Question

How to delay for a number of seconds and nanoseconds using time_nanosleep() in PHP

Answer 1

if (time_nanosleep(0, 500000000)) 
    echo "half a second sleep<br />";



 
/*
run:
     
half a second sleep
     
*/

 

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Answer 2

if (time_nanosleep(0, 999999999)) 
    echo "almost 1 second sleep";

 
/*
run:
     
almost 1 second sleep 
     
*/

 

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Answer 3

if (time_nanosleep(1, 0)) 
    echo "1 second sleep";

 
/*
run:
     
1 second sleep 
     
*/

 

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Answer 4

$nanosleep = time_nanosleep(1, 100000);

if ($nanosleep === true) 
    echo "1 seconds, 100 microseconds sleep";
elseif ($nanosleep === false) 
        echo "sleep failed";

 
/*
run:
     
1 seconds, 100 microseconds sleep 
     
*/

 

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