文件名称：Zebra-PHP-ArrayGroupBy.zip
文件大小：8KB
文件格式：ZIP
更新时间：2022-08-04 21:15:04
开源项目
为什么使用Zebra-PHP-ArrayGroupBy在如下场景中，我们总是希望能够在php中使用类似mysql的groupby操作：SQL过于复杂，造成数据库运算效率低下从数据库中读取出原始数据，在php中进行运算，增强代码重用率其他非数据库场景的数组归并场景Zebar-PHP-ArrayGroupBy能够做什么对二维数组进行归并归并的同时，支持对字段进行自定义处理比SQL更灵活的自定义函数，你可以随意编写归并和字段合并函数示例：$records = [ ['order_date' => '2014-01-01', 'price' => 5], ['order_date' => '2014-01-02', 'price' => 10], ['order_date' => '2014-01-03', 'price' => 20], ['order_date' => '2015-01-04', 'price' => 25], ]; $group_by_fields = [ 'order_date' => function($value){ return date('Y', strtotime($value)); } ]; $group_by_value = [ 'order_date' => [ 'callback' => function($value_array){ return substr($value_array[0], 0, 4); }, 'as' => 'year' ], 'price' => function($data){ return array_sum(array_column($data, 'price')); }, ]; $grouped = \Jenner\Zebra\ArrayGroupBy::groupBy($records, $group_by_fields, $group_by_value); print_r($grouped);结果：Array ( [0] => Array ( [year] => 2014 [price] => 35 ) [1] => Array ( [year] => 2015 [price] => 25 ) )举例归并过程中，实现对结果的中值计算归并过程中，对时间字段进行自定义处理，例如归并每5分钟的数据等等链式调用$records = [ ['bill_time'=>'2014-01-01 00:00:00', 'price'=>1, 'cnt'=>3,], ['bill_time'=>'2014-01-01 00:00:00', 'price'=>1, 'cnt'=>3,], ['bill_time'=>'2014-01-01 00:00:00', 'price'=>1, 'cnt'=>3,], ['bill_time'=>'2014-01-02 00:00:00', 'price'=>1, 'cnt'=>3,], ['bill_time'=>'2014-01-02 00:00:00', 'price'=>1, 'cnt'=>3,], ['bill_time'=>'2014-01-03 00:00:00', 'price'=>1, 'cnt'=>3,], ['bill_time'=>'2014-01-03 00:00:00', 'price'=>1, 'cnt'=>3,], ['bill_time'=>'2014-01-03 00:00:00', 'price'=>1, 'cnt'=>3,], ['bill_time'=>'2014-01-04 00:00:00', 'price'=>1, 'cnt'=>3,], ['bill_time'=>'2014-01-04 00:00:00', 'price'=>1, 'cnt'=>3,], ['bill_time'=>'2014-01-04 00:00:00', 'price'=>1, 'cnt'=>3,], ['bill_time'=>'2014-01-04 00:00:00', 'price'=>1, 'cnt'=>3,], ]; $group_by_fields = [ 'bill_time' => function($field){ return substr($field, 0, 10); } ]; $group_by_values = [ 'bill_time' => function($field_values){ return substr($field_values[0], 0, 10); }, 'price' => function($field_values){ return array_sum($field_values); }, 'cnt' => function($field_values){ return array_sum($field_values); } ]; $week_fields = [ 'bill_time' => function($field){ return date('w', strtotime($field)); } ]; $week_values = [ 'bill_time' => function($data){ return date('w', strtotime($data[0]['bill_time'])); }, 'price' => function($data){ return array_sum(array_column($data, 'price')); }, 'cnt' => function($data){ return array_sum(array_column($data, 'cnt')); } ]; $grouped = (new \Jenner\Zebra\ArrayGroupBy($records))->groupByField($group_by_fields)->groupByValue($group_by_values)->groupByField($week_fields)->groupByValue($week_values)->get(); print_r($grouped); 标签：Zebra
【文件预览】：
Zebra-PHP-ArrayGroupBy-master
----src()
--------Jenner()
----examples()
--------simple.php(1KB)
--------link.php(6KB)
----.travis.yml(148B)
----composer.lock(561B)
----README.md(4KB)
----autoload.php(332B)
----tests()
--------simple.php(1KB)
----.gitignore(53B)
----composer.json(438B)