Php/docs/function.usleep
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usleep
(PHP 4, PHP 5, PHP 7)
usleep — Delay execution in microseconds
Description
usleep
( int $micro_seconds
) : void
Delays program execution for the given number of microseconds.
Parameters
micro_secondsHalt time in microseconds. A microsecond is one millionth of a second.
Note:
On Windows, the system may sleep longer that the given number of microseconds, depending on the hardware.
Return Values
No value is returned.
Examples
Example #1 usleep() example
<?php// Current timeecho date('h:i:s') . "\n";// wait for 2 secondsusleep(2000000);// back!echo date('h:i:s') . "\n";?>
The above example will output:
11:13:28 11:13:30
See Also
- sleep() - Delay execution
- time_nanosleep() - Delay for a number of seconds and nanoseconds
- time_sleep_until() - Make the script sleep until the specified time
- set_time_limit() - Limits the maximum execution time
