使用分页显示Mysql Tbl结果

时间：2018-03-10 17:09:12

标签： php mysqli pagination

我需要使用mysqli以程序化的方式做事。尚未学习oop风格或pdo。

我正在尝试创建一个分页页面，其中10页显示所有记录。记录分布在10页以上。 即使我的tbl有记录，我也注意到没有记录存在。 html表中没有显示任何记录。 那是为什么？

以下是我尝试使用mysqli使用PREP STMT程序样式显示记录。

<!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's Notices in <?php echo 
$server_time; ?> time.</title> 
</head> 
<body> 
<br> 
<center><span style="font-weight: bold;"><?php echo "$site_name $user"; ?> 
User's Notices in <?php echo $server_time; ?> time.</span></center> 
<br> 
<br> 
<?php 
$query = "SELECT id,date_and_time,recipient_username,sender_username,notice 
FROM notices WHERE recipient_username = ?"; 

if ($stmt = mysqli_prepare($conn,$query)) 
{     
    //Bind Parameter 
    mysqli_stmt_bind_param($stmt,'s',$recipient_username);  
    //Execute Statement 
    mysqli_stmt_execute($stmt);
    //$result_1 = mysqli_query($conn,$query); 
    //Bind Result Variables     
    $result_1 = mysqli_stmt_bind_result
    ($stmt,$id,$date_and_time,
    $recipient_username,$sender_username,$notice); 
    mysqli_stmt_store_result($stmt); 
    $rows_num = mysqli_stmt_num_rows($stmt);    
    printf("Result set has %d rows.\n",$rows_num); 

    $page_count = 10; 
    $page_size = ceil($rows_num / $page_count); 
    //Get the Page Number, Default is 1 (First Page).   
    $page_number = $_GET["page_number"]; 
    if ($page_number == "") $page_number = 1; 
    $offset = ($page_number -1) * $page_size; 

    $query .= " limit {$offset},{$page_size}";      

?>  
<table width="1500" border="0" cellpadding="5" cellspacing="2" 
bgcolor="#666666"> 
<?php if($rows_num) {?> 
<tr name="headings"> 
<td bgcolor="#FFFFFF" name="column-heading_submission-number">Submission 
Number</td> 
<td bgcolor="#FFFFFF" name="column-heading_logging-server-date-&-time">Date 
& Time in <?php echo $server_time ?></td> 
<td bgcolor="#FFFFFF" name="column-heading_to">To</td> 
<td bgcolor="#FFFFFF" name="column-heading_from">From</td> 
<td bgcolor="#FFFFFF" name="column-heading_notice">Notice</td> 
</tr>   
<?php while($row = mysqli_stmt_fetch($stmt)) 
{ 
    ?> 
    <tr name="user-details"> 
    <td bgcolor="#FFFFFF" name="submission-number"><?php echo $row['id']; ?>
</td> 
    <td bgcolor="#FFFFFF" name="logging-server-date-&-time"><?php echo 
$row['date_and_time']; ?></td> 
    <td bgcolor="#FFFFFF" name="recipient_username"><?php echo 
$row['recipient_username']; ?></td> 
    <td bgcolor="#FFFFFF" name="sender_username"><?php echo 
$row['sender_username']; ?></td> 
    <td bgcolor="#FFFFFF" name="notice"><?php echo $row['notice']; ?></td>  
    </tr> 
    <?php 
} 
?> 
<tr name="pagination"> 
<td colspan="10" bgcolor="#FFFFFF"> Result Pages: 
<?php 
$rows_num = mysqli_stmt_num_rows($stmt); 
if($rows_num <= $page_size) 
{ 
    echo "Page 1"; 
} 
else 
{ 
    for($i=1;$i<=$page_count;$i++) 
    echo "<a href=\"{$_SERVER['PHP_SELF']}?page_number={$i}\">{$i}</a>  "; 
} 
?> 
</td> 
</tr> 
<?php 
} 
else 
{ 
    ?> 
    <tr> 
    <td bgcolor="FFFFFF">No record found! Try another time.</td> 
    </tr> 
    <?php 
} 
?> 
</table> 
<br> 
<br> 
<center><span style="font-weight: bold;"><?php echo "$site_name $user"; ?> 
User's Notices in <?php echo $server_time; ?> time.</span></center> 
<br> 
<br> 
</div> 
<br> 
</body> 
</html> 
<?php 
} 
//Free Result Set 
mysqli_stmt_free_result($stmt); 

//Close Database Connection 
mysqli_stmt_close($stmt); 

?>

我得到了回应：

结果集有0行。 没有找到记录！再试一次。

这是错误的。 mysql tbl中有记录。

忽略过时的htmls，因为我稍后会将它们升级到html 5。目前，我正在修复php。

1 个答案:

答案 0 :(得分：0)

这是我用于分页的内容。它也更灵活，只需将其固定为10页。

// Get inital params
if (isset($_GET['page'])) { $page = $_GET['page']; } else { $page = 1; }
$max_results = 100;
$offset = $page*$max_results - $max_results;
// This is the maximium amount of pages to display before adding Prev \ Next
$max = 10;

$query = "SELECT id FROM notices WHERE recipient_username = ?";
if ($stmt = mysqli_prepare($conn,$query)) {
    mysqli_stmt_bind_param($stmt,'s',$recipient_username);  
    mysqli_stmt_execute($stmt);
    mysqli_stmt_store_result($stmt); 
    $records = mysqli_stmt_num_rows($stmt);
    mysqli_stmt_close($stmt);
}
function get_paging_info($count, $offset, $curr_page)
{
    $pages = ceil($count / $offset);

    $data = array();
    $data['si']        = ($curr_page * $offset) - $offset;
    $data['pages']     = $pages;
    $data['curr_page'] = $curr_page;

    return $data; //return the paging data

}

$paging_info = get_paging_info($records, $max_results, $page);

$html = "";

if($paging_info['curr_page'] > 1) {

        $html = $html . "<a href='1' title='Page 1'>First</a> <a href='" . ($paging_info['curr_page'] - 1) . "' title='Page " . ($paging_info['curr_page'] - 1) . "'>Prev</a>";

}

if($paging_info['curr_page'] < $max) {
    $sp = 1;
} else {
    if($paging_info['curr_page'] >= ($paging_info['pages'] - floor($max / 2)) ) {
        $sp = $paging_info['pages'] - $max + 1;
    } else {
        if($paging_info['curr_page'] >= $max) {
            $sp = $paging_info['curr_page']  - floor($max/2);
        }
    }
}

if($paging_info['curr_page'] >= $max) {
    $html = $html . "<a href='1' title='Page 1'> 1</a> ... ";
}

for($i = $sp; $i <= ($sp + $max -1);$i++) {
    if($i > $paging_info['pages']) { continue; }

    if($paging_info['curr_page'] == $i) {
        $html = $html . "<span class='bold'> {$i}</span>";
    } else {
        $html = $html . "<a href='{$i}' title='Page {$i}'> {$i}</a>";
    }
}

if($paging_info['curr_page'] < ($paging_info['pages'] - floor($max / 2)) && ($paging_info['pages'] > ($sp + $max -1))) {
    $html = $html . " ... <a href='{$paging_info['pages']}' title='Page {$paging_info['pages']}'>{$paging_info['pages']}</a>";
}
if($paging_info['curr_page'] < $paging_info['pages']) {
    $html = $html . " <a href='" . ($paging_info['curr_page'] + 1) . "' title='Page " . ($paging_info['curr_page'] + 1) . "'>Next</a><a href='{$paging_info['pages']}' title='Page {$paging_info['pages']}'> Last</a>";
}

然后让代码通过数据库：

<table width="1500" border="0" cellpadding="5" cellspacing="2" 
bgcolor="#666666"> 
<?php if($records) {?> 
<tr name="headings"> 
<td bgcolor="#FFFFFF" name="column-heading_submission-number">Submission 
Number</td> 
<td bgcolor="#FFFFFF" name="column-heading_logging-server-date-&-time">Date 
& Time in <?php echo $server_time ?></td> 
<td bgcolor="#FFFFFF" name="column-heading_to">To</td> 
<td bgcolor="#FFFFFF" name="column-heading_from">From</td> 
<td bgcolor="#FFFFFF" name="column-heading_notice">Notice</td> 
</tr>   

<?php
$query = "SELECT id,date_and_time,recipient_username,sender_username,notice 
FROM notices WHERE recipient_username = ? LIMIT ? OFFSET ?";

if ($stmt = mysqli_prepare($conn,$query)) 
{     
    mysqli_stmt_bind_param($stmt,'sii',$recipient_username, $max_results, $offset);  
    mysqli_stmt_execute($stmt);
    mysqli_stmt_bind_result($stmt,$id,$date_and_time,$recipient_username,$sender_username,$notice); 
    mysqli_stmt_store_result($stmt); 
    while(mysqli_stmt_fetch($stmt))
    ?>
        <tr name="user-details"> 
            <td bgcolor="#FFFFFF" name="submission-number"><?php echo $id; ?></td> 
            <td bgcolor="#FFFFFF" name="logging-server-date-&-time"><?php echo $date_and_time; ?></td> 
            <td bgcolor="#FFFFFF" name="recipient_username"><?php echo $recipient_username; ?></td> 
            <td bgcolor="#FFFFFF" name="sender_username"><?php echo $sender_username; ?></td> 
            <td bgcolor="#FFFFFF" name="notice"><?php echo $notice; ?></td>  
        </tr> 
    <?php 
    }
    mysqli_stmt_close($stmt);
}
?>

<tr name="pagination"><td colspan="10" bgcolor="#FFFFFF"><?php echo $html; ?></td></tr>

注意：您显然必须编辑指向您需要它们的链接。此脚本将允许您动态设置最大页面长度，而不是将其固定为10，这可能会导致问题。

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