PHP page preloader question

[gl3nnx]

guys i dunno if "page preloader" is the right term, but i have a question
i want to know how google display this

Results 1 - 10 of about 2,550,000 for asdf. (0.18 seconds)

How to detect the loading time of a page , is there any way to detect the and to capture the loading time of a page in PHP?

pls give me a sample script thanks.. by the way, this is my first time here 😉

[Trs2988]

Use microtime().

$starttime = microtime(true);

// rest of script goes here...

$loadedin = microtime(true) - $starttime;
echo "Page loaded in $loadedin seconds.";