[英]mysql results numbering in PHP with custom pagination
我在基本的自定义 MVC 设计中有 PHP 代码,旨在搜索 MySQL 数据库中的记录,然后在分页页面中返回/输出结果。 我的问题是第 1 页中的结果编号为 1 -20,以及第 2 页、第 3 页等中的结果。
理想情况下,第 2 页的结果应为 21-40,第 3 页的结果应为 41-60...等
这是控制器的代码片段
function getCitation() {
$limit = 20;
$currentpage = isset($_GET['page']) ? (int)$_GET['page'] : 1;
$start_from =((($currentpage*$limit)-$limit)+1);
$term = isset($_GET['searchterm']) ? $_GET['searchterm'] : null;
//if(isset($_GET['mysearch']))
if(isset($_GET['search1']) && empty($term) && ($_GET['choice'] == 'title' || $_GET['choice'] == 'author')){
header ('Location: ' . '../index');
}
$this->view->getCitation = $this->model->getCitation($term,$start_from,$limit);
//The line below is critical for pagination in view.
$this->view->getPages = $this->model->getPages($term, $limit);
$this->view->render('search/index');
}
模型看起来像这样
public function getCitation($term, $start_from, $limit){
$sth = $this->db->prepare("SELECT * FROM citations_new WHERE title
LIKE ? LIMIT {$start_from}, {$limit}");
$sth->execute(array('%'.$term.'%'));
return $rows = $sth->fetchAll(PDO::FETCH_ASSOC);
}
public function getPages($term, $limit){
echo $term;
$sth = $this->db->prepare("SELECT Count(*) FROM citations_new WHERE title
LIKE ?");
//echo 1;
$sth->execute(array('%'.$term.'%'));
$results = $sth->fetchColumn();
$total_records = $results;
return $total_pages = ceil($total_records/$limit);
}
视图如下所示:
$x=1;
while($row = array_shift($this->getCitation())){
echo $x++;
echo $row['title'] . '<br>';
}
for($i=1; $i<=$this->getPages; $i++):?>
<a href="?searchterm=<?php echo $_GET['searchterm'].'&search1=Submit+Query&page=' . $i; ?>">
<?php echo $i;?></a>
<?php endfor;?>
当我回显$start_from =((($currentpage*$limit)-$limit)+1);
在控制器上,我能够看到正确的 start_number。 我怎样才能让我的结果按顺序编号?
除非我误会了,这不是你自己解决的吗? 为什么你不能在测试时设置计数器?
添加一点答案,所以我们需要设置一个viewdata数组,向它添加正确的信息然后我们需要将计数器从控制器传递给视图
控制器:
$viewdata = array();
$viewdata['results'] = $this->model->getCitation($term,$start_from,$limit);
$viewdata['pagecounter'] = ((($currentpage*$limit)-$limit)+1);
$this->view->getCitation = $viewdata;
看法:
$viewdata = $this->getCitation();
$x= $viewdata['pagecounter'];
while($row = array_shift($viewdata['results'])){
echo $x++;
echo $row['title'] . '<br>';
}
for($i=1; $i<=$this->getPages; $i++):?>
<a href="?searchterm=<?php echo $_GET['searchterm'].'&search1=Submit+Query&page=' . $i; ?>">
<?php echo $i;?></a>
<?php endfor;?>
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