[RESOLVED] printing out from complex array (Zend Cert)

[crmpicco]

Hi all,

I have came across the following question in a Zend Certification PHP mock exam tonight:

Given the following array

<?php
$a = array(
  1 => 'red',
  'green',
  'blue',
  'purple' => array(
    'house' => 'dog',
    'food' => 'meal',
    'here' => 'gone',
    'hello' => array(
      5 => 'goodbye',
      8 => 'something',
      'correct')));
?>

Which of the following print statements will output the string "correct"?

1. print $a['purple][4][3];
2. print $a['purple']['hello'][9];
3. print $a[2][4][3];
4. print $a[2][4][9];
5. print $a[4]['hello'][9];

Many thanks,
Picco

[dk_zero-cool]

It would be print $a['purple']['hello'][9];
You can not use index 2, since $a does not have an index 2, so why would that even be an option? The same goes for the "purple" index. That array does not have an index 4.

[crmpicco]

Can I ask why it becomes $a['purple']['hello'][9]; ?

Is it safe to assume that it takes the next highest index from the last created (8) and doesn't take it from the lowest available (0)?

Merci ;-)

[Mindzai]

Correct, it will start from the next highest index regardless of any gaps.

[crmpicco]

Brilliant - thanks again!

Picco