[SOLVED] What is more precise microtime() or microtime(TRUE)?

[WolfRage]

What is more precise microtime() or microtime(TRUE)?

I know that microtime() is measured in microseconds.

What is microtime(TRUE) as a unit of measurement?

[metrostars]

Same

 

the 1st means it is returned like

 

 

123456 12

 

the TRUE bit returns in like 12.123456

 

the first does it in microseconds followed by seconds.

[Daniel0]

Neither. They're just formatted differently.

[WolfRage]

How would I compare two out puts in either format to get the exact time difference? Please elaborate on which piece means which.

[.josh]

They both return the same info, but in a different format.  It's like the date.

 

July 19, 2009 is the same thing as 2009-07-19.  It's just formatted differently.  Get it?

[WolfRage]

Never mind don't know why I wasted my time.

[.josh]

Don't blame us if you aren't understanding. 

 

microtime() and microtime(true) both return the same thing, only in a different format.  So it's not a matter of which one is more precise, but a matter of  how you want the result to be formatted.  Do you want it in

 

"seconds.microseconds" ex: 123.456

 

or

 

"microseconds seconds" 456 123

 

what part of that don't you understand?

[thebadbad]

And if you're still wondering how to compare the two formats, you can simply add the two parts returned by microtime() to get a float, since they're both in units of seconds (metrostars and CV were a bit off on that part ). From the manual:

 

list($usec, $sec) = explode(' ', microtime());
$float = ((float) $usec + (float) $sec);

$float can then be directly compared to what's returned by microtime(true).