time_nanosleep Delay for a number of seconds and nanoseconds


time_nanosleep

(PHP 5)

time_nanosleepDelay for a number of seconds and nanoseconds

说明

mixed time_nanosleep ( int $seconds , int $nanoseconds )

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

参数

seconds

Must be a non-negative integer.

nanoseconds

Must be a non-negative integer less than 1 billion.

返回值

成功时返回 TRUE, 或者在失败时返回 FALSE.

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

更新日志

版本 说明
5.3.0 This function is now available on Windows platforms.

范例

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. ";
}

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

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

if (
$nano === true) {
    echo 
"Slept for 2 seconds, 100 microseconds. ";
} elseif (
$nano === false) {
    echo 
"Sleeping failed. ";
} elseif (
is_array($nano)) {
    
$seconds $nano['seconds'];
    
$nanoseconds $nano['nanoseconds'];
    echo 
"Interrupted by a signal. ";
    echo 
"Time remaining: $seconds seconds, $nanoseconds nanoseconds.";
}
?>

参见


«  timezone_version_get
» time_sleep_until
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