Integrated the PHP database connection class ~~ Create a paging class!

I don't know if I want to learn PHP ~ The more you write, the less boring you are.

<? Php
Class createdb // Class start
{
Var $ db = "localhost"; // database address;
Var $ dbname = "root"; // user name;
Var $ dbpwd = ""; // password;
Var $ dbtable = "mysql"; // database used
Var $ conn; // database connection;
Var $ result; // result set
Var $ mysql; // The executed mysql
Var $ row; // find data in the result set
Function createconn () // This class method is to start a conn connection, and then start to select a database
{
$ This-> conn = mysql_connect ($ this-> db, $ this-> dbname, $ this-> dbpwd );
Mysql_select_db ($ this-> dbtable, $ this-> conn );
}
Function getresule () // This is a result set.
{
$ This-> result = mysql_query ($ this-> mysql, $ this-> conn );
}
Function getrow () // create a forward result set pointer
{
$ This-> row = mysql_fetch_array ($ this-> result );
Return $ this-> row;
}
Function closedatabase ()
{
Mysql_close ($ this-> conn );
}
} // When the class ends, the class is called to read mysql database data.
// Debug the database connection code! Not required.
/* $ Bb = new createdb; // class instantiation
$ Bb-> createconn (); // call the connection of the class
$ Bb-> mysql = "select * from friends_conf ";
$ Bb-> getresule (); // call the class to obtain the result set.
While ($ bb-> getrow () {// call the class to create a pointer to read data in a forward read loop,
Echo ($ bb-> row ["confname"]);
Echo ($ bb-> row ["confvalue"]);
}*/
?>
// Paging class ~ Inherits the above method
<? Php
Class pagefy extends createdb {
Var $ nametatol; // The total number of records
Var $ namemust = 1; // number of records to be displayed on each page
Var $ pageall;
Var $ I = 1;
Var $ m;
Var $ p = 8; // the page number to be displayed;
Var $;
Function gettatol () // Method for retrieving the total number of records
{// Connect to the database first
$ This-> nametatol = $ this-> row [0]; // The total number of records
}
Function getpage () // retrieve the total number of pages
{
$ This-> pageall = $ this-> nametatol % $ this-> namemust;
If ($ this-> pageall)
{
$ This-> pageall = (int) ($ this-> nametatol/$ this-> namemust) + 1;
Return $ this-> a = $ this-> pageall;
}
Else
{
Return $ this-> a = $ this-> pageall = (int) ($ this-> nametatol/$ this-> namemust );
}
}
Function num_pl () // page number display
{
$ This-> pageall = $ this-> pageall-($ this-> pageall-$ this-> p );
While ($ this-> pageall)
{
Echo ("<a href = 'pagefy. php? N = $ this-> I '> $ this-> I </a> ");
Echo (""); // you can add the desired style
$ This-> I ++;
$ This-> pageall = $ this-> pageall-1;
}
}
Function get_num_pl () // The previous parameter of the LIMIT (start ROW number)
{
$ This-> m = $ _ GET ["n"] * $ this-> namemust-$ this-> namemust;
}
Function showpage () // display the page content
{
$ This-> createconn ();
$ This-> mysql = "select * from friends_conf limit $ this-> m, $ this-> namemust ";
$ This-> getresule ();
While ($ this-> getrow ())
{
Echo ($ this-> row ["confname"]); // Add the field you want to read
Echo ($ this-> row ["confvalue"]);
}
}
Function firstpage () // Home Page
{
Echo ("<a href = 'pagefy. php? N = 1'> homepage <a> ");
}
Function backpage () // Previous Page
{
If ($ this-> I =$ _ GET ["n"]-1)
{
Echo ("<a href = 'pagefy. php? N = $ this-> I '> previous page <a> ");
}
}
Function nextpage () // next page
{
$ This-> I =$ _ GET ["n"] + 1;
If ($ this-> I <= $ this->)
{
Echo ("<a href = 'pagefy. php? N = $ this-> I '> next page <a> ");
}
}
Function footpage () // The last page
{
Echo ("<a href = 'pagefy. php? N = $ this-> a'> last page <a> ");
}
}
?>
<? Php // debugging
$ Mm = new pagefy;
$ Mm-> createconn ();
$ Mm-> mysql = "select count (*) from friends_conf ";
$ Mm-> getresule ();
$ Mm-> closedatabase ();
$ Mm-> getrow ();
$ Mm-> gettatol ();
$ Mm-> getpage ();
$ Mm-> num_pl ();
$ Mm-> get_num_pl ();
$ Mm-> showpage ();
$ Mm-> closedatabase ();
$ Mm-> firstpage ();
$ Mm-> backpage ();
$ Mm-> nextpage ();
$ Mm-> footpage ();
?>
This class has been debugged! Very easy to use ~~~~~~~~~~~~~~~~
Class is your knife ~ It's hard to wait until the fight starts !~ Dead ~~
I'm free! Write a functional class ~~~~~~
It should be said that my class ~~ Relatively simple ~~~ Questions you cannot understand ~