Delay execution of the current script for 5 seconds:
The sleep() function delays execution of the current script for a specified number of seconds.
Note: This function throws an error if the specified number of seconds is negative.
|seconds||Required. Specifies the number of seconds to delay the script|
|Return Value:||Returns 0 on success, or FALSE on error.
This function returns a non-zero value if the call was interrupted by a signal. On Windows, this value will always be 192, which is the value of the WAIT_IO_COMPLETION constant within the Windows API. On other platforms, the return value will be the number of seconds left to sleep.
|Changelog:||Before PHP 5.3.4, this function always returns NULL when sleep has occurred on Windows.|