PHP将2个阵列与时间范围进行比较

Question

Hope anybody can help me here. I have 2 Arrays with given start and end times. What i need to do is to check if the time range from Array 1 is in the range of Array 2 and if it is in the range it have to be removed from Array 2.

Array 1:

Array ( 
      [0] => Array ( [from] => 10:00:00 [to] => 10:30:00 ) 
      [1] => Array ( [from] => 11:00:00 [to] => 11:45:00 )
      [2] => Array ( [from] => 14:00:00 [to] => 15:00:00 ) 
      [3] => Array ( [from] => 16:30:00 [to] => 17:00:00 ) 
)

Array 2:

Array ( 
      [0] => Array ( [from] => 09:30 [to] => 10:00 ) 
      [1] => Array ( [from] => 10:15 [to] => 10:45 ) 
      [2] => Array ( [from] => 11:00 [to] => 11:30 ) 
      [3] => Array ( [from] => 11:45 [to] => 12:15 ) 
      [4] => Array ( [from] => 12:30 [to] => 13:00 ) 
      [5] => Array ( [from] => 13:15 [to] => 13:45 ) 
      [6] => Array ( [from] => 14:00 [to] => 14:30 ) 
      [7] => Array ( [from] => 14:45 [to] => 15:15 ) 
      [8] => Array ( [from] => 15:30 [to] => 16:00 ) 
      [9] => Array ( [from] => 16:15 [to] => 16:45 ) 
      [10] => Array ( [from] => 17:00 [to] => 17:30 ) 
      [11] => Array ( [from] => 17:45 [to] => 18:15 ) 
      [12] => Array ( [from] => 18:30 [to] => 19:00 ) 
      [13] => Array ( [from] => 19:15 [to] => 19:45 ) 
) 

Hope there is somebody out there who can help me with this. Thanks in advance for your help!

Answer 1

PS: Edited as the OP has provided more details.

This should be a comment, but: o "reputation!" you made this an answer!!

Your question was incomplete and ambiguous! (more information added Afterwards)

Just check every available time slot against the reserved ones!, and if the available time slot is still "available", then add it to a temporary array and finally update the available time slots' array:

<?php
$array1 = Array (
0 => Array ( 'from' => '10:00:00', 'to' => '10:30:00' ),
1 => Array ( 'from' => '11:00:00', 'to' => '11:45:00' ),
2 => Array ( 'from' => '14:00:00', 'to' => '15:00:00' ),
3 => Array ( 'from' => '16:30:00', 'to' => '17:00:00' ) );

$array2 = Array(
0 => Array ( 'from' => '09:30', 'to' => '10:00' ),
1 => Array ( 'from' => '10:15', 'to' => '10:45' ),
2 => Array ( 'from' => '11:00', 'to' => '11:30' ),
3 => Array ( 'from' => '11:45', 'to' => '12:15' ),
4 => Array ( 'from' => '12:30', 'to' => '13:00' ),
5 => Array ( 'from' => '13:15', 'to' => '13:45' ),
6 => Array ( 'from' => '14:00', 'to' => '14:30' ),
7 => Array ( 'from' => '14:45', 'to' => '15:15' ),
8 => Array ( 'from' => '15:30', 'to' => '16:00' ),
9 => Array ( 'from' => '16:15', 'to' => '16:45' ),
10 => Array ( 'from' => '17:00', 'to' => '17:30' ),
11 => Array ( 'from' => '17:45', 'to' => '18:15' ),
12 => Array ( 'from' => '18:30', 'to' => '19:00' ),
13 => Array ( 'from' => '19:15', 'to' => '19:45' ) );

$a2 = array();
foreach( $array2 as $timeRange2 )
{
    $a2f = strtotime($timeRange2['from']);
    $a2t = strtotime($timeRange2['to']);
    $bInArray2 = false;
    foreach ( $array1 as $timeRange1 )
    {
        $a1f = strtotime($timeRange1['from']);
        $a1t = strtotime($timeRange1['to']);

        if(($a1f >= $a2f && $a1f <= $a2t) || ($a1t >= $a2f && $a1t <= $a2t))
        {
            $bInArray2 = true;
            break;
        }
    }
    if(!$bInArray2)
        $a2[] = $timeRange2;
}
$array2 = $a2;
echo var_dump($array2);
?>