PHP | Ds\Vector insert() Function

The Ds\Vector::insert() function is an inbuilt function in PHP which is used to insert the element into the vector at the given index.

Syntax:

void public Ds\Vector::insert( $index, $values )

Parameters: This function accepts two parameter as mentioned above and described below:

• $index: This parameter holds the index at which element is to be inserted.
• $value: This parameter holds the value which is to be inserted.

Return Value: This function does not return any value.

Exception: This function returns OutOfRangeException if the index is not valid.

Below programs illustrate the Ds\Vector::insert() function in PHP:

Program 1:

<?php

// Declare new vector
$vector = new \Ds\Vector([1, 2, 4, 5]);

// Display the Vector element
print_r($vector);

// Use insert() function to add
// element in the vector
$vector->insert(2, 3);

// Display the vector element
print_r($vector);

?>

Output:

Ds\Vector Object
(
    [0] => 1
    [1] => 2
    [2] => 4
    [3] => 5
)
Ds\Vector Object
(
    [0] => 1
    [1] => 2
    [2] => 3
    [3] => 4
    [4] => 5
)

Program 2:

<?php

// Declare new vector
$vector = new \Ds\Vector(["geeks", "for", "geeks"]);

// Display the Vector element
print_r($vector);

// Use insert() function to add
// element in the vector
$vector->insert(1, "practice");

// Display the vector element
print_r($vector);

?>

Output:

Ds\Vector Object
(
    [0] => geeks
    [1] => for
    [2] => geeks
)
Ds\Vector Object
(
    [0] => geeks
    [1] => practice
    [2] => for
    [3] => geeks
)

Reference: http://php.net/manual/en/ds-vector.insert.php