usleep

Definition and usage

The usleep() function delays the execution of the current script by the specified number of microseconds (one microsecond is equal to one millionth of a second).

Example

Delay the current script execution by 3 seconds (30000000 microseconds):

 <?php
echo date ( 'h:i:s' ) . "<br>" ;

// Pause for 3 seconds
usleep ( 3000000 ) ;

// Start again
echo date ( 'h:i:s' ) ;
?>

Try it yourself

grammar

 usleep ( microseconds )

Return value

No return value.