usleep
(PHP 3, PHP 4 , PHP 5)
usleep -- Delay execution in microseconds
Description
void
usleep ( int micro_seconds)
The usleep() function delays program execution
for the given number of micro_seconds. A
microsecond is one millionth of a second.
例子 1. usleep() example
<?php
// Current time
echo date('h:i:s') . "\n";
// wait for 2 secondes
usleep(2000000);
// back!
echo date('h:i:s') . "\n";
?>
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This script will output :
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注:
This function did not work on Windows systems until PHP 5.0.0
See also sleep() and
set_time_limit().