Delay Function PHP

Question

please tell me how to make a delay function to delay functions!

DelayCommand(functionToDelay, Delaytime);

..? in php 5.3+

thanks for any help

score 3 · Accepted Answer · answered Jul 23 '11 at 22:42

3

function delayCommand($callback, $delayTime) {
    sleep($delayTime);
    $callback();
}

answered Jul 23 '11 at 22:42

karim79

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The problem with sleep though is that it affects the page on a global level even when it sits inside a function. This means you can't use this function in the middle of the page. Just to demonstrate my point, if you set the timer for 5 seconds and use the function in the middle of the page, the first half of the page would load but then the second half wouldn't load for 5 seconds. That draw back makes sleep seem like a pretty useless function to me. – Daniel Tonon Sep 25 '15 at 22:09
same issue i have @DanielTonon – Muhammad Ahmed Dec 30 '19 at 08:41

score 1 · Answer 2 · answered Jul 23 '11 at 22:42

1

This should work, consider switching out sleep() to usleep().

function DelayCommand($functionToDelay, $delayTimeInSeconds) {
    sleep($delayTimeInSeconds);
    $functionToDelay();
}

DelayCommand(function() { echo "yes"; }, 5);

(Code is untested)

answered Jul 23 '11 at 22:42

chelmertz

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score 1 · Answer 3 · answered Jul 23 '11 at 22:46

1

function delayCommay($function, $nano){
    usleep($nano);
    $function();
}

Will do the trick however it is synchronous. So if you make a call to delayCommand it will delay your whole script until it has run the command.

answered Jul 23 '11 at 22:46

Paul

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score 1 · Answer 4 · edited May 23 '17 at 12:17

1

If you want it done asynchronously, see my answer here: Scheduling php scripts

For your information, here's a list of related functions:

sleep() / usleep() - Sleep for an amount of (micro)seconds.
time_sleep_until() - Sleep until a timestamp.
time_nanosleep() - Sleep for an amount of seconds and nanoseconds.

edited May 23 '17 at 12:17

Community

1
1

answered Jul 23 '11 at 22:58

Christian

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score 0 · Answer 5 · answered Mar 07 '17 at 22:03

Here is what I have for delaying a function in MS, Sleep and Usleep pause the execution of the whole script, this seems to work pretty well

    public function DelayTime($ms){ 
         $now = microtime();
         $finishtime = ($now + $ms);

         while($now < $finishtime){ 
             $now = time();
             if($now >= $finishtime){ break; }
         }
         return true;
     }

Delay Function PHP

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