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PHP Usleep Function

Syntax


usleep($time);

Parameter Description
Time Time in microseconds

Definition & Usage

Usleep function is used to pause the execution of PHP script for the $number amount of time, time must be in microseconds. For example, if you want to pause script for 1 second write like that

usleep(1000000);

Note: Usleep function does not return anything.

Example of usleep function

<?php

usleep(3000000);
echo "Result after three second.";

?>

Output

Result after three second.

In the above example, the result will be appeared after 3 second.

More example of usleep function


<?php

echo "Start time:";
echo date('h:i:s') . "
"; usleep(4000000); echo "End time:"; echo date('h:i:s'); ?>

Output

Start time:11:30:39
End time:11:30:43

In the above example, You can see the start and end time of the script and the difference between both times is 4 second.

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