php连续留存与留存人数计算

for($i = 0;$i <= $interval;$i++) {
        $res  = $model->turnround($today,$tomorrow,$flag); 
        $temp = array(); 
        foreach($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);  
            
}
            }
        }
        $i==0 ? $total = count($temp) : "";     
        $temp = array_fill_keys($temp, $i); 
        foreach($temp as $k=>$v) {
        
if(array_key_exists($k,$stats)) { 
                    $stats[$k] = $stats[$k].",".$v;
        
} else {
        
$stats[$k] = $v;
        
}
        }
        $today    = $today + 86400; 
            $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; 
*/
$res = $model->turnround($today,$tomorrow,$flag); 
            $todayPeople = array(); 
        foreach($res as $value){
        
$inmatch = isset($value['inmatch']) ? json_decode($value['inmatch']) : array();
            foreach($inmatch as $val) {
            
if(!in_array($val, $todayPeople)) {
                        array_unshift($todayPeople,$val);  
            
}
            }
        }
        $todayNum   = count($todayPeople);  
        $atToday    = $today + $interval*86400;
        $atTomorrow = $tomorrow + $interval*86400; 
        $atRes = $model->turnround($atToday,$atTomorrow,$flag); 
        $atPeople = array(); 
        foreach($atRes as $v){
        
$atInmatch = isset($v['inmatch']) ? json_decode($v['inmatch']) : array();
            foreach($atInmatch as $val) {
            
if(!in_array($val, $atPeople)) {
                        array_unshift($atPeople,$val);  
            
}
            }
        }
        $same = array_intersect($todayPeople,$atPeople);
        $atNum= count($same);
        $ret['turnround']['all']   = $todayPeople;   
$ret['turnround']['total'] = $todayNum;      
$ret['turnround']['stats'] = "";    
$ret['turnround']['num']   = $atNum;      

以上就介绍了php 连续留存与留存人数计算，包括了方面的内容，希望对PHP教程有兴趣的朋友有所帮助。