Sorting Arrays

[eluser]cristian_c[/eluser]
I have an array of 1 to 100 records
Im trying to do pagination. How can I collect 5 records at a time.

exemple

< id => '0', name => 'Charlie1', last_name => 'Smith' >
< id => '1', name => 'Charlie2', last_name => 'Smith' >
< id => '2', name => 'Charlie3', last_name => 'Smith' >
< id => '3', name => 'Charlie4', last_name => 'Smith' >
< id => '4', name => 'Charlie5', last_name => 'Smith' >
< id => '5', name => 'Charlie6', last_name => 'Smith' >
< id => '6', name => 'Charlie7', last_name => 'Smith' >
< id => '7', name => 'Charlie8', last_name => 'Smith' >
< id => '8', name => 'Charlie9', last_name => 'Smith' >
< id => '9', name => 'Charlie10', last_name => 'Smith' >

so what I need is to collect the record based on my url http://www.mysite.com/page/5
so the result need to start a record 5 with a limit off 5 records