如何筛选对象数组并检查最新的时间戳

Question

I want to create a restriction after a action for different id's, so I decided to store the entry time and id of the post into the session variable. Then I can fetch the recent timestamp and disallow the user to do that action to id for 5 minutes to stop spamming of queries

$vars = (object) array("idpost" => $idpost,"time" => time());
$_SESSION['ids'][] = $vars;

And if the count of the array is more than 5, then stop the execution of script. But after 5 min, proceed the script.

$neededObject = array_filter( //filtering the array for a specific idpost
    $_SESSION['ids'],
    function ($e) use ($idpost) {
        return $e->idpost === $idpost;
    }
);
if (count($neededObject) > 5){// user has used id it many times
   $timestamps = array_filter(
    $neededObject,
    function ($e) use ($idpost) {
        return $e->timestamp // do something here to check the recent timestamps from all others;
    }
}

I can't find a way to compare the most recent time stamp and check that if 5 mins have passed. How can I fetch the most recent timestamp and check that 5 minutes have passed? I can do this if i get the most recent timestamp from the array.

if (time() - $mostrecenttimestampfromarray < 5*60*60 ) // 5 mins have passed

Answer 1

I'm not sure what you're trying to achieve by using array_filter, is that necessary?

Can you loop through the neededObjects to find the latest timestamp and then check it. Something like this:

if ( count( $neededObject ) > 5 ) {

    $latestTimestamp = 0;

    foreach ( $neededObject as $object ) {

        if ( $object->time > $latestTimestamp ) {
            $latestTimestamp = $object->time;
        }       
    }

    if ( time() < $latestTimestamp + 5*60 ) {
        return;
    }   
}