paging like stackoverflow's

Question

i\'m a newbie in php especially on making pagination.

my question is, how to make paging like stackoverflow\'s pagination?
i mean paging like this :

1

Answer 1

Somewhat like this(pseudo-code):

pg = CurrentPageNo
low = 1
high = MAX_PAGES
if (pg-low <=5)
    output 1 to pg-1 [with links]
else
    output 1..3 [with links]
    output "..."
    output (pg-3) to (pg-1) [with links]

output pg

if (high - pg <=5)
    output pg+1 to high  [with links]
else
    output (pg+1) to high-3 [with links]
    output "..."
    output (high-2) to high [with links]