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PHP Manual
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sleep

(PHP 3, PHP 4, PHP 5)

sleep -- Delay execution

Description

int sleep ( int seconds )

The sleep() function delays program execution for the given number of seconds.

Example 1. sleep() example

<?php

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

// sleep for 10 seconds
sleep(10);

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

?>

This example will output (after 10 seconds) 

05:31:23
05:31:33

See also usleep() and set_time_limit()

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