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Definition and usage

The PHP function Microtime () returns the current Unix timestamp and the number of microseconds.

php function Microtime () syntax

Microtime (Get_as_float)

php function microtime () parameter and description

Get_as_float if the Get_as_float parameter is given and its value is equivalent to TRUE, the function returns a floating-point number.

Description

PHP functions Microtime () are only available under operating systems that support Gettimeofday () system calls.

If called without optional arguments, this function returns a string in the format "msec sec", where the SEC is the number of seconds since the Unix era (0:00:00 January 1, 1970 GMT) and msec is the microsecond portion. The two parts of a string are returned in seconds.

php function Microtime () example

 
  

  
   
< ? PHP  
  
   
Echo (Microtime ());  
  
   
?>
 
  

Output:

0.25139300 1138197510

The PHP function Microtime () is typically used as follows:

 
  

  
   
< ? PHP  
  
   
$ Mtime = Explode (', microtime ());
  
   
$ StartTime = $mtime [1]+ $mtime [0];  
  
   
Echo $startTime;  
  
   
?>
 
  

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