How to Make PHP Pagination Start on Page 1 Rather Than Page 0?
Question
I've been working with a basic PHP/PDO pagination script I found online.
I've got it customized to my needs (I just need to do some basic layout work); the only thing that's left is getting the pagination to work the same way as every other professional website. And by that I mean getting the pagination to start on page 1 rather than page 0. Have you ever heard of "page 0"? I sure haven't: (Edit, I use a modified version of this script on my website and use an .htaccess file that changes the URL of page 0. index?php,start=0. to /page/0/, Upon reflection, I can now appreciate the logic of having the URL of the first page contain "start=0." since Google does the same thing, Nevertheless, this question stands because, unlike Google. this script suggests there's a page 0.)
Here are the relevant files:
configuration.php
<?php
// define database related variables
$database = 'db';
$host = 'hostname';
$user = 'username';
$pass = 'password';
// try to connect to database
$db = new PDO("mysql:dbname={$database};host={$host};port={3306}", $user, $pass);
if(!$db){
echo "Error in database connection";
}
?>
data.php
<?php
//include configuration file
require 'configuration.php';
$start = 0; $per_page = 4;
$page_counter = 0;
$next = $page_counter + 1;
$previous = $page_counter - 1;
if(isset($_GET['start'])){
$start = $_GET['start'];
$page_counter = $_GET['start'];
$start = $start * $per_page;
$next = $page_counter + 1;
$previous = $page_counter - 1;
}
// query to get messages from messages table
$q = "SELECT * FROM students LIMIT $start, $per_page";
$query = $db->prepare($q);
$query->execute();
if($query->rowCount() > 0){
$result = $query->fetchAll(PDO::FETCH_ASSOC);
}
// count total number of rows in students table
$count_query = "SELECT * FROM students";
$query = $db->prepare($count_query);
$query->execute();
$count = $query->rowCount();
// calculate the pagination number by dividing total number of rows with per page.
$paginations = ceil($count / $per_page);
?>
index.php
<html>
<head>
<title>Pagination</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" />
</head>
<body>
<?php include_once 'data.php'; ?>
<div class="table-responsive" style="width: 600px; border: 1px solid black; margin: 10px;">
<table class="table table-striped" class="table table-hover">
<thead class="table-info">
<th scope="col" class="bg-primary" >Id</th>
<th scope="col" class="bg-primary">First Name</th>
<th scope="col" class="bg-primary">Last Name</th>
<th scope="col" class="bg-primary">Email</th>
</thead>
<tbody>
<?php
foreach($result as $data) {
echo '<tr>';
echo '<td>'.$data['id'].'</td>';
echo '<td>'.$data['first_name'].'</td>';
echo '<td>'.$data['last_name'].'</td>';
echo '<td>'.$data['email'].'</td>';
echo '</tr>';
}
?>
</tbody>
</table>
<center>
<ul class="pagination">
<?php
if($page_counter == 0){
echo "<li><a href=?start='0' class='active'>0</a></li>";
for($j=1; $j < $paginations; $j++) {
echo "<li><a href=?start=$j>".$j."</a></li>";
}
}else{
echo "<li><a href=?start=$previous>Previous</a></li>";
for($j=0; $j < $paginations; $j++) {
if($j == $page_counter) {
echo "<li><a href=?start=$j class='active'>".$j."</a></li>";
}else{
echo "<li><a href=?start=$j>".$j."</a></li>";
}
}if($j != $page_counter+1)
echo "<li><a href=?start=$next>Next</a></li>";
}
?>
</ul>
</center>
</div>
</body>
</html>
I think this might just be a matter of changing some 0's to 1's. I've already tried some combinations using this method, but I'm not sure what I'm doing.
The closest the article comes to mentioning how to change this pagination idiosyncrasy is by saying, "on the first page the page counter is 0, which is stored in $page_counter." So someone, such as myself, might conclude you only need to change the value of that variable to 1. If only it was that easy!
1 answers
solution1
-1 2021-01-16 17:06:04
Here is how I would modify this (I don't have a way to test this so there might be some bugs): PHP:
<?php
//include configuration file
require 'configuration.php';
$start = 0;
$per_page = 4;
$page_counter = 1;
$next = $page_counter + 1;
$previous = $page_counter - 1;
if(isset($_GET['start'])){
// $start = $_GET['start'];
$page_counter = (int) $_GET['start'];
$start = ($page_counter - 1) * $per_page;
$next = $page_counter + 1;
$previous = $page_counter - 1;
}
// query to get messages from messages table
$q = "SELECT * FROM students LIMIT $start, $per_page";
$query = $db->prepare($q);
$query->execute();
if($query->rowCount() > 0){
$result = $query->fetchAll(PDO::FETCH_ASSOC);
}
// count total number of rows in students table
// Feels like doing "SELECT COUNT(*) as qty FROM students" may save some memory for the script as in this case you won't be loading entire table into your PDO library but just the total number of records value.
$count_query = "SELECT * FROM students";
$query = $db->prepare($count_query);
$query->execute();
$count = $query->rowCount();
// calculate the pagination number by dividing total number of rows with per page.
$paginations = ceil($count / $per_page);
?>
Html:
<html>
<head>
<title>Pagination</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" />
</head>
<body>
<?php include_once 'data.php'; ?>
<div class="table-responsive" style="width: 600px; border: 1px solid black; margin: 10px;">
<table class="table table-striped" class="table table-hover">
<thead class="table-info">
<th scope="col" class="bg-primary" >Id</th>
<th scope="col" class="bg-primary">First Name</th>
<th scope="col" class="bg-primary">Last Name</th>
<th scope="col" class="bg-primary">Email</th>
</thead>
<tbody>
<?php
foreach($result as $data) {
echo '<tr>';
echo '<td>'.$data['id'].'</td>';
echo '<td>'.$data['first_name'].'</td>';
echo '<td>'.$data['last_name'].'</td>';
echo '<td>'.$data['email'].'</td>';
echo '</tr>';
}
?>
</tbody>
</table>
<center>
<ul class="pagination">
<?php
if($page_counter > 1)
echo "<li><a href=?start=$previous>Previous</a></li>";
for($j=1; $j <= $paginations; $j++) {
if($j == $page_counter) {
echo "<li><a href=?start=$j class='active'>". $j ."</a></li>";
} else {
echo "<li><a href=?start=$j>". $j ."</a></li>";
}
}
if($page_counter < $paginations)
echo "<li><a href=?start=$next>Next</a></li>";
?>
</ul>
</center>
</div>
</body>
</html>
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