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time_nanosleep

(PHP 5)

time_nanosleepDelay for a number of seconds and nanoseconds

Description

mixed time_nanosleep ( int $seconds , int $nanoseconds )

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

Parameters

seconds

Must be a non-negative integer.

nanoseconds

Must be a non-negative 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

Changelog

Version Description
5.3.0 This function is now available on Windows platforms.

Examples

Example #1 time_nanosleep() example

<?php
// Careful! This won't work as expected if an array is returned
if (time_nanosleep(0500000000)) {
    echo 
"Slept for half a second.\n";
}

// This is better:
if (time_nanosleep(0500000000) === true) {
    echo 
"Slept for half a second.\n";
}

// And this is the best:
$nano time_nanosleep(2100000);

if (
$nano === true) {
    echo 
"Slept for 2 seconds, 100 microseconds.\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.";
}
?>

See Also

PHP Manual