PHP - Ds Sequence apply() Function

Ds\Sequence::apply() function can update all values by applying a callback function to each value.

Syntax

public abstract void Ds\Sequence::apply( callable $callback )

Ds\Sequence::apply() function can update all values by applying a callback function to each value in a sequence. This function doesn't return any value.

Example 1

<?php  
   $seq = new \Ds\Vector([10, 20, 30, 40, 50]);
   $seq->apply(function($val) {
      return $val / 5;  
   });  
   print_r($seq);
?> 

Example 2

<?php  
   $seq = new \Ds\Vector([2, 5, 7, 9, 10]);
   $seq->apply(function($val) {
      return $val;  
   });  
   var_dump($seq);
?>