(PHP 4, PHP 5, PHP 7)
gettimeofday — Get current time
This is an interface to gettimeofday(2). It returns an associative array containing the data returned from the system call.
return_float
       When set to TRUE, a float instead of an array is returned.
      
   By default an array is returned. If return_float
   is set, then a float is returned.
  
Array keys:
| Version | Description | 
|---|---|
| 5.1.0 | The return_floatparameter was added. | 
Example #1 gettimeofday() example
<?php
print_r(gettimeofday());
echo gettimeofday(true);
?>
The above example will output something similar to:
Array
(
    [sec] => 1073504408
    [usec] => 238215
    [minuteswest] => 0
    [dsttime] => 1
)
1073504408.23910