php - How to break/pause a loop for X time then start same loop again? -

i have php while loop sends 3 random numbers 5 in 5 seconds each number sleep(5) function.

what want when first loop finishes, want break 60 seconds start same loop again.

$i= 1 do{     $one = mt_rand(1, 99);     $two = mt_rand(1, 99);     $three = mt_rand(1, 99);     $this->sendmessage( 'number: '.$one.'' );     sleep(5);     $this->sendmessage( 'number: '.$two.'' );     sleep(5);     $this->sendmessage( 'number: '.$three.'' );     sleep(5);     $this->sendmessage( 'the 3 random numbers has been send, 3 numbers show in 60 seconds.' );     $i++; } while ($i<100); 

and here want pause loop 60 seconds, don't want use sleep function pause; want use break stops loop , after 60 seconds starts again.

i have using cli task start code.

i guess might become possible using php threads. see php manual, examples, etc. if wrong, may how async functions calls