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First we have to connect to our database:
// Connect to your database
$mysql_con = mysql_connect("localhost", "Username", "Password");
// Let's check if there were any errors
if(!$mysql_con){
// If there was ań error, if there was, lets display an error
die(mysql_error());
}
// Select your database
$mysql_db = mysql_select_db("MyDatabase");
// If there were any errors with selecting your database, display an error
if(!$mysql_db){
die(mysql_error());
}
Now we are connected to database.. Let's get our information.
First we need to get our page number:
// If the page wasn't set, lets set $page to number 1 for the first page
if($page == ""){
$page = "1";
}else{
// If page is set, lets get it
$page = $_GET['page'];
}
Now we need to get all messages from database and count them:
// Now lets get all messages from your database $sql = "SELECT * FROM messages"; $query = mysql_query($sql); // Lets count all messages $num = mysql_num_rows($query);
When these things are done.. lets set our numbers:
// Lets set how many messages we want to display $per_page = "10"; // Now we must calculate the last page $last_page = ceil($num/$per_page); // And set the first page $first_page = "1";
Now it's time for "Next" , "Previous" First and last page..
:
// Here we are making the "First page" link
echo "<a href='?page=".$first_page."'>First page</a> ";
// If page is 1 then remove link from "Previous" word
if($page == $first_page){
echo "Previous ";
}else{
if(!isset($page)){
echo "Previous ";
}else{
// But if page is set and it's not 1.. Lets add link to previous word to take us back by one page
$previous = $page-1;
echo "<a href='?page=".$previous."'>Previous</a> ";
}
}
// If the page is last page.. lets remove "Next" link
if($page == $last_page){
echo "Next ";
}else{
// If page is not set or it is set and it's not the last page.. lets add link to this word so we can go to the next page
if(!isset($page)){
$next = $first_page+1;
echo "<a href='?page=".$next."'>Next</a> ";
}else{
$next = $page+1;
echo "<a href='?page=".$next."'>Next</a> ";
}
}
// And now lets add the "Last page" link
echo "<a href='?page=".$last_page."'>Last page</a>";
Now lets do some math and get our messages :
// Math.. It gets us the start number of message that will be displayed
$start = ($page-1)*$per_page;
// Now lets set the limit for our query
$limit = "LIMIT $start, $per_page";
// It's time for getting our messages
$sql = "SELECT * FROM messages $limit";
$query = mysql_query($sql);
echo "<br /><br />";
// And lets display our messages
while($row = mysql_fetch_array($query) or die(mysql_error())){
echo $row['message']."<br />";
}
Voila.. it wasn't that hard right ?
Here's the full code with comments:
<?php
// Connect to your database
$mysql_con = mysql_connect("localhost", "Username", "Password");
// Let's check if there were any errors
if(!$mysql_con){
// If there was ań error, if there was, let's display an error
die(mysql_error());
}
// Select your database
$mysql_db = mysql_select_db("MyDatabase");
// If there were any errors with selecting your database, display an error
if(!$mysql_db){
die(mysql_error());
}
// If the page wasn't set, lets set $page to number 1 for the first page
if($page == ""){
$page = "1";
}else{
// If page is set, let's get it
$page = $_GET['page'];
}
// Now lets get all messages from your database
$sql = "SELECT * FROM messages";
$query = mysql_query($sql);
// Lets count all messages
$num = mysql_num_rows($query);
// Lets set how many messages we want to display
$per_page = "10";
// Now we must calculate the last page
$last_page = ceil($num/$per_page);
// And set the first page
$first_page = "1";
// Here we are making the "First page" link
echo "<a href='?page=".$first_page."'>First page</a> ";
// If page is 1 then remove link from "Previous" word
if($page == $first_page){
echo "Previous ";
}else{
if(!isset($page)){
echo "Previous ";
}else{
// But if page is set and it's not 1.. Lets add link to previous word to take us back by one page
$previous = $page-1;
echo "<a href='?page=".$previous."'>Previous</a> ";
}
}
// If the page is last page.. lets remove "Next" link
if($page == $last_page){
echo "Next ";
}else{
// If page is not set or it is set and it's not the last page.. lets add link to this word so we can go to the next page
if(!isset($page)){
$next = $first_page+1;
echo "<a href='?page=".$next."'>Next</a> ";
}else{
$next = $page+1;
echo "<a href='?page=".$next."'>Next</a> ";
}
}
// And now lets add the "Last page" link
echo "<a href='?page=".$last_page."'>Last page</a>";
// Math.. It gets us the start number of message that will be displayed
$start = ($page-1)*$per_page;
// Now lets set the limit for our query
$limit = "LIMIT $start, $per_page";
// It's time for getting our messages
$sql = "SELECT * FROM messages $limit";
$query = mysql_query($sql);
echo "<br /><br />";
// And lets display our messages
while($row = mysql_fetch_array($query) or die(mysql_error())){
echo $row['message']."<br />";
}
?>
I hope it helped you a little
Regards,
Jaan
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