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PHP | Ds\Vector insert() Function

Last Updated : 22 Aug, 2019
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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 
<?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 
<?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

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