仅显示分页中特定范围的页面？

Question

我正在做一些分页的MySQL结果，并试图限制给定的页面被列入指定变量的数量。这部分工作，但限制只能在开始和结束。我相信这是因为我需要修改for循环。

这是它当前显示的内容。

                            ^应仅显示3,4,5,6,7^

PHP：

var $max_pages = 4; 

$batch = ceil($this->page/$this->links_per_page); 
$end = $batch * $this->links_per_page; 
if ($end > $this->total_pages) { 
    $end = $this->total_pages; 
} 

$start = 1; 

for($i = max($start,$this->page - $this->max_pages); 
$i <= min($this->page + $this->max_pages,$end); $i ++) { 
    if ($i == $this->page) { 
     $prefixActive = '<span class="page_link active">'; 
     $links .= $prefixActive . "$i" . $suffix; 
    } else { 
     $links .= ' ' . '<a href="' . $this->php_self . 
     '?page=' . $i . $this->append . '">' .$prefix . $i . 
     $suffix. '</a>' . ' '; 
    } 
} 

Answer 1

if($this->total_pages > $this->max_pages){ 
    $max_start = max($start,$this->page - $this->max_pages/2); 
    $start_index = min($this->total_pages - $this->max_pages, $max_start); 
    $end_index = min($this->total_pages, $max_start + $this->max_pages); 
} else { 
    $start_index = 1; 
    $end_index = $this->total_pages; 
} 

for($i = $start_index; $i <= $end_index; $i ++) { 
    if ($i == $this->page) { 
     $prefixActive = '<span class="page_link active">'; 
     $links .= $prefixActive . "$i" . $suffix; 
    } else { 
     $links .= ' ' . '<a href="' . $this->php_self . 
       '?page=' . $i . $this->append . '">' .$prefix . $i . 
       $suffix. '</a>' . ' '; 
    } 
}