Implementation of php paging class-PHP Tutorial-php.cn

Implementation of php paging class

黄舟

Release： 2023-03-17 10:42:01

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In our previous two articles, we took you to understand the principle of PHP paging and the implementation effect of paging. Both articles are about implementing paging in development, and each time we have to write a lot of PHP code, so can we encapsulate paging and write it as a class, so that we can call it directly in the future? Today I will share with you an easy-to-use and beautiful phppagination class!

This article introduces a native PHP paging class, the paging style is somewhat similar to bootstrap.

<?php
/* * *********************************************
 * @类名:   page
 * @参数:   $myde_total - 总记录数
 *          $myde_size - 一页显示的记录数
 *          $myde_page - 当前页
 *          $myde_url - 获取当前的url
 * @功能:   分页实现
 * @作者:   宋海阁
 */
class page {
    private $myde_total;          //总记录数
    private $myde_size;           //一页显示的记录数
    private $myde_page;           //当前页
    private $myde_page_count;     //总页数
    private $myde_i;              //起头页数
    private $myde_en;             //结尾页数
    private $myde_url;            //获取当前的url
    /*
     * $show_pages
     * 页面显示的格式，显示链接的页数为2*$show_pages+1。
     * 如$show_pages=2那么页面上显示就是[首页] [上页] 1 2 3 4 5 [下页] [尾页] 
     */
    private $show_pages;
    public function construct($myde_total = 1, $myde_size = 1, $myde_page = 1, $myde_url, $show_pages = 2) {
        $this->myde_total = $this->numeric($myde_total);
        $this->myde_size = $this->numeric($myde_size);
        $this->myde_page = $this->numeric($myde_page);
        $this->myde_page_count = ceil($this->myde_total / $this->myde_size);
        $this->myde_url = $myde_url;
        if ($this->myde_total < 0)
            $this->myde_total = 0;
        if ($this->myde_page < 1)
            $this->myde_page = 1;
        if ($this->myde_page_count < 1)
            $this->myde_page_count = 1;
        if ($this->myde_page > $this->myde_page_count)
            $this->myde_page = $this->myde_page_count;
        $this->limit = ($this->myde_page - 1) * $this->myde_size;
        $this->myde_i = $this->myde_page - $show_pages;
        $this->myde_en = $this->myde_page + $show_pages;
        if ($this->myde_i < 1) {
            $this->myde_en = $this->myde_en + (1 - $this->myde_i);
            $this->myde_i = 1;
        }
        if ($this->myde_en > $this->myde_page_count) {
            $this->myde_i = $this->myde_i - ($this->myde_en - $this->myde_page_count);
            $this->myde_en = $this->myde_page_count;
        }
        if ($this->myde_i < 1)
            $this->myde_i = 1;
    }
    //检测是否为数字
    private function numeric($num) {
        if (strlen($num)) {
            if (!preg_match("/^[0-9]+$/", $num)) {
                $num = 1;
            } else {
                $num = substr($num, 0, 11);
            }
        } else {
            $num = 1;
        }
        return $num;
    }
    //地址替换
    private function page_replace($page) {
        return str_replace("{page}", $page, $this->myde_url);
    }
    //首页
    private function myde_home() {
        if ($this->myde_page != 1) {
            return "<a href=&#39;" . $this->page_replace(1) . "&#39; title=&#39;首页&#39;>首页</a>";
        } else {
            return "<p>首页</p>";
        }
    }
    //上一页
    private function myde_prev() {
        if ($this->myde_page != 1) {
            return "<a href=&#39;" . $this->page_replace($this->myde_page - 1) . "&#39; title=&#39;上一页&#39;>上一页</a>";
        } else {
            return "<p>上一页</p>";
        }
    }
    //下一页
    private function myde_next() {
        if ($this->myde_page != $this->myde_page_count) {
            return "<a href=&#39;" . $this->page_replace($this->myde_page + 1) . "&#39; title=&#39;下一页&#39;>下一页</a>";
        } else {
            return"<p>下一页</p>";
        }
    }
    //尾页
    private function myde_last() {
        if ($this->myde_page != $this->myde_page_count) {
            return "<a href=&#39;" . $this->page_replace($this->myde_page_count) . "&#39; title=&#39;尾页&#39;>尾页</a>";
        } else {
            return "<p>尾页</p>";
        }
    }
    //输出
    public function myde_write($id = &#39;page&#39;) {
        $str = "<div id=" . $id . ">";
        $str.=$this->myde_home();
        $str.=$this->myde_prev();
        if ($this->myde_i > 1) {
            $str.="<p class=&#39;pageEllipsis&#39;>...</p>";
        }
        for ($i = $this->myde_i; $i <= $this->myde_en; $i++) {
            if ($i == $this->myde_page) {
                $str.="<a href=&#39;" . $this->page_replace($i) . "&#39; title=&#39;第" . $i . "页&#39; class=&#39;cur&#39;>$i</a>";
            } else {
                $str.="<a href=&#39;" . $this->page_replace($i) . "&#39; title=&#39;第" . $i . "页&#39;>$i</a>";
            }
        }
        if ($this->myde_en < $this->myde_page_count) {
            $str.="<p class=&#39;pageEllipsis&#39;>...</p>";
        }
        $str.=$this->myde_next();
        $str.=$this->myde_last();
        $str.="<p class=&#39;pageRemark&#39;>共<b>" . $this->myde_page_count .
                "</b>页<b>" . $this->myde_total . "</b>条数据</p>";
        $str.="</div>";
        return $str;
    }
}
?>

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Implementation of php paging class

Summary:

php paging in actual development We don’t need to write so much code. We can write a PHP paging class ourselves, which can be used universally. In subsequent development, we can use it and call it directly without having to write it again!

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Principle of PHP paging implementation

#Example of php to achieve paging effect

How to write PHP paging code

How to use PHP to do paging query

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