Query results and pagination showing first page only - search

Question

I am trying to build a scraper for educational purposes only, I am using Phasher class to generate Hexadecimal hashes and store in the database then search the stored images for similar images, I wrote something a few days ago trying to show the results for the search for similar pictures but I can't figure out why it's showings only the results on first page only and other pages doesn't show them whe I press on number 1 page it doesn't show anything but the results are correct and the number of generated are correct I am new in PHP and I am trying to learn it by doing any help will appreciate it thanks in advance.
This is index.php
<?php include('header.php'); ?>
<nav class="navbar navbar-default">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="index.php">
<img alt="FBpp logo" src="images/logo.png">
</a>
</div>
</div>
</nav>
<div class="container"><!--container-->
<h3>Search Facebook Profiles Pictures For Similar Pictures.</h3>
<p>Please upload a picture, Allowed extensions are (jpg, jpeg, pjpeg, png, x-png) and maximum size is 5 Mb...</p>
<?php
//Require config.php file to connect with mysql server and the db.
require_once('config.php');
//Check if the database is empty or if there are hashed pictures then show the number of hashed pictures.
$check = mysqli_query($con, "SELECT id FROM images ORDER BY id DESC LIMIT 1;");
if(mysqli_num_rows($check) > 0){
$max_id = mysqli_fetch_row($check);
$id = $max_id[0];
echo 'We scraped '; echo '<span class="bg-info">'.$id.'</span>'; echo ' pictures...';
}else{
echo 'The database is empty you need to run scraper.php';
}
?>
<br /><br />
<form action="search.php" method="post" class="form-inline reset-margin" enctype="multipart/form-data">
<div class="form-group">
<input type="file" name="image" class="file-input">
<button type="submit" name="submit" class="btn btn-primary"><span class="glyphicon glyphicon-search" aria-hidden="true"></span></button>
</div>
</form>
<br />
<?php include('footer.php'); ?>
This is search.php
<?php
include('header.php');
//Require config.php file to connect with mysql server and the db.
require_once('config.php');
include_once('classes/phasher.class.php');
$I = PHasher::Instance();
require_once('classes/paginator.class.php');
$limit = ( isset( $_GET['limit'] ) ) ? $_GET['limit'] : 10;
$page = ( isset( $_GET['page'] ) ) ? $_GET['page'] : 1;
$links = ( isset( $_GET['links'] ) ) ? $_GET['links'] : 7;
if(isset($_POST['submit'])){
$allowedExts = array('jpg', 'jpeg', 'pjpeg', 'png', 'x-png');
$temp = explode(".", $_FILES["image"]["name"]);
$extension = end($temp);
//Check if the extenstion of the uploaded picture is correct and the max size is 5*1024*1024 Megabits.
if((($_FILES["image"]["type"] == "image/jpg")
|| ($_FILES["image"]["type"] == "image/jpeg")
|| ($_FILES["image"]["type"] == "image/pjpeg")
|| ($_FILES["image"]["type"] == "image/png")
|| ($_FILES["image"]["type"] == "image/x-png"))
&& ($_FILES["image"]["size"] <= 5242880)
&& in_array($extension, $allowedExts)){
//Check if there is an error in the file, If not upload it to tmp folder then check db for similar pictures.
if($_FILES["image"]["error"] > 0){
echo "Return Code: " .$_FILES["image"]["error"]."<br />";
} else {
move_uploaded_file($_FILES["image"]["tmp_name"], dirname(__file__)."/tmp/".$_FILES["image"]["name"]);
$uploadedImage = dirname(__file__)."/tmp/".$_FILES["image"]["name"];
if($_FILES["image"]["size"] > 0){
$hash = $I->FastHashImage($uploadedImage);
$hex = $I->HashAsString($hash);
$query = "SELECT `fid`,`hash` FROM `images` WHERE `hash` LIKE '%".$hex."%'";
$queryResult = mysqli_query($con, $query);
$numrows = mysqli_num_rows($queryResult);
echo "<p>" .$numrows. " results found for " .$_FILES['image']['name']. "</p><br />";
$Paginator = new Paginator( $con, $query );
$results = $Paginator->getData( $limit, $page );
//Loop through result set.
/*while($row = mysqli_fetch_array($selectQuery)){
if($row['hash'] == $hex){
$fid = $row['fid'];
echo "<a href='https://www.facebook.com/$fid/' target='_blank'><img src='http://localhost/fbpp/test_pics/$fid.jpg' alt='' class='img-responsive'></a><br />";
// echo "<a href='https://www.facebook.com/$fid/' target='_blank'><img src='https://graph.facebook.com/$fid/picture?type=large' alt='' class='img-responsive'></a><br />";
}
}*/
echo '<div class="col-md-10 col-md-offset-1">
<table class="table table-striped table-condensed table-bordered table-rounded"><tbody>';
for( $i = 0; $i < count( $results->data ); $i++ ){
if($results->data[$i]["hash"] == $hex){
echo '<tr>';
$fid = $results->data[$i]['fid'];
echo "<td><a href='https://www.facebook.com/$fid/' target='_blank'><img src='http://localhost/fbpp/test_pics/$fid.jpg' alt='' class='img-responsive'></a></td>";
// echo "<td><a href='https://www.facebook.com/$fid/' target='_blank'><img src='https://graph.facebook.com/$fid/picture?type=large' alt='' class='img-responsive'></a></td>";
echo '</tr>';
}
}
if($numrows <= 10)
{
echo "";
} else {
echo '</tbody></table>';
echo $Paginator->createLinks( $links, 'pagination pagination-sm' );
echo '</div>';
}
}
//Else after checking the file size.
else {
echo "Picture is corrupted the size is 0";
}
} //Else after error check.
}
// This else after checking the picture extenstion and max size.
else {
echo "<p>Please Upload A Picture, Max. size is 5 Mb.</p>";
}
}
include('footer.php');
?>
This is pagination class if you want to look at it:
<?php
class Paginator {
private $_conn;
private $_limit;
private $_page;
private $_query;
private $_total;
public function __construct( $conn, $query ) {
$this->_conn = $conn;
$this->_query = $query;
$rs= $this->_conn->query( $this->_query );
$this->_total = $rs->num_rows;
}
public function getData( $limit = 10, $page = 1 ) {
$this->_limit = $limit;
$this->_page = $page;
if ( $this->_limit == 'all' ) {
$query = $this->_query;
} else {
$query = $this->_query . " LIMIT " . ( ( $this->_page - 1 ) * $this->_limit ) . ", $this->_limit";
}
$rs = $this->_conn->query( $query );
while ( $row = $rs->fetch_assoc() ) {
$results[] = $row;
}
$result = new stdClass();
$result->page = $this->_page;
$result->limit = $this->_limit;
$result->total = $this->_total;
$result->data = $results;
return $result;
}
public function createLinks( $links, $list_class ) {
if ( $this->_limit == 'all' ) {
return '';
}
$last = ceil( $this->_total / $this->_limit );
$start = ( ( $this->_page - $links ) > 0 ) ? $this->_page - $links : 1;
$end = ( ( $this->_page + $links ) < $last ) ? $this->_page + $links : $last;
$html = '<ul class="' . $list_class . '">';
$class = ( $this->_page == 1 ) ? "disabled" : "";
$html .= '<li class="' . $class . '">«</li>';
if ( $start > 1 ) {
$html .= '<li>1</li>';
$html .= '<li class="disabled"><span>...</span></li>';
}
for ( $i = $start ; $i <= $end; $i++ ) {
$class = ( $this->_page == $i ) ? "active" : "";
$html .= '<li class="' . $class . '">' . $i . '</li>';
}
if ( $end < $last ) {
$html .= '<li class="disabled"><span>...</span></li>';
$html .= '<li>' . $last . '</li>';
}
$class = ( $this->_page == $last ) ? "disabled" : "";
$html .= '<li class="' . $class . '">»</li>';
$html .= '</ul>';
return $html;
}
}
For more information about this you can look at latest commit on my github account:
github.com/jadolyo/FBpp
Thanks in advance I appreciate any help.

Answer 1

Well with a lot of thinking reading and debugging I had to write the code from scratch again in OOP and I discovered that I need to use sessions because the value of the image path was empty or not completed when I press on any page of the paginator anyway here is the complete code if someone looking for an answer for the same problem...
<?php
session_start();
class Search{
function __construct()
{
}
/**
* Upload posted image from index.php to tmp dir
* #return string
*/
function uploadImage()
{
if(isset($_POST['submit']))
{
move_uploaded_file($_FILES['image']['tmp_name'], dirname(__file__).'/tmp/'.$_FILES['image']['name']);
$uploadedImage = dirname(__file__).'/tmp/'.$_FILES['image']['name'];
$_SESSION['image'] = $uploadedImage;
}
return $_SESSION['image'];
}
function imageHashing()
{
include_once('classes/phasher.class.php');
$I = PHasher::Instance();
$hash = $I->FastHashImage(Search::uploadImage());
$hex = $I->HashAsString($hash);
$query = "SELECT `fid`,`hash` FROM `images` WHERE `hash` LIKE '%".$hex."%'";
//echo $query;
return $query;
}
function imageResults()
{
require_once('config.php');
require_once('classes/paginator.class.php');
$limit = ( isset( $_GET['limit'] ) ) ? $_GET['limit'] : 10;
$page = ( isset( $_GET['page'] ) ) ? $_GET['page'] : 1;
$links = ( isset( $_GET['links'] ) ) ? $_GET['links'] : 7;
$queryResults = mysqli_query($con, Search::imageHashing());
$numrows = mysqli_num_rows($queryResults);
echo "<p>" .$numrows. " results found.</p><br />";
$Paginator = new Paginator( $con, Search::imageHashing() );
$results = $Paginator->getData( $limit, $page );
for( $i = 0; $i < count( $results->data ); $i++ ){
echo '<tr>';
$fid = $results->data[$i]['fid'];
echo '<td>';
echo "<a href='https://www.facebook.com/$fid/' target='_blank'>https://www.facebook.com/$fid/</a>";
echo "<a href='https://www.facebook.com/$fid/' target='_blank'><img src='https://graph.facebook.com/$fid/picture?type=large' alt='' class='img-responsive'></a>";
$name = 'https://graph.facebook.com/'.$fid.'?fields=name&access_token=748352698603001|94fc98094ca42f974879c56f3229c5e4';
$response = file_get_contents($name);
$user = json_decode($response,true);
echo $user['name'];
echo '</td>';
echo '</tr>';
}
if($numrows <= 10){
echo "";
} else {
echo '</tbody></table>';
echo $Paginator->createLinks( $links, 'pagination pagination-sm' );
echo '</div>';
}
}
}
//Search::uploadImage();
//Search::imageHashing();
Search::imageResults();
?>