Php 使用i++循环并分页

我有这个：

    $page = (int) (!isset($_GET["page"]) ? 1 : $_GET["page"]);
    $limit = 50;
    $startpoint = ($page * $limit) - $limit;

    //to make pagination
    $statement = "`users`";

<?php
$sql = mysql_query("SELECT * FROM users ORDER BY respect DESC LIMIT {$startpoint} , {$limit}");
$i   = 1;
while ($row = mysql_fetch_assoc($sql)) {
    echo '
    <tr>
      <td style="text-align:center;">
';
    if ($i == '1') {
        echo '<i class="fa fa-trophy"></i> ';
    }
    if ($i == '2') {
        echo '<i class="fa fa-trophy"></i> ';
    }
    if ($i == '3') {
        echo '<i class="fa fa-trophy"></i> ';
    }
    echo '
      ' . $i++ . '

和分页功能：

function pagination($query, $per_page = 10,$page = 1, $url = '?')
   {        
        $query = "SELECT COUNT(*) as `num` FROM {$query}";
        $row = mysql_fetch_array(mysql_query($query));
        $total = $row['num'];
        $adjacents = "2"; 

        $page = ($page == 0 ? 1 : $page);  
        $start = ($page - 1) * $per_page;                               

        $prev = $page - 1;                          
        $next = $page + 1;
        $lastpage = ceil($total/$per_page);
        $lpm1 = $lastpage - 1;

        $pagination = "";
        if($lastpage > 1)
        {   
            $pagination .= "<ul class='pagination'>";
                    $pagination .= "<li class='details'>Page $page of $lastpage</li>";
            if ($lastpage < 7 + ($adjacents * 2))
            {   
                for ($counter = 1; $counter <= $lastpage; $counter++)
                {
                    if ($counter == $page)
                        $pagination.= "<li><a class='current'>$counter</a></li>";
                    else
                        $pagination.= "<li><a href='{$url}page=$counter'>$counter</a></li>";                    
                }
            }
            elseif($lastpage > 5 + ($adjacents * 2))
            {
                if($page < 1 + ($adjacents * 2))        
                {
                    for ($counter = 1; $counter < 4 + ($adjacents * 2); $counter++)
                    {
                        if ($counter == $page)
                            $pagination.= "<li><a class='current'>$counter</a></li>";
                        else
                            $pagination.= "<li><a href='{$url}page=$counter'>$counter</a></li>";                    
                    }
                    $pagination.= "<li class='dot'>...</li>";
                    $pagination.= "<li><a href='{$url}page=$lpm1'>$lpm1</a></li>";
                    $pagination.= "<li><a href='{$url}page=$lastpage'>$lastpage</a></li>";      
                }
                elseif($lastpage - ($adjacents * 2) > $page && $page > ($adjacents * 2))
                {
                    $pagination.= "<li><a href='{$url}page=1'>1</a></li>";
                    $pagination.= "<li><a href='{$url}page=2'>2</a></li>";
                    $pagination.= "<li class='dot'>...</li>";
                    for ($counter = $page - $adjacents; $counter <= $page + $adjacents; $counter++)
                    {
                        if ($counter == $page)
                            $pagination.= "<li><a class='current'>$counter</a></li>";
                        else
                            $pagination.= "<li><a href='{$url}page=$counter'>$counter</a></li>";                    
                    }
                    $pagination.= "<li class='dot'>..</li>";
                    $pagination.= "<li><a href='{$url}page=$lpm1'>$lpm1</a></li>";
                    $pagination.= "<li><a href='{$url}page=$lastpage'>$lastpage</a></li>";      
                }
                else
                {
                    $pagination.= "<li><a href='{$url}page=1'>1</a></li>";
                    $pagination.= "<li><a href='{$url}page=2'>2</a></li>";
                    $pagination.= "<li class='dot'>..</li>";
                    for ($counter = $lastpage - (2 + ($adjacents * 2)); $counter <= $lastpage; $counter++)
                    {
                        if ($counter == $page)
                            $pagination.= "<li><a class='current'>$counter</a></li>";
                        else
                            $pagination.= "<li><a href='{$url}page=$counter'>$counter</a></li>";                    
                    }
                }
            }

            if ($page < $counter - 1){ 
                $pagination.= "<li><a href='{$url}page=$next'>Next</a></li>";
                $pagination.= "<li><a href='{$url}page=$lastpage'>Last</a></li>";
            }else{
                $pagination.= "<li><a class='current'>Next</a></li>";
                $pagination.= "<li><a class='current'>Last</a></li>";
            }
            $pagination.= "</ul>\n";        
        }


        return $pagination;
    } 

每一页的限制是50，第一页从1到50看起来不错，但是我移到第2页时，从1到50是一样的，为什么不从51到101在第3页从102到152呢

SELECT * FROM tbl LIMIT 5,10;  # Retrieve rows 6-15

根据您的上下文，您必须根据页面更改{$startpoint}值

SELECT * FROM users ORDER BY respect DESC LIMIT {$startpoint} , {$limit}")

比如说,

//determine page number from $_GET 
$page = 1;
if(!empty($_GET['page'])) 
{
 $page = filter_input(INPUT_GET, 'page', FILTER_VALIDATE_INT);
 if(false === $page) {
    $page = 1;
 }
}

 // set the number of items to display per page
 $items_per_page = 50;

 // build query
 $offset = ($page - 1) * $items_per_page;
 $sql = "SELECT * FROM users LIMIT " . $offset . "," . $items_per_page;

---

如果您的限制是50，那么您的$startpoint应该是$currentpage-1*$limit

---

因此，对于第1页，值将是0，第2页50等等，我已经开始工作了，现在在第1页显示我从1到50，在第2页显示我从51到101，我将$i的值从1更改为：$start=$page-1*$limit+1$i=1*$start；像这样好吗？我不会有问题吗？