Return the current Unix timestamp with microseconds:
The microtime() function returns the current Unix timestamp with microseconds.
|get_as_float||Optional. When set to TRUE it specifies that the function should return a float, instead of a string. Default is FALSE|
|Return Value:||Returns the string "microsec sec" by default, where sec is the number of seconds since the Unix Epoch (0:00:00 January 1, 1970 GMT), and microsec is the microseconds part. If the get_as_float parameter is set to TRUE, it returns a float representing the current time in seconds since the Unix epoch accurate to the nearest microsecond|
|Changelog:||PHP 5.0.0: Added the get_as_float parameter|
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