PHP | Ds\Pair::isEmpty() Function

Hello folks! welcome back to a new edition of our tutorial on PHP. In this tutorial guide, we are going to be studying about the PHP Ds\Pair::isEmpty() Function.

The built-in PHP Ds\Pair::isEmpty() function returns whether the pair is empty.

Syntax

Following below is the syntax to use this function -

public bool Ds\Pair::isEmpty( void )

READ: PHP | Ds\Pair::construct() Function

Parameter Details

This built-in PHP function does not have any parameters.

Return Value

This PHP function returns TRUE if the pair is empty, otherwise FALSE.

Example1

Try out the following example below -

<?php 
   $map = new \Ds\Map(["1" => "Web", "2" => "Design", "3" => "Tutorialz", "4" => "Nigeria"]); 
   var_dump($map->isEmpty()); 
?>

Example2

Try out the following example below -

<?php 
   $map = new \Ds\Map(); 
   
   var_dump($map->isEmpty()); 
?>

READ: PHP | Ds\Pair::copy Function

Alright guys! This is where we are going to be rounding up for this tutorial post. In our next tutorial, we are going to be discussing about the Ds\Pair::jsonSerialize() Function in PHP.

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