Function duration

A duration (in decimal seconds) between two times which are the result of calls to microtime()

This simple function is used by the PgQuery class because the microtime function doesn't return a decimal time, so a simple subtraction is not sufficient.

Package: awl\PgQuery
Copyright: Catalyst IT Ltd, Morphoss Ltd http://www.morphoss.com/
License: GNU GPL v2 or later
Author: Andrew McMillan andrew@mcmillan.net.nz
Located at PgQuery.php

Parameters summary
`microtime`	`$t1`	start time
`microtime`	`$t2`	end time

Return value summary
`float`	difference