[英]PHP/SQL - pagination for fuzzy search results
我已经在我的网站上为产品创建了搜索功能,并且我尝试进行分页,以便它不仅是一长串的结果。 所以我开始是这样的:
**注意:在本例中,我只是将$_GET['search_term']
替换$_GET['search_term']
'whatever'
,在我有var_dump()
我有一个函数可以显示给定数组中每个id的乘积。
$term = 'whatever'; //$_GET['search_term'];
$new_term = '%'.$term.'%';
if(isset($_GET['page'])){
$page = $_GET['page'];
}else{
$page = 1;
}
$per_page = 20;
$last_page = ceil($resultCount/$per_page);
if($page<1){
$page = 1;
}else if($page>$last_page){
$page = $last_page;
}
$pagination = "";
$limit = "LIMIT ".($page-1)*$per_page.",".$per_page;
if($last_page!=1){
if($page!=1){
$prev = $page-1;
$pagination .= "<a class='pagination' href='store'><<</a>";
$pagination .= "<a class='pagination' href='store/$prev'><</a>";
}
for($i=$page-2; $i<=$page+2; $i++){
if($i>0 && $i<=$last_page){
if($i == $page){
$pagination .= "<a class='pagination selected'>$i</a>";
}else{
$pagination .= "<a class='pagination' href='store/$i'>$i</a>";
}
}
}
if($page!=$last_page){
$next = $page+1;
$pagination .= "<a class='pagination' href='store/$next'>></a>";
$pagination .= "<a class='pagination' href='store/$last_page'>>></a>";
}
}
if(isset($term)){
echo $pagination;
$ids = [];
$params = [$new_term];
$sql = "SELECT * FROM products WHERE name LIKE ? $limit";
$stmt = DB::run($sql,$params);
$resultCount = $stmt->rowCount();
if($resultCount > 0){
while ($row = $stmt->fetch(PDO::FETCH_ASSOC)){
$id = $row["pro_id"];
$params3 = [$id];
$sql3 = "SELECT * FROM products WHERE id=?";
$stmt3 = DB::run($sql3,$params3);
while($row = $stmt3->fetch(PDO::FETCH_ASSOC)){
$id = $row["id"];
array_push($ids,$id);
}
}
var_dump($ids);
}
echo $pagination;
}
这样做很好,但是后来我想对其进行模糊搜索,所以我这样做了:
$term = 'whatever'; //$_GET['search_term'];
$new_term = '%'.$term.'%';
$params = [$new_term];
$sql = "SELECT * FROM products WHERE name LIKE ?";
$stmt = DB::run($sql,$params);
$resultCount = $stmt->rowCount();
if($resultCount < 1){
$sql = "SELECT * FROM products";
$stmt = DB::run($sql);
while ($row = $stmt->fetch(PDO::FETCH_ASSOC)){
$id = $row["pro_id"];
$result = $row[$lang];
similar_text($term,$result,$similarity);
$similar_array[$similarity][] = $id;
}
$closest_match = array_keys($similar_array);
rsort($closest_match);
$match_count = count($closest_match);
$similar_ids = [];
for($i=0; $i<$match_count; $i++){
foreach($similar_array[$closest_match[$i]] as $id){
array_push($similar_ids,$id);
}
}
$resultCount = count($similar_ids);
}
if(isset($_GET['page'])){
$page = $_GET['page'];
}else{
$page = 1;
}
$per_page = 20;
$last_page = ceil($resultCount/$per_page);
if($page<1){
$page = 1;
}else if($page>$last_page){
$page = $last_page;
}
$pagination = "";
$limit = "LIMIT ".($page-1)*$per_page.",".$per_page;
if($last_page!=1){
if($page!=1){
$prev = $page-1;
$pagination .= "<a class='pagination' href='store'><<</a>";
$pagination .= "<a class='pagination' href='store/$prev'><</a>";
}
for($i=$page-2; $i<=$page+2; $i++){
if($i>0 && $i<=$last_page){
if($i == $page){
$pagination .= "<a class='pagination selected'>$i</a>";
}else{
$pagination .= "<a class='pagination' href='store/$i'>$i</a>";
}
}
}
if($page!=$last_page){
$next = $page+1;
$pagination .= "<a class='pagination' href='store/$next'>></a>";
$pagination .= "<a class='pagination' href='store/$last_page'>>></a>";
}
}
if(isset($term)){
echo $pagination;
$ids = [];
$params = [$new_term];
$sql = "SELECT * FROM products WHERE name LIKE ? $limit";
$stmt = DB::run($sql,$params);
$resultCount = $stmt->rowCount();
if($resultCount > 0){
while ($row = $stmt->fetch(PDO::FETCH_ASSOC)){
$id = $row["pro_id"];
$params3 = [$id];
$sql3 = "SELECT * FROM products WHERE id=?";
$stmt3 = DB::run($sql3,$params3);
while($row = $stmt3->fetch(PDO::FETCH_ASSOC)){
$id = $row["id"];
array_push($ids,$id);
}
}
var_dump($ids);
}else{
var_dump($similar_ids);
}
echo $pagination;
}
这样做可能有更好的方法,但这就是我所拥有的。 然后我的问题是如何使分页在这里对模糊结果( $similar_ids
)工作? 我在考虑某种函数,该函数将根据页码拼接数组,但是我不确定该如何处理。
这不能回答您的问题,但是我还是要说这些:
$limit
可能存在SQL注入错误。
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