PHP4 User Manual: function-usleep. Usleep (PHP3, PHP44.0.0) usleep-description of the number of milliseconds in which the voidusleep (intmicro_seconds) usleep () function pauses the number of milliseconds specified by micro_seconds
(PHP 3, PHP 4> = 4.0.0) usleep-description of the number of milliseconds to suspend execution
Void usleep (int micro_seconds)
The number of milliseconds specified by micro_seconds for executing the usleep () function.
For more information, see fancyfunction.sleep.html> sleep ().
Note: This function cannot work in Windows.
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