The Ds\Vector::__construct() function is an inbuilt function in PHP which is used to creates a new instance.
Syntax:
public Ds\Vector::__construct( $values )
Parameters: This function accepts single parameter $values which holds the traversable object or array to use initial values.
Below programs illustrate the Ds\Vector::__construct() function in PHP:
Program 1:
<?php // Declare a new Vector $vect = new \Ds\Vector();
print_r( $vect );
// Declare a new set $vect = new \Ds\Vector([ 'G' , 'E' , 'K' , 'S' ]);
print_r( $vect );
?> |
Output:
Ds\Vector Object ( ) Ds\Vector Object ( [0] => G [1] => E [2] => K [3] => S )
Program 2:
<?php // Declare a new vector $vect = new \Ds\Vector([2, 3, 6, 7, 8]);
var_dump( $vect );
// Declare a new vector $vect = new \Ds\Vector([2, 3, 5, 8, 9, 10]);
var_dump( $vect );
?> |
Output:
object(Ds\Vector)#1 (5) { [0]=> int(2) [1]=> int(3) [2]=> int(6) [3]=> int(7) [4]=> int(8) } object(Ds\Vector)#2 (6) { [0]=> int(2) [1]=> int(3) [2]=> int(5) [3]=> int(8) [4]=> int(9) [5]=> int(10) }
Reference: https://www.php.net/manual/en/ds-vector.construct.php