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How to use the Ds\Vector join() function in PHP

Muhammad Ashir

PHP provides an efficient list implementation in the form of the DS\Vector class. The DS\Vector class is a sequence of values stored in a contiguous buffer. The buffer can resize automatically depending on the number of elements.

This is the most efficient sequential data structure because a value’s index is directly mapped to its index in the buffer. The size of DS\Vector is not bound by any factor or exponent and can be anything.

DS\Vector::join

DS\Vector::join joins all the values in the vector as a string.

Syntax

public Ds\Vector::join(string $glue = ?): string

Parameters

  • glue: Optional string separator that is inserted between each value.

Return value

Ds\Vector::join returns a string formed by joining the values in the buffer, separated by the optional glue string.

Code

<?php

$vector = new \Ds\Vector(["hello", "world!", 1, 2, 3]);

var_dump($vector->join(" "));
?>

Output

string(18) "hello world! 1 2 3"

To run this program, you need to install Data Structures for PHP on your local machine.

In the code above, we create a new vector and initialize it with elements of varying types. Then, we use the var_dump method, which dumps information about a variable to show the contents of the result of join.

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Muhammad Ashir
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