How to get the current page number in PHP array pagination?

How to get the current page number during array paging in PHP: use $_GET['page'] to get the page number specified in the URL. Convert it to an integer and set a default value of 1. Calculate offset to page data. Paging arrays using the array_slice() function.

PHP Array Pagination: Get the current page number

When using array pagination in PHP, it is important to get the current page number so that Display data correctly. Here's how to do it:

Ways to get the current page number:

You can use the $_GET superglobal variable to get the page number specified in the URL page number.

$currentPage = isset($_GET['page']) ? (int) $_GET['page'] : 1;

• $_GET['page'] Get the value of the page parameter in the URL.
• (int) Convert the value to an integer, making sure it is a valid page number.
• ?: 1 If the page parameter does not exist or is invalid, the current page number is set to 1.

Practical case:

<?php
// 获取每页显示的项目数
$pageSize = 10;

// 获取要显示的数据数组
$data = [/* 数据数组 */];

// 获取当前页码
$currentPage = isset($_GET['page']) ? (int) $_GET['page'] : 1;

// 计算偏移量
$offset = ($currentPage - 1) * $pageSize;

// 获取分页后的数据
$pagedData = array_slice($data, $offset, $pageSize);
?>

// 此处渲染或处理分页后的数据...

Note:

• Make sure to include in the URL page as query parameter, for example example.php?page=2.
• array_slice() Function can be used for paged arrays, it accepts 3 parameters: array, offset and limit.
• You can also use a paging library, such as Zend Pagination or PHPixie Pagination, to simplify the paging process.

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