Ds\Sequence::insert

Inserts values at a given index

&reftitle.description; abstract public `void` `Ds\Sequence::insert` `int` `index` `mixed` `values`

Inserts values into the sequence at a given index.

&reftitle.parameters;

`index`

- The index at which to insert. `0 <= index <= count`

  You can insert at the index equal to the number of values.

`values`

- The value or values to insert.

&reftitle.returnvalues;

&return.void;

&reftitle.errors;

`OutOfRangeException` if the index is not valid.

&reftitle.examples;

### `Ds\Sequence::insert` example

    <?php
    $sequence = new \Ds\Vector();

    $sequence->insert(0, "e");             // [e]
    $sequence->insert(1, "f");             // [e, f]
    $sequence->insert(2, "g");             // [e, f, g]
    $sequence->insert(0, "a", "b");        // [a, b, e, f, g]
    $sequence->insert(2, ...["c", "d"]);   // [a, b, c, d, e, f, g]

    var_dump($sequence);
    ?>

&example.outputs.similar;

    object(Ds\Vector)#1 (7) {
      [0]=>
      string(1) "a"
      [1]=>
      string(1) "b"
      [2]=>
      string(1) "c"
      [3]=>
      string(1) "d"
      [4]=>
      string(1) "e"
      [5]=>
      string(1) "f"
      [6]=>
      string(1) "g"
    }