PHPを使ってページング機能モジュールを簡単に作成

PHP を使用してページング機能モジュールを作成するだけです

最初に写真を投稿して効果を確認してください

コードを投稿します

<?<span style="color: #000000;">php        </span><span style="color: #800080;">$localhost</span> = "localhost"<span style="color: #000000;">;    </span><span style="color: #800080;">$username</span> = "root"<span style="color: #000000;">;    </span><span style="color: #800080;">$password</span> = "root"<span style="color: #000000;">;    </span><span style="color: #800080;">$db</span> = "test";         <span style="color: #008000;">//</span><span style="color: #008000;">信息</span>        <span style="color: #800080;">$pagesize</span> = 5<span style="color: #000000;">;                                  </span><span style="color: #800080;">$conn</span> = <span style="color: #008080;">mysql_connect</span>(<span style="color: #800080;">$localhost</span>,<span style="color: #800080;">$username</span>,<span style="color: #800080;">$password</span>); <span style="color: #008000;">//</span><span style="color: #008000;">链接数据库</span>            <span style="color: #0000ff;">if</span>(!<span style="color: #800080;">$conn</span><span style="color: #000000;">){            </span><span style="color: #0000ff;">echo</span> "数据库链接失败".<span style="color: #008080;">mysql_error</span><span style="color: #000000;">();        }        </span><span style="color: #008080;">mysql_query</span>("SET NAMES 'UTF8'");    <span style="color: #008000;">//</span><span style="color: #008000;">编码转化</span>    <span style="color: #800080;">$db_select</span> = <span style="color: #008080;">mysql_select_db</span>(<span style="color: #800080;">$db</span>);  <span style="color: #008000;">//</span><span style="color: #008000;">选择表                                        //查询记录总数</span>    <span style="color: #800080;">$total_sql</span> = "select COUNT(*) from page"<span style="color: #000000;">;    </span><span style="color: #800080;">$total_result</span> = <span style="color: #008080;">mysql_query</span>(<span style="color: #800080;">$total_sql</span><span style="color: #000000;">);    </span><span style="color: #800080;">$total_row_arr</span> = <span style="color: #008080;">mysql_fetch_row</span>(<span style="color: #800080;">$total_result</span><span style="color: #000000;">);    </span><span style="color: #800080;">$total_row</span> = <span style="color: #800080;">$total_row_arr</span>[0];         <span style="color: #008000;">//</span><span style="color: #008000;">总条数    //总页数</span>    <span style="color: #800080;">$total</span> = <span style="color: #008080;">ceil</span>(<span style="color: #800080;">$total_row</span> / <span style="color: #800080;">$pagesize</span><span style="color: #000000;">);        </span><span style="color: #008000;">//</span><span style="color: #008000;">当前页数</span>    <span style="color: #800080;">$page</span> = @<span style="color: #800080;">$_GET</span>['p'] ? <span style="color: #800080;">$_GET</span>['p'] : 1<span style="color: #000000;">;         </span><span style="color: #008000;">//</span><span style="color: #008000;">limit 下限</span>    <span style="color: #800080;">$offset</span> = (<span style="color: #800080;">$page</span> - 1)*<span style="color: #800080;">$pagesize</span><span style="color: #000000;">;            </span><span style="color: #800080;">$sql</span> = "select * from page order by id limit {<span style="color: #800080;">$offset</span>},{<span style="color: #800080;">$pagesize</span>}"<span style="color: #000000;">;        </span><span style="color: #800080;">$result</span> = <span style="color: #008080;">mysql_query</span>(<span style="color: #800080;">$sql</span><span style="color: #000000;">);        </span><span style="color: #0000ff;">echo</span> "<p>PHP分页代码的小模块</p>"<span style="color: #000000;">;    </span><span style="color: #0000ff;">echo</span> "<table border=1 cellspacing=0 WIDTH=60% align=center>"<span style="color: #000000;">;    </span><span style="color: #0000ff;">echo</span> "<tr><td>ID</td><td>NAME</td></tr>"<span style="color: #000000;">;        </span><span style="color: #0000ff;">while</span>(<span style="color: #800080;">$row</span> = <span style="color: #008080;">mysql_fetch_assoc</span>(<span style="color: #800080;">$result</span><span style="color: #000000;">)){        </span><span style="color: #800080;">$id</span> = <span style="color: #800080;">$row</span>['id'<span style="color: #000000;">];        </span><span style="color: #800080;">$name</span> = <span style="color: #800080;">$row</span>['name'<span style="color: #000000;">];        </span><span style="color: #0000ff;">echo</span> "<tr><td>".<span style="color: #800080;">$id</span>."</td><td>".<span style="color: #800080;">$name</span>."</td></tr>"<span style="color: #000000;">;    }        </span><span style="color: #0000ff;">echo</span> "</table>"<span style="color: #000000;">;    </span><span style="color: #008000;">//</span><span style="color: #008000;">上一页 、下一页</span>        <span style="color: #800080;">$pageprev</span> = <span style="color: #800080;">$page</span> -1<span style="color: #000000;"> ;        </span><span style="color: #0000ff;">if</span>(<span style="color: #800080;">$page</span> > <span style="color: #800080;">$total</span><span style="color: #000000;">){            </span><span style="color: #800080;">$pagenext</span> = <span style="color: #800080;">$total</span><span style="color: #000000;">;        } </span><span style="color: #0000ff;">else</span><span style="color: #000000;">{            </span><span style="color: #800080;">$pagenext</span> = <span style="color: #800080;">$page</span> +1<span style="color: #000000;">;        }        </span><span style="color: #008000;">//</span><span style="color: #008000;"> 做链接 跳转；</span>        <span style="color: #0000ff;">echo</span> "<h3> <a href='page.php?p={<span style="color: #800080;">$pageprev</span>}'>上一页</a> 丨<a href='page.php?p={<span style="color: #800080;">$pagenext</span>}'>下一页</a></h3>"<span style="color: #000000;">;                </span><span style="color: #008080;">mysql_free_result</span>(<span style="color: #800080;">$result</span><span style="color: #000000;">);    </span><span style="color: #008080;">mysql_close</span>(<span style="color: #800080;">$conn</span><span style="color: #000000;">);</span>?>

キーポイント: 1. $sql = "select * from page order by id limit {$offset },{$pagesize}";

2. echo "

.php?p={$pageprev}'>前のページ丨次のページ";

この2点が重要な箇所ですページング技術と PHP コードの芸術を反映できます~

みんなで学びましょう~