【发布时间】：2021-04-01 19:42:31
【问题描述】：
由于我正在尝试了解有关 PHP 的更多信息，因此我想将分页添加到数组的
我有一个 JSON 输出，我可以通过 foreach 读取和回显它。但我无法显示 10 或 20 条记录。
我使用了this页面的代码：
但是我错过了可以存储数组回声的地方。
$persons = '[
{"FrstName":"Henry","Middlename":"","LastName":"Walton","Online":true,"DeptId":"4"},
{"FrstName":"Klaus","Middlename":"","LastName":"Mikaelson","Online":true,"DeptId":"2"},
{"FrstName":"Kylo","Middlename":"","LastName":"Ren","Online":false,"DeptId":"4"},
{"FrstName":"Stan","Middlename":"","LastName":"Lee","Online":false,"DeptId":"3"},
{"FrstName":"Kevin","Middlename":"","LastName":"McNally","Online":false,"DeptId":"3"},
{"FrstName":"Katherine","Middlename":"","LastName":"Pierce","Online":false,"DeptId":"2"},
{"FrstName":"Clint","Middlename":"","LastName":"Barton","Online":true,"DeptId":"3"},
{"FrstName":"Avery","Middlename":"","LastName":"Walton","Online":true,"DeptId":"4"},
{"FrstName":"Peter","Middlename":"","LastName":"Kap","Online":true,"DeptId":"2"},
{"FrstName":"Denzo","Middlename":"","LastName":"Falc","Online":false,"DeptId":"4"},
{"FrstName":"Eveline","Middlename":"","LastName":"Benzel","Online":false,"DeptId":"3"},
{"FrstName":"Bill","Middlename":"","LastName":"Libuz","Online":false,"DeptId":"3"},
{"FrstName":"April","Middlename":"","LastName":"Gonzo","Online":false,"DeptId":"2"},
{"FrstName":"Harry","Middlename":"","LastName":"Geraldson","Online":true,"DeptId":"3"},
{"FrstName":"Heraldson","Middlename":"","LastName":"McGree","Online":false,"DeptId":"3"}
{"FrstName":"Abraham","Middlename":"","LastName":"Retz","Online":true,"DeptId":"4"},
{"FrstName":"June","Middlename":"","LastName":"Pharee","Online":true,"DeptId":"2"},
{"FrstName":"Anthony","Middlename":"","LastName":"Gonzales","Online":false,"DeptId":"4"},
{"FrstName":"Billy","Middlename":"","LastName":"Scott","Online":false,"DeptId":"3"},
{"FrstName":"Anika","Middlename":"","LastName":"Rose","Online":false,"DeptId":"3"},
{"FrstName":"Kristen","Middlename":"","LastName":"Fontana","Online":false,"DeptId":"2"},
{"FrstName":"Olivia","Middlename":"","LastName":"Menzel","Online":true,"DeptId":"3"},
{"FrstName":"Mark","Middlename":"van","LastName":"Gad","Online":false,"DeptId":"3"}
{"FrstName":"Hope","Middlename":"van","LastName":"Dyne","Online":false,"DeptId":"3"}
]';
$page = ! empty( $_GET['page'] ) ? (int) $_GET['page'] : 1;
$total = count( $persons ); //total items in array
$limit = 10; //per page
$totalPages = ceil( $total/ $limit ); //calculate total pages
$page = max($page, 1); //get 1 page when $_GET['page'] <= 0
$page = min($page, $totalPages); //get last page when $_GET['page'] > $totalPages
$offset = ($page - 1) * $limit;
if( $offset < 0 ) $offset = 0;
$yourDataArray = array_slice( $persons, $offset, $limit );
$link = 'index.php?page=%d';
$pagerContainer = '<div style="width: 300px;">';
if( $totalPages != 0 )
{
if( $page == 1 )
{
$pagerContainer .= '';
}
else
{
$pagerContainer .= sprintf( '<a href="' . $link . '" style="color: #c00"> « prev page</a>', $page - 1 );
}
$pagerContainer .= ' <span> page <strong>' . $page . '</strong> from ' . $totalPages . '</span>';
if( $page == $totalPages )
{
$pagerContainer .= '';
}
else
{
$pagerContainer .= sprintf( '<a href="' . $link . '" style="color: #c00"> next page » </a>', $page + 1 );
}
}
$pagerContainer .= '</div>';
echo $pagerContainer;我想知道如何解决这个问题，以便为我的数组使用分页。
【问题讨论】：
-
您是否知道数组中只有 8 个项目，并且您的每页限制为 10，所以您只能获得 1 页？
-
嗨，这只是一个示例，我会添加一些其他项目
-
你可能想先
$persons = json_decode($persons, true);你的JSON来获取一个数组 -
我明白了，但现在我的页面中只有这个，其余的都是空的“第 1 页到第 7 页下一页»”
-
这真的很有帮助！非常感谢！现在发生了一件奇怪的事情，当我执行一个需要用于完整代码的 foreach 时，我能够获得名字、中间名、姓氏和其他名字。当我询问已经解码的代码时，它不起作用。