Php 将旧脚本转换为PDO结果不显示？
好的，我对PDO不是很熟悉，我刚刚开始，有人能帮我吗？为什么我的结果不会显示？页面正在运行，但没有显示任何数据Php 将旧脚本转换为PDO结果不显示？,php,mysql,pdo,Php,Mysql,Pdo,好的，我对PDO不是很熟悉，我刚刚开始，有人能帮我吗？为什么我的结果不会显示？页面正在运行，但没有显示任何数据 <?php require_once 'db/_db.php'; $stmt = $db->prepare("SELECT * FROM article"); $stmt->execute(); $result = $stmt->fetchAll(); $total_rows = $stmt->rowCount(); //$a
<?php
require_once 'db/_db.php';
$stmt = $db->prepare("SELECT * FROM article");
$stmt->execute();
$result = $stmt->fetchAll();
$total_rows = $stmt->rowCount();
//$allRecords = mysql_query('select * from article');
//$total_rows = mysql_num_rows($allRecords);
//$base_url = 'https://localhost/pagi/'; //
global $per_page;
$num_links = 4;
$total_rows = $total_rows;
$cur_page = 1;
if(isset($_GET['page']))
{
$cur_page = $_GET['page'];
$cur_page = ($cur_page < 1)? 1 : $cur_page; //if page no. in url is less then 1 or -ve
}
$offset = ($cur_page-1)*$per_page; //setting offset
$pages = ceil($total_rows/$per_page);
$start = (($cur_page - $num_links) > 0) ? ($cur_page - ($num_links - 1)) : 1;
$end = (($cur_page + $num_links) < $pages) ? ($cur_page + $num_links) : $pages;
//$res = mysql_query("SELECT * FROM article ORDER BY id DESC LIMIT ".$per_page." OFFSET ".$offset);
$stm = $db->prepare("SELECT * FROM article ORDER BY id DESC LIMIT ".$per_page." OFFSET ".$offset);
$stm->execute();
$res = $stm->fetchAll();
$rows = $stm->rowCount();
if($rows < 1){
header("Location: news-events.php");
exit;
}
if(is_resource($result))
{
foreach( $res as $row ) {
$desc = $row["ne_article"];
$img = $row['ne_image'];
if(!empty($img)){
$img = '<br/><img src="uploads/images/'.$img.'" alt="" class="responsive-shrink">';
}else{
$img = '';
}
$youtube = $row["ne_youtube"];
if(!empty($youtube)){
$youtube = '<br/><div class="video-container"><iframe src="http://www.youtube.com/embed/'.$youtube.'"></iframe></div>';
}else{
$youtube = '';
}
//shortenString($row['ne_article']);
?>
<h4><a href="<?php echo $row['ne_url']; ?>"><?php echo $row['ne_title']; ?></a></h4>
<h5><b>Views:</b> <?php echo $row['views']; ?>, <b>Posted on:</b> <?php echo format_date($row['created']); ?></h5>
<?php echo $img; ?>
<?php echo $youtube; ?>
<p>
<br/><?php echo bbcode(nl2br(shortenString($desc))); ?>
</p>
<div id="pagelink">
<a href="<?php echo $row['ne_url']; ?>" class="myButton"> Read more...</button></a>
</div>
<?php
}
}
?>
<div id="pagination">
<div id="pagiCount">
<br/><br/>
<?php
if(isset($pages))
{
if($pages > 1)
{ if($cur_page > $num_links) // for taking to page 1 //
{ $dir = "First";
echo '<span id="prev"> <a href="'.$_SERVER['PHP_SELF'].'?page='.(1).'">'.$dir.'</a> </span>';
}
if($cur_page > 1)
{
$dir = "Prev";
echo '<span id="prev"> <a href="'.$_SERVER['PHP_SELF'].'?page='.($cur_page-1).'">'.$dir.'</a> </span>';
}
for($x=$start ; $x<=$end ;$x++)
{
echo ($x == $cur_page) ? '<strong>'.$x.'</strong> ':'<a href="'.$_SERVER['PHP_SELF'].'?page='.$x.'">'.$x.'</a> ';
}
if($cur_page < $pages )
{ $dir = "Next";
echo '<span id="next"> <a href="'.$_SERVER['PHP_SELF'].'?page='.($cur_page+1).'">'.$dir.'</a> </span>';
}
if($cur_page < ($pages-$num_links) )
{ $dir = "Last";
echo '<a href="'.$_SERVER['PHP_SELF'].'?page='.$pages.'">'.$dir.'</a> ';
}
}
}
?>
视图：，发布于：
非常感谢您的时间和帮助您几乎每件事都做错了。您也使用了旧的mysql 要获取数据库中的记录数，您应该不要选择所有行，也不要提取它们。您必须已经选择计数
$total_rows = $pdo->query("SELECT count(1) FROM article")->fetchColumn();
最后，您必须取出所有无用的验证，并立即从
foreach$stm = $db->prepare("SELECT * FROM article ORDER BY id DESC LIMIT ?,?");
$stm->execute([$offset,$per_page]);
$res = $stm->fetchAll();
foreach( $res as $row ) {
并阅读正确设置错误模式。检查引号是否有问题。。。当您在“”内回显html代码时，如果您有“”，并且再次在“”内回显，如此示例回显“”，您将遇到问题。您应该在此处使用\'以避免这些问题回音'.$dir' 始终检查错误。不要假设您的查询成功。是的，我已经修复了该问题，但仍然没有数据显示。顺便说一句，
$result$res