解决了..基本上正如YourCommonSense所暗示的那样，使用get变量来传递搜索查询，所以我在顶部添加了这些代码块并编辑了可链接的url以传递变量。
if (isset($_GET['searchquery'])){
$searchquery=$_GET['searchquery'];
$stmt = $myConnection->prepare('SELECT COUNT(id) FROM products WHERE product_name LIKE ? OR details LIKE ? OR category LIKE ? OR subcategory LIKE ? OR price LIKE ?');
$param = "%$searchquery%";
$stmt->bind_param('sssss', $param, $param, $param, $param, $param);
$stmt->execute();
/* store result */
$result=$stmt->bind_result($id);
$rows=array();
while ($stmt->fetch()){
$rows[]=array(
'id' => $id
);
}
$rows=$id;
// This is the number of results we want displayed per page
$page_rows = 4;
// This tells us the page number of our last page
$last = ceil($rows/$page_rows);
// This makes sure $last cannot be less than 1
if($last < 1){
$last = 1;
}
// Establish the $pagenum variable
$pagenum = 1;
// Get pagenum from URL vars if it is present, else it is = 1
if(isset($_GET['pn'])){
$pagenum = preg_replace('#[^0-9]#', '', $_GET['pn']);
}
// This makes sure the page number isn't below 1, or more than our $last page
if ($pagenum < 1) {
$pagenum = 1;
} else if ($pagenum > $last) {
$pagenum = $last;
}
$stmt=$myConnection->prepare('SELECT id,product_name,price FROM products WHERE product_name LIKE ? OR details LIKE ? OR category LIKE ? OR subcategory LIKE ? OR price LIKE ? LIMIT ?,?');
$begin= ($pagenum - 1) * $page_rows;
$end= $page_rows;
$stmt->bind_param('sssssii', $param, $param, $param, $param, $param,$begin,$end);
$stmt->execute();
/* store result */
$stmt->store_result();
/* get the row count */
$count = $stmt->num_rows;
if ($count >= 1) {
$stmt->bind_result($id, $product_name, $price);
$search_output = "<hr />$count results for <strong>$searchquery</strong><hr />";
$textline1 = "<h4><center>Total of <b>$rows</b> items in this section</center></h4>";
$textline2 = "Page <b>$pagenum</b> of <b>$last</b>";
// Establish the $paginationCtrls variable
$paginationCtrls = '';
// If there is more than 1 page worth of results
if($last != 1){
/* First we check if we are on page one. If we are then we don't need a link to
the previous page or the first page so we do nothing. If we aren't then we
generate links to the first page, and to the previous page. */
if ($pagenum > 1) {
$previous = $pagenum - 1;
$paginationCtrls .= '<a href="http://www.chenlikonlinestore.com/search.php?pn='.$previous.'">Previous</a> ';
// Render clickable number links that should appear on the left of the target page number
for($i = $pagenum-4; $i < $pagenum; $i++){
if($i > 0){
$paginationCtrls .= '<a href="'.$_SERVER['PHP_SELF'].'?searchquery='.$searchquery.'&pn='.$i.'">'.$i.'</a> ';
}
}
}
// Render the target page number, but without it being a link
$paginationCtrls .= ''.$pagenum.' ';
// Render clickable number links that should appear on the right of the target page number
for($i = $pagenum+1; $i <= $last; $i++){
$paginationCtrls .= '<a href="'.$_SERVER['PHP_SELF'].'?searchquery='.$searchquery.'&pn='.$i.'">'.$i.'</a> ';
if($i >= $pagenum+4){
break;
}
}
// This does the same as above, only checking if we are on the last page, and then generating the "Next"
if ($pagenum != $last) {
$next = $pagenum + 1;
$paginationCtrls .= ' <a href="'.$_SERVER['PHP_SELF'].'?searchquery='.$searchquery.'&pn='.$next.'">Next</a> ';
}
}
while ($stmt->fetch()) {
"$id, $product_name, $price";
$search_output .= "
<li><div class='product'>
<a href='product.php?id=$id' class='info'>
<span class='holder'>
<img src='inventory_images/$id.jpg' alt='$product_name' />
<span class='book-name'>$product_name</span>
</a>
<a href='product.php?id=$id' class='buy-btn'>RM<span class='price'>$price</span></a>
</div>
</li>
";
}
}
}
如问题中所述，我尝试对搜索结果进行分页。其他一切正常，但最后一点是当我单击 paginatedCrls 按钮转到下一页或特定页面时，我加载并显示为全新的搜索。我该如何解决？
<?php
session_start();
$search_output = "";
if (empty($searchquery))
{ $search_output = "<hr />Please enter a search term in the above search box <hr />";}
if (isset($_POST['searchquery']) && $_POST['searchquery'] != "") {
$searchquery = preg_replace('/[^a-zA-Z0-9_ %\[\]\/\.\(\)%&-]/s', '', $_POST['searchquery']);
if ($_POST['filter1'] == "Products") {
require_once ("storescripts/connect_to_mysqli.php");
$stmt = $myConnection->prepare('SELECT COUNT(id) FROM products WHERE product_name LIKE ? OR details LIKE ? OR category LIKE ? OR subcategory LIKE ? OR price LIKE ?');
$param = "%$searchquery%";
$stmt->bind_param('sssss', $param, $param, $param, $param, $param);
$stmt->execute();
/* store result */
$result=$stmt->bind_result($id);
$rows=array();
while ($stmt->fetch()){
$rows[]=array(
'id' => $id
);
}
$rows=$id;
// This is the number of results we want displayed per page
$page_rows = 4;
// This tells us the page number of our last page
$last = ceil($rows/$page_rows);
// This makes sure $last cannot be less than 1
if($last < 1){
$last = 1;
}
// Establish the $pagenum variable
$pagenum = 1;
// Get pagenum from URL vars if it is present, else it is = 1
if(isset($_GET['pn'])){
$pagenum = preg_replace('#[^0-9]#', '', $_GET['pn']);
}
// This makes sure the page number isn't below 1, or more than our $last page
if ($pagenum < 1) {
$pagenum = 1;
} else if ($pagenum > $last) {
$pagenum = $last;
}
$stmt=$myConnection->prepare('SELECT id,product_name,price FROM products WHERE product_name LIKE ? OR details LIKE ? OR category LIKE ? OR subcategory LIKE ? OR price LIKE ? LIMIT ?,?');
$begin= ($pagenum - 1) * $page_rows;
$end= $page_rows;
$stmt->bind_param('sssssii', $param, $param, $param, $param, $param,$begin,$end);
$stmt->execute();
/* store result */
$stmt->store_result();
/* get the row count */
$count = $stmt->num_rows;
if ($count >= 1) {
$stmt->bind_result($id, $product_name, $price);
$search_output = "<hr />$count results for <strong>$searchquery</strong><hr />";
$textline1 = "<h4><center>Total of <b>$rows</b> items in this section</center></h4>";
$textline2 = "Page <b>$pagenum</b> of <b>$last</b>";
// Establish the $paginationCtrls variable
$paginationCtrls = '';
// If there is more than 1 page worth of results
if($last != 1){
/* First we check if we are on page one. If we are then we don't need a link to
the previous page or the first page so we do nothing. If we aren't then we
generate links to the first page, and to the previous page. */
if ($pagenum > 1) {
$previous = $pagenum - 1;
$paginationCtrls .= '<a href="http://www.chenlikonlinestore.com/search.php?pn='.$previous.'">Previous</a> ';
// Render clickable number links that should appear on the left of the target page number
for($i = $pagenum-4; $i < $pagenum; $i++){
if($i > 0){
$paginationCtrls .= '<a href="'.$_SERVER['PHP_SELF'].'?pn='.$i.'">'.$i.'</a> ';
}
}
}
// Render the target page number, but without it being a link
$paginationCtrls .= ''.$pagenum.' ';
// Render clickable number links that should appear on the right of the target page number
for($i = $pagenum+1; $i <= $last; $i++){
$paginationCtrls .= '<a href="'.$_SERVER['PHP_SELF'].'?pn='.$i.'">'.$i.'</a> ';
if($i >= $pagenum+4){
break;
}
}
// This does the same as above, only checking if we are on the last page, and then generating the "Next"
if ($pagenum != $last) {
$next = $pagenum + 1;
$paginationCtrls .= ' <a href="'.$_SERVER['PHP_SELF'].'?pn='.$next.'">Next</a> ';
}
}
while ($stmt->fetch()) {
"$id, $product_name, $price";
$search_output .= "
<li><div class='product'>
<a href='product.php?id=$id' class='info'>
<span class='holder'>
<img src='inventory_images/$id.jpg' alt='$product_name' />
<span class='book-name'>$product_name</span>
</a>
<a href='product.php?id=$id' class='buy-btn'>RM<span class='price'>$price</span></a>
</div>
</li>
";
}
} else {
$search_output = "<hr />0 results for <strong>$searchquery</strong><hr />";
}
} else {
$search_output = "<hr />0 results for <strong>$searchquery</strong><hr />";
}
}
?>