time_nanosleep

Description

Delays program execution for the given number of seconds and nanoseconds.

seconds must be a positive integer, and nanoseconds must be a positive integer less than 1 billion.

Return Values

Returns TRUE on success or FALSE on failure.

If the delay was interrupted by a signal, an associative array will be returned with the components:

• seconds - number of seconds remaining in the delay

• nanoseconds - number of nanoseconds remaining in the delay

See Also

sleep(), usleep(), set_time_limit()

Examples

Example 1. time_nanosleep() example <?php // Careful! This won't work as expected if an array is returned if (time_nanosleep(0, 500000000)) {     echo "Slept for half a second.\n"; } // This is better: if (time_nanosleep(0, 500000000) === true) {     echo "Slept for half a second.\n"; } // And this is the best: $nano = time_nanosleep(2, 100000); if ($nano === true) {     echo "Slept for 2 seconds, 100 milliseconds.\n"; } elseif ($nano === false) {     echo "Sleeping failed.\n"; } elseif (is_array($nano)) {     $seconds = $nano['seconds'];     $nanoseconds = $nano['nanoseconds'];     echo "Interrupted by a signal.\n";     echo "Time remaining: $seconds seconds, $nanoseconds nanoseconds."; } ?>