How to make pagination in PHP, mysql - php

Question

I wonder how to make pagination in PHP
May I ask you a favor of you?
This code have not error.
But I do not know what $current_page make
<?php
$con = mysqli_connect("localhost", "root", "", "dbdb") or die("error");
$page_size = 10;
$page_list_size = 10;
if (isset($_POST['search'])) {
$valueTosearch = $_POST['valueTosearch'];
$query = "SELECT * FROM `shipment` WHERE CONCAT(`Ship_Date`,`Model_No`,`Serial_No`)LIKE'%" . $valueTosearch . "%' ORDER BY Ship_Date DESC LIMIT $page_size";
$search_result = filterTable($query);
} else {
$query = "SELECT * FROM `shipment` ORDER BY Ship_Date DESC LIMIT $page_size";
$search_result = filterTable($query);
}
function filterTable($query) {
$con = mysqli_connect("localhost", "root", "", "dbdb");
$filter_Result = mysqli_query($con, $query);
return $filter_Result;
}
echo "<center><h1>info</h1></center> <br><br>";
$ret = mysqli_query($con, $query);
if ($ret) {
echo mysqli_num_rows($ret), " <br><br>";
$count = mysqli_num_rows($ret);
} else {
echo "error :" . mysqli_error($con);
exit();
}
$query = "SELECT count(*) FROM shipment";
$result_count = mysqli_query($con, $query);
$result_row = mysqli_fetch_array($result_count);
$total_row = $result_row[0];
if ($total_row <= 0)
$total_row = 0;
$total_page = ceil($total_row / $page_size);
$current_page = ceil();
?>
I wonder how to make pagination in PHP
May I ask you a favor of you?
This code have not error.
But I do not know what $current_page make

Answer 1

I think you have a mistake on the mysql query, limitting to $page_size you will get only a number of results = $page_size, but you will always get the $page-size 1st elements, if you want to page results you need to add offset.
This way first page will be $page_size elements with offset 0, second page $page_size elements with $page_size offset, and in general the nth page will be $page_size elements with (n-1) times $page_size offset.
In the last line you are missing an argument:
$current_page = ceil(); should be $current_page = ceil($lowest_element_in_result_set/$page_size);

Answer 2

$current_page should be the number of the page user want to view and this would be a input from user.
this is my implementation.
hope this will help you .
$pagenum = $_GET['pagenum'];//get the page number user want to view
$con = mysqli_connect("localhost", "root", "9272", "new_platform_7");
$query = 'select * from table1';
$filter_Result = mysqli_query($con, $query);//execute query without limit to get total number of rows
$rows = mysqli_num_rows($filter_Result);//total number of rows
if (!(isset($pagenum)))
{
$pagenum = 1;//if user hasn't give page number set page to page number 1
}
$page_rows = 30;//the page size (number of rows in each page)
$last = ceil($rows/$page_rows);//total number of pages //use ceil to avoid fractions
if ($pagenum < 1){ //if user give negative page number. set page number to 1
$pagenum = 1; //this will happen if user clicked the Previous page link when current page is 1
}elseif ($pagenum > $last) //if page number is greater than calculated number of pages . set page number to last page
{
$pagenum = $last; //this will happen if user clicked the next page link when current page is the last page
}
//($pagenum - 1) * $page_rows calculates where to start the lmit
$query.= ' limit ' .($pagenum - 1) * $page_rows .',' .$page_rows;//limit result
echo $query;
$filter_Result = mysqli_query($con, $query);//execute query with limits
//pagination links
echo 'First Page';
echo 'Previous Page';
echo 'Next Page';
echo 'Last Page';

Answer 3

Try this in a simple way.
<?php
$link = mysqli_connect("localhost","roo","","dbname");
if(!$link):
echo "something wrong with the database connection";
endif;
//check to see if the page (value) is available
if(isset($_GET['pageNo']):
$page = $_GET['pageNo'];
else:
$page = "";
endif;
if($page == "" || $page == 1):
$start_to_count_rowNo = 0;
else:
$start_to_count_rowNo = ($page * &item_displayed_per_page) - &item_displayed_per_page;
endif;
//here choose how many items do you want to display per page
&item_displayed_per_page = 10;
//Now select the data to display them
$query = "SELECT * FROM table_name LIMIT $start_to_count_rowNo, $item_displayed_per_page";
$readData = mysqli_query($link, $query);
//obtaining total number of data(rows) in a database
$sql = mysqli_query($link,"SELECT * FROM table_name");
$total_row = mysqli_num_rows($sql);
$pageNo = ceil($total_row / &item_displayed_per_page);
//using bootstrap add class pager in unordered list to style the list
?>
<ul class="pager">
<?php
//display out the page # like 1,2,3 ....
for($i = 0; $i <= $pageNo; $i++){
echo "</li><a href='pagename.php?pageNo={$i}'>{$i}</a></li>";
}
?>
</ul>