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PHP PHP Basics (Retired) PHP Datatypes PHP Datatypes Challenge

Posted by Brad Price
Brad Price
18,570 Points

are arrays not relative to 0?

<?php

  $integer_one  = 1;
  $integer_two  = 2;
  $golden       = 1.618;
  $bool         = true;
  $colors       = array('red', 'blue', 'green');

  echo $colors[1];

?>

index.php 
<?php

      $integer_one  = 1;
      $integer_two  = 2;
      $golden       = 1.618;
      $bool         = true;
      $colors       = array('red', 'blue', 'green');

      echo $colors[1];



?>

1 Answer

Kevin Korte
Kevin Korte
28,149 Points
Kevin Korte
Kevin Korte
28,149 Points

Arrays are zero based, echo $color[1] would return blue.

Luke Pettway
Luke Pettway
16,593 Points

Here's a really fun technical explanation of what Kevin is saying if you are interested:

Why numbering should start at zero http://www.cs.utexas.edu/users/EWD/transcriptions/EWD08xx/EWD831.html