usleep

(PHP 3, PHP 4, PHP 5)

usleep -- Delay execution in microseconds

Beskrivelse

void usleep ( int micro_seconds )

Delays program execution for the given number of micro seconds.

Parameterliste

micro_seconds

Halt time in micro seconds. A micro second is one millionth of a second.

Returneringsværdier

Ingen værdi er returneret.

ChangeLog

VersionBeskrivelse
5.0.0 This function now works on Windows systems.

Eksempler

Eksempel 1. usleep() example

<?php

// Current time
echo date('h:i:s') . "\n";

// wait for 2 seconds
usleep(2000000);

// back!
echo date('h:i:s') . "\n";

?>

Ovenstående eksempel vil udskrive:

11:13:28
11:13:30

Se også

sleep()
set_time_limit()