时间段交叉重新整理

<?php
$from_time=explode(',', '02:02,10:35,10:25,10:30,13:00,13:05,14:00,10:00');
$to_time=explode(',', '09:20,11:05,10:55,11:00,14:00,14:05,15:00,16:00');

array_multisort($from_time);
array_multisort($to_time);

$i = 0;
$j = 0;
while(true){
    $j ++;
    if(!isset($to_time[$i]) || !isset($to_time[$j]))break;
    if($i == $j)continue;
    if($to_time[$i] >= $from_time[$j] && $to_time[$i] <= $to_time[$j]){
        $from_time[$j] = $from_time[$i];
        unset($to_time[$i]);
        unset($from_time[$i]);
        $to_time = array_values($to_time);
        $from_time = array_values($from_time);
        $i = 0;
        $j = 0;
    }
    if($j >= count($to_time) - 1){
        $j = 0;
        $i ++;
    }
}

print_r($from_time);
print_r($to_time);

/*
Array
(
    [0] => 02:02
    [1] => 10:00
)
Array
(
    [0] => 09:20
    [1] => 16:00
)
*/
























//支持隔天时段
//支持隔天时段
//支持隔天时段


$from_time=explode(',', '02:02,10:35');
$to_time=explode(',', '09:20,01:45');

$from_time = array_map(function($v){
    return strtotime(date('Y-m-d '.$v.':00'));
}, $from_time);

$to_time = array_map(function($v){
    return strtotime(date('Y-m-d '.$v.':59'));
}, $to_time);

foreach($from_time as $k => $v){
    if($v > $to_time[$k]){
        $to_time[$k] += 86400;
    }
}

array_multisort($from_time);
array_multisort($to_time);

$i = 0;
$j = 0;
while(true){
    $j ++;
    if(!isset($to_time[$i]) || !isset($to_time[$j]))break;
    if($i == $j)continue;
    if($to_time[$i] >= $from_time[$j] && $to_time[$i] <= $to_time[$j]){
        $from_time[$j] = $from_time[$i];
        unset($to_time[$i]);
        unset($from_time[$i]);
        $to_time = array_values($to_time);
        $from_time = array_values($from_time);
        $i = 0;
        $j = 0;
    }
    if($j >= count($to_time) - 1){
        $j = 0;
        $i ++;
    }
}

$from_time = array_map(function($v){
    return date('H:i', $v);
}, $from_time);

$to_time = array_map(function($v){
    return date('H:i', $v);
}, $to_time);


print_r($from_time);
print_r($to_time);

/*
Array
(
    [0] => 02:02
    [1] => 10:00
)
Array
(
    [0] => 09:20
    [1] => 16:00
)
*/