Question

我的mysql数据库中有下表，其中包含开始和结束TIME数据类型的事件：

start_time  end_time    day 
08:00:00    16:00:00    1
08:00:00    16:00:00    1
08:00:00    16:00:00    4
08:00:00    16:00:00    5

我想创建一个多维数组，每天都有一个数组中的start_time和end_time，就像这样;

array:3 [
    1 => array:2 [
        0 => array:2 [
            0 => "08:00"
            1 => "16:00"
        ]
        1 => array:2 [
            0 => "08:00"
            1 => "16:00"
        ]
    ]
    4 => array:1 [
        0 => array:2 [
            0 => "08:00"
            1 => "16:00"
        ]
    ]
    5 => array:1 [
        0 => array:2 [
            0 => "08:00"
            1 => "16:00"
        ]
    ]
]

我有一个变量，其中包含我可以预先通过的所有事件。

这是可行的还是我需要使用数据透视表来保持这两个值分开？

谢谢！

Answer 1

循环获取所提取的行并使用day作为键并动态添加元素[]并将时间指定为数组：

foreach($rows as $row) {
    $result[$row['day']][] = array($row['start_time'],
                                   $row['end_time']);
}

或者从DB获取时执行此操作：

while($row = /* fetch_function() */) {
    $result[$row['day']][] = array($row['start_time'],
                                   $row['end_time']);
}

Answer 2

<?php
 $records = array(
    array(
        'start_time' => '00:11:22',
        'end_time'   => '11:22:33',
        'day' => 1
    ),
    array(
        'start_time' => '20:11:22',
        'end_time'   => '21:22:33',
        'day' => 2
    ),
    array(
        'start_time' => '10:11:22',
        'end_time'   => '11:22:33',
        'day' => 1
    )

); // Your actual data would replace this of course

 $sorted = array();
 foreach($records as $record){
     // Group by day
     $sorted[$record['day']][] = $record;
 }


 // Group again
 $results = array();
 foreach($sorted as $day => $records){
     foreach($records as $record){
        $results[$day][] = 
        array($record['start_time'],$record['end_time']);   
     }

 }

 var_dump($results);

使用基于行值

2 个答案: