PHP | Ds\Pair::isEmpty() Function

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 )


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()); 
?>


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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