Suppose we have two PHP arrays. Now if we want to merge these two array, then there is a function in PHP to do this. Just use the below code to merge two arrays in PHP.
$combinedArray = array_merge($firstArray, $secondArray);
The above code will return a new combined array of the two arrays.
Now if we want to sort this new array, then :
foreach($combinedArray AS $val) {
$dates[] = strtotime($val['date']); // here 'date' is the key in our $firstArray and $secondArray and our new array will be sorted according to this.
}
array_multisort($dates, SORT_ASC, $combinedArray);
Note :- Both the arrays $firstArray and $secondArray must have the ‘date’ key, because the new array $combinedArray will be sorted according to this.