Obtaining various fractions of time, using the microtime() function

gistfile1.php

<?php

$time = microtime(true);

$seconds = (int) $time;
$milliseconds = (int) ($time * 1000);
$microseconds = (int) ($time * 1000000);
$nanoseconds = (int) ($time * 1000000000);

echo    "seconds     : $seconds\n"
    ,   "milliseconds: $milliseconds\n"
    ,   "microseconds: $microseconds\n"
    ,   "nanoseconds : $nanoseconds\n";

printf( "precision   : %.0f", $time * 100000000000000000000000000000000000000000000000000000000000000000000);



/*  A possible output:

seconds     : 1361442556
milliseconds: 1361442556214
microseconds: 1361442556214164
nanoseconds : 1361442556214163968
precision   : 136144255621416399633292374207085482089200595846391010716637640051976661106688 
                               ^^ --- Not sure how precise this is...
*/