比较日期值之间的两个阵列

Question

所以，我有两个数组中的一些日期：

$old_1 = array(
    array(
       'start_date' => '2014-09-06', 
       'end_date' => ' 2014-09-07' 
      ), 
      array(
       'start_date' => '2014-09-26', 
       'end_date' => '2014-09-28' 
      ), 
      array(
       'start_date' => '2014-09-29', 
       'end_date' => '2014-10-02' 
      ), 
      array(
       'start_date' => '2014-10-03', 
       'end_date' => ' 2014-10-04' 
      ), 
      array(
       'start_date' => '2014-10-06', 
       'end_date' => ' 2014-10-23' 
      ), 
     array(
       'start_date' => '2014-11-19', 
       'end_date' => '2014-11-23' 
      ), 
      array(
       'start_date' => '2014-11-25', 
       'end_date' => ' 2014-11-28' 
      ) 
); 

$new_1 = array(
    array(
       'start_date' => '2014-10-03', 
       'end_date' => ' 2014-10-04' 
      ), 
      array(
       'start_date' => '2014-10-10', 
       'end_date' => ' 2014-10-12' 
      ), 
      array(
       'start_date' => '2014-10-17', 
       'end_date' => '2014-10-19' 
      ), 
      array(
       'start_date' => '2014-11-19', 
       'end_date' => ' 2014-11-23' 
      ), 
      array(
       'start_date' => '2014-11-25', 
       'end_date' => '2014-11-28' 
      ) 
); 

我比较数组$ old_1和数组$ new_1，寻找日期是不是在数组$ old_1。如我所期待的结果：

$expected_1 = array(
    array(
      array(
       'start_date' => '2014-10-10', 
       'end_date' => ' 2014-10-12' 
      ), 
      array(
       'start_date' => '2014-10-17', 
       'end_date' => '2014-10-19' 
      ) 
); 

我用这个功能来做到这一点：

function checkDate($redDate, $date_range) 
    { 
     $start_object = DateTime::createFromFormat('Y-m-d', $redDate['start_date']); 
     $end_object = DateTime::createFromFormat('Y-m-d', $redDate['end_date']); 

     if (is_array($date_range)) { 
      foreach ($date_range as $key => $row) { 
       $range_start = DateTime::createFromFormat('Y-m-d', $row['start_date']); 
       $range_end = DateTime::createFromFormat('Y-m-d', $row['end_date']); 

       if ($start_object != $range_start && $end_object != $range_end) { 
        if ($start_object < $range_end && $end_object > $range_start) { 
         $date = $redDate; 
        } 
       } 
      } 
     } 

     return $date; 
    } 

$expected = array(); 
foreach ($new_1 as $dates) { 
$value = checkDate($dates, $old_1); 
if (!empty($value)) { 
$expected[] = $value; 
} 
} 

但是这功能不符合这两个数组工作：

$old_2 = array(
    array(
       'start_date' => '2014-09-26', 
       'end_date' => '2014-09-28' 
      ), 
      array(
       'start_date' => '2014-10-03', 
       'end_date' => ' 2014-10-04' 
      ) 
); 
$new_2 = array(
    array(
       'start_date' => '2014-09-26', 
       'end_date' => '2014-09-28' 
      ), 
      array(
       'start_date' => '2014-10-03', 
       'end_date' => ' 2014-10-04' 
      ), 
      array(
       'start_date' => '2014-10-17', 
       'end_date' => '2014-10-20' 
      ), 
      array(
       'start_date' => '2014-10-29', 
       'end_date' => ' 2015-01-02' 
      ) 
); 

我期待：

$expected_2 = array(
     array(
       array(
        'start_date' => '2014-10-17', 
        'end_date' => '2014-10-20' 
       ), 
       array(
        'start_date' => '2014-10-29', 
        'end_date' => ' 2015-01-02' 
       ) 
    ); 

但我去t空阵列：

$result_2 = array(
    ); 

我在比较函数中会错过什么吗？ 我需要您的意见，大家好，谢谢:)

Answer 1

试试这个checkDate功能：

function checkDate($redDate, $date_range) 
    { 
     $start_object = DateTime::createFromFormat('Y-m-d', $redDate['start_date']); 
     $end_object = DateTime::createFromFormat('Y-m-d', $redDate['end_date']); 

     if (is_array($date_range)) { 
      foreach ($date_range as $key => $row) { 
       $range_start = DateTime::createFromFormat('Y-m-d', $row['start_date']); 
       $range_end = DateTime::createFromFormat('Y-m-d', $row['end_date']); 

       // if the date was found return a null object 
       if ($start_object == $range_start && $end_object == $range_end) { 
        return null; 
       } 
      } 
     } 

     // the date was not found so return the date 
     return $redDate; 
    } 

Answer 2

有一些在你的例子日期的空间。这是你应该纠正的错误。

在这里，你有内心的痕迹如果。

2014-09-26 < 2014-10-04 TRUE && 2014-09-28 > 2014-10-03 FALSE 
2014-10-03 < 2014-09-28 FALSE && 2014-10-04 > 2014-09-26 TRUE 
2014-10-17 < 2014-09-28 FALSE && 2014-10-20 > 2014-09-26 TRUE 
2014-10-17 < 2014-10-04 FALSE && 2014-10-20 > 2014-10-03 TRUE 
2014-10-29 < 2014-09-28 FALSE && 2015-01-02 > 2014-09-26 TRUE 
2014-10-29 < 2014-10-04 FALSE && 2015-01-02 > 2014-10-03 TRUE 
array(0) { } 

无论如何，我不知道你在找什么。你想达到什么目的？