如何在两个指定键之间提取一系列元素？

Question

I have two arrays, the first one is:

Array (
  [0] => Mar
  [1] => Jun
)

and the second one is:

Array (
  [Jan] => January
  [Feb] => February
  [Mar] => March
  [Apr] => April
  [May] => May
  [Jun] => June
  [Jul] => July 
  [Aug] => August
  [Sep] => September
  [Oct] => October
  [Nov] => November
  [Dec] => December
)

I'd like to extract the elements from the first nominated month to the second nominated month in the search array.

My expected result is:

Array (
  [Mar] => March
  [Apr] => April
  [May] => May
  [Jun] => June
)

Answer 1

Please check below answer, May be it will help you:

$fullArray = [
    'Jan' => 'January',
    'Feb' => 'February',
    'Mar' => 'March',
    'Apr' => 'April',
    'May' => 'May',
    'Jun' => 'June',
    'Jul' => 'July',
    'Aug' => 'August',
    'Sep' => 'September',
    'Oct' => 'October',
    'Nov' => 'November',
    'Dec' => 'December',
];


$arrayToCompare = [
    'Mar', 'Jun'
];



$matchedArray = array();

$matchedFirst = false;
$matchedLast = false;

foreach ($fullArray as $key => $value) {
    if ($key == $arrayToCompare[0]) {
        $matchedFirst = true;
    }

    if ($key == $arrayToCompare[1]) {
        $matchedLast = true;
    }

    if ($matchedFirst == true) {
        $matchedArray[$key] = $value;
    }

    if ($matchedLast == true) {
        $matchedArray[$key] = $value;
        break;
    }

}

print_r($matchedArray);
die;