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ページ作成スクリプトでいくつかの問題があります。次のボタンを使用して新しいページを読み込んだときに、検索用語$search_term = "%" . $_POST['searchBar'] . "%";が失われます。これを避ける方法はありますか？または検索語を設定値として設定しますか？
次のページのURLがとても似ている - http://examplewebsite.com/user/Courses/SearchResultsPage.php?pn=2
これで任意の助けいただければ幸いです。
ページ分割スクリプトの残りは以下のとおりです。
<?php
$mysqli = new mysqli('localhost', 'user', 'password','db');
if ($mysqli->connect_errno)
{
die('Database connection failed');
}
//$m->set_charset('utf8');
//here are my main changes
//turn errors on to develop, back off when you go live
error_reporting(E_ALL);
ini_set('display_errors', 1);
$search_term = "%" . $_POST['searchBar'] . "%";
$search_param = $_SESSION['$search_term']=$search_term;
$stmt =$mysqli->prepare("SELECT title, summary, id FROM course WHERE title
LIKE ?");
$stmt->bind_param("s", $search_param); //learn this
$stmt->execute();
$result = $stmt->get_result();
//This gets the number of rows in a query result
$rows = $result->num_rows;
//number of results per page
$rows_per_page = 10;
//shows last page
$last_page = ceil($rows/$rows_per_page);
if($last_page < 1){
$last_page = 1;
}
if(isset($_GET['pn'])){
$page_number = preg_replace('#[^0-9]#', '', $_GET['pn']);
} else {
$page_number = 1;
}
//makes sure page number is between limits of $page_number
if($page_number < 1){
$page_number = 1;
} else if($page_number > $last_page){
$page_number = $last_page;
}
// sets the value of items to view
$limit = 'LIMIT ' .($page_number -1) * $rows_per_page .',' .$rows_per_page;
//displays to the user the total number of results and the page numbers
$total_number_of_results = "Search Results (<b>$rows</b>)";
$page_user_is_on = "Page <b>$page_number</b> of <b>$last_page</b>";
//query again only grabbing the set number of rows depending on page number
$stmt = $mysqli->prepare("SELECT title, summary, id FROM course WHERE title LIKE ? ".$limit);
$stmt->bind_param("s", $search_param);
$stmt->execute();
$result = $stmt->get_result();
$list = '';
while($row = $result->fetch_assoc()){
$title = $row['title'];
$id = $row['id'];
//I'm assuming you want each link to be different here...
$list.='<p><a href="Selectedcourse.php?id='.$id.'">' . $title . '</a></p>';
}
mysqli_close($mysqli);
//set up pagination
$pagination_controls = '';
if($last_page != 1){
if($page_number > 1){
$previous = $page_number - 1;
$pagination_controls .='<a href="'.$_SERVER['PHP_SELF'].'?pn='.$previous.'">previous</a> ';
for($i = $page_number - 4; $i < $page_number; $i++)
{
if($i > 0){
$pagination_controls .= '<a href="'.$_SERVER['PHP_SELF'].'?pn='.$i.'">'.$i.'</a> ';
}
}
}
$pagination_controls.=''.$page_number.' ';
//clickable links to the left
for($i = $page_number+1; $i <= $last_page; $i++)
{
$pagination_controls .= '<a href="'.$_SERVER['PHP_SELF'].'?pn='.$i.'">'.$i.'</a> ';
if($i >= $page_number+4){
break;
}
}
if($page_number != $last_page){
$next = $page_number + 1;
$pagination_controls.=' <a href="'.$_SERVER['PHP_SELF'].'?pn='.$next.'">Next</a>';
}
}
?>
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<link rel='stylesheet' href='courses.css'>
</head>
<body>
<div class="header">
<h1>Search Results for - <?= $search_param ?></h1>
</div>
<div>
<h3> <?php echo $page_user_is_on ?> </h3>
<p><?php echo $list; ?></p>
<p><?php /* echo $search_result['summary']; //Where was this coming from? */?> </p>
</div>
<div id="pagination_controls"><?php echo $pagination_controls; ?></div>
</body>
</html>
全文を投稿 – Mihai
@Mihai thatsここに完全なドキュメント – bdg
質問は、なぜセッションを使用していますか？あなたの以前の質問はそれらを使用せずに動作します。 –