Question

我每天必须得到一份事件清单：

$data = getEvents();
$content='';
foreach($data as $d)
{
    $content.= $d['date'].' '.$d['ID_Event']."<br />";
}
echo $content;
-------> 
2015-03-20 1
2015-03-22 2
2015-03-23 3

我必须检查是否在这个列表中，我在每两个日期之间有一个空的日子，然后放一个id = 4的默认事件，所以我有这个结果

  2015-03-20 1
**2015-03-21 4**
  2015-03-22 2
  2015-03-23 3

由于

Answer 1

这应该适合你：

（这里我首先按usort()的日期对$data数组进行排序。之后我为开始和结束之间的所有日期创建new DatePeriod()。我只是简单地循环所有日期，如果它在$data数组中，我将其添加到$output数组，否则我使用EventID 4创建一个元素。最后我只是打印数据）

<?php

    $data = getEvents();
    usort($data, function($a, $b){
        return strtotime($a["date"]) > strtotime($b["date"]);
    });

    $start = new DateTime($data[0]["date"]);
    $interval = new DateInterval('P1D');
    $end = (new DateTime($data[count($data)-1]["date"]))->add($interval);

    $period = new DatePeriod($start, $interval, $end);

    foreach($period as $date) {
        if(($key = array_search($date->format("Y-m-d"), array_column($data, "date"))) !== FALSE)
            $content[] = $data[$key];
        else
            $content[] = ["date" => $date->format("Y-m-d"), "ID_Event" => "4"];
    }

    array_map(function($v){
        echo $v['date'] . " " . $v['ID_Event'] . "<br />";
    }, $content);

?>

Answer 2

$data = getEvents();
$default = 4;
$content='';
foreach($data as $index=>$d)
{
    $date = new DateTime($d['date']);
    $content.= $d['date'].' '.$d['ID_Event']."<br />";

    //check if we have a next event
    if (isset($data[$index+1])){
        //get the date of next event
        $next = new DateTime($data[$index+1]['date']);
        //how many days till next event
        $difference = $date->diff($next)->d;
        //more then 1 day in between two events
        if($difference > 1){
            //loop through each day difference
            for($i = 2; $i <= $difference; $i++){
                //take the last even date and add one day to it
                $date->add(new DateInterval('P1D'));
                //add the new date to content with your default event
                $content.= $date->format('Y-m-d').' '.$default."<br />";
            }
        }
    }
}
echo $content;

在两个日期之间放置一个默认事件

2 个答案: