Generate month & year array from two dates in PHP [closed] - php

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Generate month & year array from two dates in PHP
i have two MM/YYYY from form
ex:
$start = "2/2016";
$end = "11/2017"
i need the output in all array of months And year
like this in php
$monthArray = Array (
[0] => 2
[1] => 3
[2] => 4
[3] => 5
[4] => 6
[5] => 7
[6] => 8
[7] => 9
[8] => 10
[9] => 11
[10] => 12
[11] => 1
[12] => 2
[13] => 3
[14] => 4
[15] => 5
[16] => 6
[17] => 7
[18] => 8
[19] => 9
[20] => 10
[21] => 11
);
$yearArray = Array (
[0] => 2016
[1] => 2016
[2] => 2016
[3] => 2016
[4] => 2016
[5] => 2016
[6] => 2016
[7] => 2016
[8] => 2016
[9] => 2016
[10] => 2016
[11] => 2017
[12] => 2017
[13] => 2017
[14] => 2017
[15] => 2017
[16] => 2017
[17] => 2017
[18] => 2017
[19] => 2017
[20] => 2017
[21] => 2017
);
Function would be better. Please help. Thanks in advance

Answer 1

If you want to use datetime you can do:
<?php
$start = date_create_from_format("m/Y","2/2016")->modify("first day of this month");
$end = date_create_from_format("m/Y","11/2017")->modify("first day of this month");
$timespan = date_interval_create_from_date_string("1 month");
$months = [];
$years = [];
while ($start <= $end) {
$months[] = $start->format("m");
$years[] = $start->format("Y");
$start = $start->add($timespan);
}
print_r([ $months, $years ]);
Example: http://sandbox.onlinephpfunctions.com/code/8bfa8cc9481aa8a13d83f62d9c1c6c7927654842

Answer 2

<?php
$start = "2/2016";
$end = "11/2017";
$start = explode('/', $start);
$end = explode('/', $end);
$d1 = strtotime($start[1] . '-' . $start[0] . '-01');
$d2 = strtotime($end[1] . '-' . $end[0] . '-01');
$min_date = min($d1, $d2);
$max_date = max($d1, $d2);
$month = [];
$year = [];
while (($min_date = strtotime("+1 MONTH", $min_date)) <= $max_date) {
$month[] = date('m',$min_date);
$year[] = date('Y',$min_date);
}
print_r($month);
print_r($year);

Answer 3

This should work faster and use less memory than the existing answers because it doesn't rely on creation and manipulation of date objects (especially parsing strings into date objects):
/**
* Takes start and end date string in format 'mm/yyyy' along with a $months and $years
* arrays; modifies the arrays in place to add all months and years between the dates
*/
function listMonthsAndYears($start, $end, &$months, &$years) {
list($startM, $startY) = array_map('intval', explode('/',$start));
list($endM, $endY) = array_map('intval', explode('/',$end));
$m = $startM;
$y = $startY;
while($endY > $y || ($endY === $y && $endM >= $m) ){
$months[]= $m;
$years[] = $y;
$m++;
if($m > 12){ // loop to the next year
$m = 1;
$y++;
}
}
}
Usage:
$start = '2/2016';
$end = '11/2017';
listMonthsAndYears($start, $end, $months, $years);
Live demo