php logic one

Querstion :-



find login to print

1.input => ab
output => a, ab, b
2. bana
output => b, ba, ban, bana, a, an, ana, n,na, a




Ans :-


$str = "12345";
$ar = [];
for($ui=0; $ui < strlen($str); $ui++) {
  $newstr = ($ui != 0)?substr($str, $ui):$str; 
  for($i=1; $i <= strlen($newstr); $i++) {
    $ar[] = substr($newstr, 0, $i);
  }
}
echo "<pre>"; print_r($ar);



Output :-

Array
(
    [0] => 1
    [1] => 12
    [2] => 123
    [3] => 1234
    [4] => 12345
    [5] => 2
    [6] => 23
    [7] => 234
    [8] => 2345
    [9] => 3
    [10] => 34
    [11] => 345
    [12] => 4
    [13] => 45
    [14] => 5
)