PHP | DsVector isEmpty() Function

PHP | Ds\Collection isEmpty() Function

Last Updated : 21 Jan, 2019

The Ds\Collection::isEmpty() function is an inbuilt function in PHP which is used to returns whether collection is empty. Syntax:

Ds\Collection::isEmpty ( void ) : bool

Parameters: This function does not accepts any parameters. Return Value: It returns True if collection is empty or False otherwise. Below programs illustrate the Ds\Collection::isEmpty() function in PHP: Example 1:

php

<?php

// Create a collection
$collection = new \Ds\Vector([10, 15, 21, 13, 16, 18]);

// Use isEmpty function
$res = $collection->isEmpty();

// Display the result
var_dump($res);

// Create a collection
$collection = new \Ds\Vector();

// Use isEmpty function
$res = $collection->isEmpty();

// Display the result
var_dump($res);
?>

Output:

bool(false) 
bool(true)

Example 2:

php

<?php

// Create a collection
$collection = new \Ds\Vector();

// display output
var_dump($collection->isEmpty());

// Create a collection
$collection = new \Ds\Vector([1, 3, 5, 2, 6]);

// Display output
var_dump($collection->isEmpty());

?>

Output:

bool(true) 
bool(false)

Reference: http://php.net/manual/en/ds-collection.isempty.php

PHP | DsVector isEmpty() Function

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vijay_raj

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