sleep - suspend execution for an interval
subroutine sleep (itime)
Sleep causes the calling process to be suspended for itime seconds. The actual time can be up to 1 second less than itime due to granular-
ity in system timekeeping.
SEE ALSO sleep(3)4.2 Berkeley Distribution May 15, 1985 SLEEP(3F)
Check Out this Related Man Page
SLEEP(3) 1 SLEEP(3)sleep - Delay executionSYNOPSIS
int sleep (int $seconds)
Delays the program execution for the given number of $seconds.
- Halt time in seconds.
Returns zero on success, or FALSE on error.
If the call was interrupted by a signal, sleep(3) returns a non-zero value. On Windows, this value will always be 192 (the value of the
WAIT_IO_COMPLETION constant within the Windows API). On other platforms, the return value will be the number of seconds left to sleep.
If the specified number of $seconds is negative, this function will generate a E_WARNING.
|Version | |
| | |
| | Description |
| | |
| 5.3.4 | |
| | |
| | Before PHP 5.3.4, on Windows, sleep(3) always |
| | returns NULL when sleep has occurred, regardless |
| | of whether the sleep was interrupted or not. |
| | |
// current time
echo date('h:i:s') . "
// sleep for 10 seconds
// wake up !
echo date('h:i:s') . "
This example will output (after 10 seconds)
SEE ALSO usleep(3), time_nanosleep(3), time_sleep_until(3), set_time_limit(3).
PHP Documentation Group SLEEP(3)
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