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Learn how to implement pagination in php

In this tutorial today we will learn how to implement pagination in php.Pagination in PHP helps to access multiple pages instead of accessing them one by one seperately.

To learn how to implement pagination in php follow the steps given below :

First of all download and install xampp server in your machine .

Now go to your xampp folder i.e the folder you have installed your xampp .

Open the xampp control pannel from this xampp folder and you will get the following window :

Now start the Apache and MySQL modules as shown in the above image .

Let’s create a database which we will be accessing in this session.

Open up your browser and enter the following url : localhost/phpmyadmin and you will get the following window :

Now enter username and password and click on the GO button , you will be navigated to the following window , where you have to click on the Database tab and then enter your database name and finally click on the create button and your database is generated in the database list at the left hand side as shown in the image :

Now select the database from the list then you will get the following window where you have to select the SQL tab as shown in the image :

After selecting the SQL tab you will get the query box where you have to write the following query to create a table :

CREATE TABLE IF NOT EXISTS `fruits` ( `id` int(5) NOT NULL AUTO_INCREMENT, `name` varchar(21) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=11 ;

Here is the screen shot for the code :

After writing the query click on the GO button .

Now again click on the SQL tab where a query box will appear and insert the following values into the table :

INSERT INTO `fruits` (`id`, `name`) VALUES (1, 'Mango'), (2, 'Jackfruit'), (3, 'Guava'), (4, 'Apple'), (5, 'Strawberry'), (6, 'Banana'), (7, 'Custard Apple'), (8, 'Musk Melon'), (9, 'Water Melon'), (10, 'Pineapple');

Here is the screen shot for the code :

After that click on the GO button to execute the query.

Now we have the database as follows:

Now create a Folder inside the xampp\htdocs and name the folder for example as testing .

Inside the testing folder create a file called as fruit.php:

Now write the following code as per instruction inside the fruit.php file .

<?php //Local host connection mysql_connect("localhost","root","1234") or die (mysql_error()); mysql_select_db("ijdb") or die (mysql_error()); //select the table $sql = mysql_query("SELECT name from fruits"); // Logic // // Get total of Num rows from the database query $nr = mysql_num_rows($sql); // Get pn from URL vars if it is present if (isset($_GET['pn'])) // filter everything but numbers for security(new) $pn = preg_replace('#[^0-9]#i', '', $_GET['pn']); // filter everything but numbers for security(deprecated) $pn = ereg_replace("[^0-9]", "", $_GET['pn']); else // If the pn URL variable is not present force it to be value of page number 1 $pn = 1; //This is where we set how many database items to show on each page $itemsPerPage = 1; // Get the value of the last page in the pagination result set $lastPage = ceil($nr / $itemsPerPage); // Be sure URL variable $pn(page number) is no lower than page 1 and no higher than $lastpage if ($pn < 1) // If it is less than 1 $pn = 1; // force if to be 1 // if it is greater than $lastpage else if ($pn > $lastPage) // force it to be $lastpage's value $pn = $lastPage; // This creates the numbers to click in between the next and back buttons $centerPages = ""; $sub1 = $pn - 1; $sub2 = $pn - 2; $add1 = $pn + 1; $add2 = $pn + 2; if ($pn == 1) $centerPages .= '  <span class="pagNumActive">' . $pn . '</span>  '; $centerPages .= '  <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $add1.'">' . $add1 . '</a>  '; else if ($pn == $lastPage) $centerPages .= '  <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $sub1 . '">' . $sub1 . '</a>  '; $centerPages .= '  <span class="pagNumActive">' . $pn . '</span>  '; else if ($pn > 2 && $pn < ($lastPage - 1)) $centerPages .= '  <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $sub2 . '">' . $sub2 . '</a>  '; $centerPages .= '  <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $sub1 . '">' . $sub1 . '</a>  '; $centerPages .= '  <span class="pagNumActive">' . $pn . '</span>  '; $centerPages .= '  <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $add1 . '">' . $add1 . '</a>  '; $centerPages .= '  <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $add2 . '">' . $add2 . '</a>  '; else if ($pn > 1 && $pn < $lastPage) $centerPages .= '  <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $sub1 . '">' . $sub1 . '</a>  '; $centerPages .= '  <span class="pagNumActive">' . $pn . '</span>  '; $centerPages .= '  <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $add1 . '">' . $add1 . '</a>  '; // This line sets the "LIMIT" range. the 2 values we place to choose a range of rows from database in our query $limit = 'LIMIT ' .($pn - 1) * $itemsPerPage .',' .$itemsPerPage; // Now we are going to run the same query as above but this time add $limit onto the end of the SQL syntax // $sql2 is what we will use to fuel our while loop statement below $sql2 = mysql_query("SELECT name FROM fruits $limit"); // Logic Ends // // Pagination Display Setup Begins // Initialize the pagination output variable $paginationDisplay = ""; // This code runs only if the last page variable is not equal to 1,else we dont need pagination if ($lastPage != "1") // This shows the user what page they are on, and the total number of pages $paginationDisplay .= 'Page <strong>' . $pn . '</strong> of ' . $lastPage. '      '; // If we are not on page 1 we can place the Back button if ($pn != 1) $previous = $pn - 1; $paginationDisplay .= '  <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $previous . '"> Back</a> '; // Lay in the clickable numbers display here between the Back and Next links $paginationDisplay .= '<span class="paginationNumbers">' . $centerPages . '</span>'; // If we are not on the very last page we can place the Next button if ($pn != $lastPage) $nextPage = $pn + 1; $paginationDisplay .= '  <a href="' . $_SERVER['PHP_SELF'] . '?pn=' . $nextPage . '"> Next</a> '; //// END Pagination Display Setup // Build the Output Section Here $outputList = ''; while($row = mysql_fetch_array($sql2)) $name = $row["name"]; $outputList .= '<h1>' . $name . '</h1><br />'; // close while loop ?> Now we have to give heading and the styling to our page as follows <html> <head> <title>Pagination</title> <style type="text/css">  </style> </head> <body> <div style="margin-left:64px; margin-right:64px;"> <h2>Total Items: <?php echo $nr; ?></h2> </div> <div style="margin-left:58px; margin-right:58px; padding:6px; background-color:#FFF; border:#999 1px solid;"> <?php echo $paginationDisplay; ?></div> <div style="margin-left:64px; margin-right:64px;"><?php print "$outputList"; ?></div> <div style="margin-left:58px; margin-right:58px; padding:6px; background-color:#FFF; border:#999 1px solid;"> <?php echo $paginationDisplay; ?></div> </body> </html>

Here are the screen shots for the code :

Now open up the browser and enter the following url : localhost/testing/fruits.php and you will have the following output :

Thus we have successfully learnt how to implement pagination in php .

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