PHP | Ds\Map isEmpty() Function

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The Ds\Map::isEmpty() function in PHP is used to check whether a given Map is empty or not. A Map is empty to be empty if does not contain any key-value pair.

Syntax:

Ds\Map public Ds\Map::isEmpty ( void )

Parameter: It does not accepts any parameter.

Return value: This function returns a boolean value, True or False based on whether the Map object is Empty or not.

Below program illustrate the Ds\Map::isEmpty() function in PHP:

Program 1:

Output:

bool(false)

Program 2:

<?php 
// PHP program to illustrate the isEmpty() 
// function of Ds\map 
  
// Creating a Map 
$map = new \Ds\Map(); 
  
// Check if the Map is empty or not 
var_dump($map->isEmpty()); 
  
?> 

Output:

bool(true)

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

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