This statistic i made from one of my website's(education cathegory: http://www.xaricidil.net ) user database.(i made it in 2009-09-19) Users - gender Male - 55.33 % Female - 44.67 %. Users - emails Mail.ru - 31.8 % Yahoo! - 18.7 % Box.az - 10.4 % Hotmail - 8.1 % Gmail - 7.5 % Other mails - 23.5 %. Users - education Secondary school - 15.8 % Bachelor - 51.3 % Master degree - 9.9 % Doctorate degree - 1 % Graduated - 11.1 % Other - 10.9 % Very interesting results. :)
Class in PHP is very useful tool. Using classes is object-oriented part of php. Simple sample: Create class.php and write this code there: class myobject { function f1 ($variable1,$variable2); { echo $variable1.' - '.$variable2; } } Then create index.php file and place this code there: include("class.php"); mynewobject=new myobject(); $mynewobject->f1('Name','Surname'); The resut will be such: Name - Surname