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PHP Misc Reference : Delay execution of the current script for 3 seconds
The sleep() function delays execution of the current script for a specified number of seconds.
Parameter | Description |
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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. |
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PHP Version: | 4+ |
Changelog: | Before PHP 5.3.4, this function always returns NULL when sleep has occurred on Windows. |
❮ PHP Misc Reference