I've array $a
$a[1] = "A";
$a[2] = "B";
$a[3] = "C";
$a[4] = "D";
Let's say, "X" is new value that I want append middle position in array, I want to add it to 2nd array position that is $a[2] but I want to increase the count keys of array that will become like:
$a[1] = "A";
$a[2] = "X";
$a[3] = "B";
$a[4] = "C";
$a[5] = "D";
In this case, I want to implement this within a loop by checking some conditions with if, I tried with slice and splice both are not working
 
     
    