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  1. <?php
  2.  
  3.  $originalArray   = array('red','blue','green','purple', 'black');
  4.     $compressedArray = array();
  5.  
  6.     $count = 0;
  7.     while($count < count($originalArray))
  8.        $compressedArray[$originalArray[$count++]] = $count < count($originalArray) ? $originalArray[$count++] : null;
  9.  
  10.    print_r($compressedArray);
Success #stdin #stdout 0.01s 20568KB
comments ()
stdin
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Standard input is empty
stdout
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Array
(
    [red] => blue
    [green] => purple
    [black] => 
)
https://ideone.com/CTGXQZ
language:
PHP (php 7.3.5)
created:
11 years ago
visibility:
public

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