PHP 分页在网站开发中扮演着重要角色，能够帮助网页内容分页显示，提高用户体验。php小编西瓜将为大家介绍如何使用PHP实现分页功能，让网站更加易于浏览和管理。通过本文的学习，读者可以轻松掌握PHP分页的原理和实现方法，为网站开发增添新的技能和灵感。
我们还将演示另一种在 PHP 分页中添加 Prev<strong class="keylink">io</strong>us 和 Next 导航功能的方法。此方法仅添加了将相应页面导航到第一种方法的附加功能。
SQL 中使用 LIMIT 子句和 SELECT 语句对行进行分页我们可以使用 LIMIT 子句和 SELECT 语句来指定要在页面上显示的前 n 个结果。我们可以在 anchor 标签中提供页码作为 GET 方法来浏览页面。在此方法中，我们定义每页要显示的行数，并从数据库中检索所有行以计算所需的总页数。我们可以使用 $_GET 数组和 isset() 函数来获取用户请求的页码。
例如，创建一个变量 $results_per_page 并在其中存储 2。使用 <code><strong class="keylink">Mysql</strong>i_num_rows()Mysqli_num_rows() 函数查找数据库$number_of_results中的行数并存储在 ceil() 变量中。使用 $number_of_results 函数来确定显示行所需的总页数。将 ceil() 变量除以 $results_per_page 函数内的 $_GET 变量。使用 isset() 超全局变量和 page 函数来检查 $page 变量是否已设置。如果尚未设置，请将 1 变量设置为 $page。如果已设置变量，则将值分配给 1 变量。用 $page 减去 $this_page_first_result 变量并将其乘以 $this_page_first_result 变量。将操作存储在变量 LIMIT 中。编写一个带有 SQL 子句的 SELECT * FROM alpha LIMIT ' . $this_page_first_result . ',' . $results_per_page. 语句为 for 运行查询并显示结果。最后，创建一个 $page 循环以在 $number_of_page 变量和 echo 之间循环。在循环内，anchor href 标签并将 index.php?page'.$page 属性的值设置为 anchor。在 $page 标签之间写入
alpha在下面的示例中，数据库中的 ceil() 表包含六行。执行分页后，每页显示两行。$page 函数确定显示行所需的总页数。最初，$this_page_first_result 变量未设置，因此页面从第 1 页开始。$this_page_first_result 变量确定用户当前所在的页码。变量 $results_per_page 表示页面的第一行。变量 index.php 表示每页的结果数。输出部分显示 2 页面。当点击页面
<code><code class="language-php hljs" data-lang="php"><span style="display:flex;"><span><span style="color:#408080;font-style:italic">#php 7.x
</span></span></span><span style="display:flex;"><span><span style="color:#408080;font-style:italic"></span><span style="color:#666"><?</span>php
</span></span><span style="display:flex;"><span><span style="color:#19177c">$number_of_pages</span> <span style="color:#666">=</span> ceil(<span style="color:#19177c">$number_of_results</span><span style="color:#666">/</span><span style="color:#19177c">$results_per_page</span>);
</span></span><span style="display:flex;"><span><span style="color:#008000;font-weight:bold">if</span> (<span style="color:#666">!</span>isset(<span style="color:#19177c">$_GET</span>[<span style="color:#ba2121">'page'</span>])) {
</span></span><span style="display:flex;"><span><span style="color:#19177c">$page</span> <span style="color:#666">=</span> <span style="color:#666">1</span>;
</span></span><span style="display:flex;"><span>} <span style="color:#008000;font-weight:bold">else</span> {
</span></span><span style="display:flex;"><span><span style="color:#19177c">$page</span> <span style="color:#666">=</span> <span style="color:#19177c">$_GET</span>[<span style="color:#ba2121">'page'</span>];
</span></span><span style="display:flex;"><span>}
</span></span><span style="display:flex;"><span><span style="color:#19177c">$this_page_first_result</span> <span style="color:#666">=</span> (<span style="color:#19177c">$page</span><span style="color:#666">-</span><span style="color:#666">1</span>)<span style="color:#666">*</span><span style="color:#19177c">$results_per_page</span>;
</span></span><span style="display:flex;"><span><span style="color:#19177c">$sql</span><span style="color:#666">=</span><span style="color:#ba2121">'SELECT * FROM alpha LIMIT '</span> <span style="color:#666">.</span> <span style="color:#19177c">$this_page_first_result</span> <span style="color:#666">.</span> <span style="color:#ba2121">','</span> <span style="color:#666">.</span> <span style="color:#19177c">$results_per_page</span>;
</span></span><span style="display:flex;"><span><span style="color:#19177c">$result</span> <span style="color:#666">=</span> <strong class="keylink">mysql</strong>i_query(<span style="color:#19177c">$con</span>, <span style="color:#19177c">$sql</span>);
</span></span><span style="display:flex;"><span><span style="color:#008000;font-weight:bold">while</span>(<span style="color:#19177c">$row</span> <span style="color:#666">=</span> mysqli_fetch_array(<span style="color:#19177c">$result</span>)) {
</span></span><span style="display:flex;"><span><span style="color:#008000;font-weight:bold">echo</span> <span style="color:#19177c">$row</span>[<span style="color:#ba2121">'id'</span>] <span style="color:#666">.</span> <span style="color:#ba2121">' '</span> <span style="color:#666">.</span> <span style="color:#19177c">$row</span>[<span style="color:#ba2121">'value'</span>]<span style="color:#666">.</span> <span style="color:#ba2121">'<br>'</span>;
</span></span><span style="display:flex;"><span>}
</span></span><span style="display:flex;"><span><span style="color:#008000;font-weight:bold">for</span> (<span style="color:#19177c">$page</span><span style="color:#666">=</span><span style="color:#666">1</span>;<span style="color:#19177c">$page</span><span style="color:#666"><=</span><span style="color:#19177c">$number_of_pages</span>;<span style="color:#19177c">$page</span><span style="color:#666">++</span>) {
</span></span><span style="display:flex;"><span><span style="color:#008000;font-weight:bold">echo</span> <span style="color:#ba2121">'<a href="index.php?page='</span> <span style="color:#666">.</span> <span style="color:#19177c">$page</span> <span style="color:#666">.</span> <span style="color:#ba2121">'">'</span> <span style="color:#666">.</span> <span style="color:#19177c">$page</span> <span style="color:#666">.</span> <span style="color:#ba2121">'</a> '</span>;
</span></span><span style="display:flex;"><span>}
</span></span><span style="display:flex;"><span><span style="color:#bc7a00">?></span><span >
</span></span></span></code></code><code><code class="language-text hljs" data-lang="text"><span style="display:flex;"><span>1 A </span></span><span style="display:flex;"><span>2 B </span></span><span style="display:flex;"><span>1 2 3 </span></span></code></code>
Previous在 PHP 的分页中添加 Next 和 Previous我们可以在第一种方法的代码示例中添加一些额外的代码片段，以在分页中提供 Next 和 $page 导航功能。我们可以将 anchor 变量递增和递减 1 以指向上一页和下一页。我们可以使用 Next 标签中的递增和递减变量来实现 Previous 和
$prev例如，创建两个变量，$next 和 $page。用 1 减去 $prev 变量并将操作分配给 $page 变量。类似地，将 1 添加到 $next 变量并将其分配给 for 变量。在页码的 anchor 循环之前回显一个 Previous 标签，上面写着 anchor。将 href 标签的 index.php?page=' . $prev . 属性赋值为 $next。以同样的方式，使用 href 变量作为 page 属性中 Next 的值，为 anchor 创建另一个
Previous在下面的输出部分，它显示了第二页。单击 Next 进入第一页，单击
<code><code class="language-php hljs" data-lang="php"><span style="display:flex;"><span><span style="color:#408080;font-style:italic"># php 7.x
</span></span></span><span style="display:flex;"><span><span style="color:#408080;font-style:italic"></span><span style="color:#666"><?</span>php
</span></span><span style="display:flex;"><span><span style="color:#19177c">$prev</span> <span style="color:#666">=</span> <span style="color:#19177c">$page</span> <span style="color:#666">-</span><span style="color:#666">1</span>;
</span></span><span style="display:flex;"><span><span style="color:#19177c">$next</span> <span style="color:#666">=</span> <span style="color:#19177c">$page</span> <span style="color:#666">+</span><span style="color:#666">1</span>;
</span></span><span style="display:flex;"><span><span style="color:#008000;font-weight:bold">echo</span> <span style="color:#ba2121">' <a href="index.php?page='</span> <span style="color:#666">.</span> <span style="color:#19177c">$prev</span> <span style="color:#666">.</span> <span style="color:#ba2121">'"> Previous </a> '</span>;
</span></span><span style="display:flex;"><span><span style="color:#008000;font-weight:bold">for</span> (<span style="color:#19177c">$page</span><span style="color:#666">=</span><span style="color:#666">1</span>;<span style="color:#19177c">$page</span><span style="color:#666"><=</span><span style="color:#19177c">$number_of_pages</span>;<span style="color:#19177c">$page</span><span style="color:#666">++</span>) {
</span></span><span style="display:flex;"><span><span style="color:#008000;font-weight:bold">echo</span> <span style="color:#ba2121">'<a href="index.php?page='</span> <span style="color:#666">.</span> <span style="color:#19177c">$page</span> <span style="color:#666">.</span> <span style="color:#ba2121">'">'</span> <span style="color:#666">.</span> <span style="color:#19177c">$page</span> <span style="color:#666">.</span> <span style="color:#ba2121">'</a> '</span>;
</span></span><span style="display:flex;"><span>}
</span></span><span style="display:flex;"><span><span style="color:#008000;font-weight:bold">echo</span> <span style="color:#ba2121">' <a href="index.php?page='</span> <span style="color:#666">.</span> <span style="color:#19177c">$next</span> <span style="color:#666">.</span> <span style="color:#ba2121">'"> Next </a> '</span>;
</span></span><span style="display:flex;"><span><span style="color:#bc7a00">?></span><span >
</span></span></span></code></code><code><code class="language-text hljs" data-lang="text"><span style="display:flex;"><span>3 C </span></span><span style="display:flex;"><span>4 D </span></span><span style="display:flex;"><span>Previous 1 2 3 Next </span></span></code></code>
以上是PHP 分页的详细内容。更多信息请关注PHP中文网其他相关文章！
