($i = 0;$i <= $interval;$i++) {
    		        $res  = $model->turnround($today,$tomorrow,$flag);  //获取该天参加比赛的会员
    		        $temp = array(); 
    		        foreach($res as $value){
    		        	$inmatch = isset($value['inmatch']) ? json_decode($value['inmatch']) : array();
    		            foreach($inmatch as $val) {
    		            	if(!in_array($val, $temp)) {
    	                        array_unshift($temp,$val);  //去掉该天重复参加比赛会员
    		            	}
    		            }
    		        }
    		        $i==0 ? $total = count($temp) : "";     
    		        $temp = array_fill_keys($temp, $i);  //把会员记录导入stats数组
    		        foreach($temp as $k=>$v) {
    		        	if(array_key_exists($k,$stats)) {   //如果stats数组里面存着该会员ID,则尾部追加该登陆的每日号
    	                    $stats[$k] = $stats[$k].",".$v;
    		        	} else {
    		        		$stats[$k] = $v;
    		        	}
    		        }
    		        $today    = $today - 86400;   //逐次改变每日号起止时间
    	            $tomorrow = $tomorrow - 86400;        
    		    }
    			$strlen = ($interval+1)*2-1;
    			foreach($stats as $v) {
    				if(isset($v)) {
    					strlen(trim($v)) == $strlen ? $num++ : $num;
    				}		
    			}
    			$ret['turnround']['all']   = $stats;
    			$ret['turnround']['total'] = $total;
    			$ret['turnround']['stats'] = count($stats);
    			$ret['turnround']['num']   = $num;
    		} else {
    			$res  = $model->turnround($today,$tomorrow,$flag);  //获取该天参加比赛的会员
    			$temp = array(); 
    	        foreach($res as $value){
    	        	$inmatch = isset($value['inmatch']) ? json_decode($value['inmatch']) : array();
    	            foreach($inmatch as $val) {
    	            	if(!in_array($val, $temp)) {
                            array_unshift($temp,$val);  //去掉该天重复参加比赛会员
    	            	}
    	            }
    	        }  
    	        foreach($temp as $k=>$v) {
                    $paystatus = $paymodel->hasCharge($v,$tomorrow,$today-1);
                    isset($paystatus) && $paystatus['num']<>0 ? $num++ : "";
    
    	        }
                $ret['payrate']['all']   = $temp;
                $ret['payrate']['total'] = count($temp);
    			$ret['payrate']['num']   = $num;
    		}
    		return $this->ret($ret);
        }
    
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  • 原文地址:https://www.cnblogs.com/Fly-Wind/p/4527365.html
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