在PHP中对工作日时间组合数组进行排序

I have an array in the form:

    $sortme = array(
        'Monday 10:00',
        'Friday 12:00',
        'Tuesday 14:00',
        'Monday 08:00',
        'Wednesday 11:00',
    );

The number of elements is unknown (so I couldn't use the uksort approach with a reference array for the order of weekdays as Mark suggested here). I want the result to be sorted chronologically and always starting with Monday like this:

    $sorted = array(
        'Monday 08:00',
        'Monday 10:00',
        'Tuesday 14:00',
        'Wednesday 11:00',
        'Friday 12:00',
    );

Is there an elegant way to do it without resorting to transform the array to a two-dimensional one and iterating? This would have been my only idea so far.

You can use usort function in PHP, which will do sorting using user-specified comparison function. The code below is probably not the most efficient, but it'll produce the correct result.

$sortme = array(
        'Monday 10:00',
        'Friday 12:00',
        'Tuesday 14:00',
        'Monday 08:00',
        'Wednesday 11:00',
    );

usort($sortme, function($a, $b) { return strcmp(date('N H:i', strtotime($a)), date('N H:i', strtotime($b))); });
print_r($sortme);

I was trying a one-liner with array_multisort and array_map or call_user_func_array but my brain is fried. Try this:

foreach($sortme as $val) {
    $sorter[] = date('N H:i', strtotime($val));
}
array_multisort($sorter, SORT_ASC, $sortme);

EDIT: One-long-liner:

array_multisort(array_map(function($v){return date('N H:i',strtotime($v));}, $sortme), SORT_ASC, $sortme);

DEMO

array_multisort(
                array_map(
                          function($v){
                              return date('N H:i',strtotime($v));
                          }, 
                            $sortme),
                                     SORT_ASC, $sortme);

$sortme = array(
    'Monday 10:00',
    'Friday 12:00',
    'Tuesday 14:00',
    'Monday 08:00',
    'Wednesday 11:00',
);

$sorted = array();

// Add the day of week in the begining of the string
for($i = 0; $i < count($sortme); $i++){

    $day = explode(' ', $sortme[$i]);
    @$dayNumber = date('w', strtotime($day[0]));        

    array_push($sorted, $dayNumber . $day[0] . ' '. $day[1]);   

}

// Sort the array
asort($sorted);

// Remove the day of week
for($i = 0; $i < count($sorted); $i++){
    $sorted[$i] = substr($sorted[$i], 1);
}

var_dump($sorted);

You just have to convert the array items into something that is sortable:

function sortTimes(array $dates) {
    $base = strtotime('next monday 00:00');
    usort($dates, function($a, $b) use ($base) {
        return strtotime($a, $base) - strtotime($b, $base);
    });
    return $dates;
}