我正在学习PHP。我尝试构建一个脚本，以分页显示来自MySQL的记录。
我将代码设置为每页显示1条记录。 MySQL表上有4条记录或与收件人“ admin123”匹配的记录。我已经登录到该帐户。
因此，此分页脚本应提取4条记录给我看。每页1条记录。共4页。它给出回波2找到的结果（应该显示4）。然后按预期仅在页面上显示1条记录。但是，我看不到分页部分。没有显示到其他页面的链接，像这样：
第1234页。
我现在很困惑。请看看，让我知道我要去哪里了。
<?php
declare(strict_types=1);
ini_set('display_errors', '1');
ini_set('display_startup_errors', '1');
error_reporting(E_ALL);
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
include 'configurations.php';
if (!$conn)
{
$error = mysqli_connect_error();
$errno = mysqli_connect_errno();
print "$errno: $error\n";
exit();
}
else
{
//Get Page Number. Default is 1 (First Page).
$page_number = $_GET["page_number"];
if ($page_number == "")
{
$page_number = 1;
}
$sender_username = $mod; //$mod defined in configurations.php
$recipient_username = $user;
$links_per_page = 1;
$max_result = 30;
$offset = ($page_number*$links_per_page)-$links_per_page;
$query_1 = "SELECT COUNT(*) FROM messages WHERE recipient_username = ?
AND sender_username = ? ORDER BY id LIMIT ? OFFSET ?";
$stmt_1 = mysqli_prepare($conn,$query_1);
mysqli_stmt_bind_param($stmt_1,'ssii',$recipient_username,$sender_username,$ links_per_page,$offset);
mysqli_stmt_execute($stmt_1);
$result_1 = mysqli_stmt_bind_result($stmt_1,$matching_rows_count);
mysqli_stmt_fetch($stmt_1);
mysqli_stmt_free_result($stmt_1);
$total_pages = ceil($matching_rows_count/$links_per_page);
$query_2 = "SELECT id,date_and_time,recipient_username,sender_username,warning_messages FROM
messages WHERE recipient_username = ? AND sender_username = ? ORDER BY id
LIMIT ? OFFSET ?";
$stmt_2 = mysqli_prepare($conn,$query_2);
mysqli_stmt_bind_param($stmt_2,'ssii',$recipient_username,$sender_username,$links_per_page,$offset);
mysqli_stmt_execute($stmt_2);
$result_2 = mysqli_stmt_bind_result($stmt_2,$id,$date_and_time,$recipient_username,$sender_username,$warning);
mysqli_stmt_fetch($stmt_2);
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional/EN">
<html>
<head>
<meta content="text/html; charset=ISO-8859-1" http-equiv=" content-type">
<title><?php echo "$site_name User $user Warnings in $server_time time."; ?>
</title>
</head>
<body>
<br>
<p align="center"><span style="font-weight:bold;"><?php echo "$site_name
User $user Warnings in $server_time time."; ?></span></align>
<br>
<br>
<table width="1500" border="0" cellpadding="5" cellspacing="2"
bgcolor="#666666">
<?php if(!$stmt_2)
{
?>
<tr>
<td bgcolor="#FFFFFF">No record found! Try another time.</td>
</tr>
<?php
}
else
{
if(($offset+1)<=$max_result)
{
printf("<b> %d Result Found ...</b>\n",$matching_rows_count); ?><br>
<br>
<tr name="headings">
<td bgcolor="#FFFFFF" name="heading_submission-
number">Submission Number</td>
<td bgcolor="#FFFFFF" name="heading_date-and-
time">Date & Time in <?php echo "$server_time" ?></td>
<td bgcolor="#FFFFFF" name="heading_recipient-
username">To</td>
<td bgcolor="#FFFFFF" name="heading_sender-
username">From</td>
<td bgcolor="#FFFFFF" name="heading_warning">Warning</td>
</tr>
<tr name="user-details">
<td bgcolor="#FFFFFF" name="submission-number"><?php
printf("%s",$id); ?></td>
<td bgcolor="#FFFFFF" name="date-and-time"><?php
printf("%s",$date_and_time); ?></td>
<td bgcolor="FFFFFF" name="recipient-username"><?php
printf("%s",$recipient_username); ?></td>
<td bgcolor="#FFFFFF" name="sender-username"><?php
printf("%s",$sender_username); ?></td>
<td bgcolor="#FFFFFF" name="warning"><?php printf("%s",$warning); ?>
</td>
</tr>
<?php
while(mysqli_stmt_fetch($stmt_2))
{
?>
<tr name="user-details">
<td bgcolor="#FFFFFF" name="submission-number"><?php
printf("%s",$id); ?></td>
<td bgcolor="#FFFFFF" name="date-and-time"><?php
printf("%s",$date_and_time); ?></td>
<td bgcolor="#FFFFFF" name="recipient-username"><?php
printf("%s",$recipient_username); ?></td>
<td bgcolor="#FFFFFF" name="sender-username"><?php
printf("%s",$sender_username); ?></td>
<td bgcolor="#FFFFFF" name="warning"><?php
printf("%s",$warning);
?></td>
</tr>
<?php
?>
<tr name="pagination">
<td colspan="10" bgcolor="#FFFFFF"> Result Pages:
<?php
if($page_number < $total_pages)
{
for($i=1;$i<=$total_pages;$i++) //Show Page Numbers in
Serial.
echo "<a href=\"{$_SERVER['PHP_SELF']}?
user=$user&page_number={$i}\">{$i}</a> ";
}
else
{
for($i=$total_pages;$i>=1;$i--) //Show Page Numbers in
Reverse.
echo "<a href=\"{$_SERVER['PHP_SELF']}?
user=$user&page_number={$i}\">{$i}</a> ";
}
?>
</td>
</tr>
<?php
}
}
}
?>
</table>
<br>
<br>
<p align="center"><span style="font-weight:bold;"><?php echo "$site_name
User $user Warnings in $server_time time."; ?></span></align>
<br>
</div>
<br>
</body>
</html>
<?php
mysqli_stmt_free_result($stmt_2);
mysqli_stmt_close($stmt_2);
mysqli_close($conn);
}
?>