Multi Level Array Problem

[receiver19]

hi all,

 

For example I have array like below:

 

$temp = array(array('north america', 'us', 'california'), array('north america', 'us', 'hawaii'), array('north america', 'canada', 'vancouver'), array('asia', 'singapore', 'orchard');

 

I need to filter it out. So i hope the result could be:

 

array

  'north america' =>

    array

      'us' =>

          array 0 =>string 'california'

                  1 =>string 'hawai'

  'asia' =>

    array

      'singapore'

            array 0 => string 'orchard'

 

 

 

Anyone could help me to sorf out the logic? I just cannot solve this question.

 

Thanks a lot!

[cags]

Are you saying you wish your array to look like your ouput example, or are you saying you wish to programmatically convert example code a.) into example output b.). If the former your array should be...

 

$places = array('north_america'=>array('us'=>array('california', 'hawai')),'asia'=>array('singapore'=>'orchard'));

 

...if the latter then let us know.

[receiver19]

The latter one.

[cags]

Will the subarrays always be in the format "continent, regent, state"?

[sasa]

try

<?php
$temp = array(array('north america', 'us', 'california'), array('north america', 'us', 'hawaii'), array('north america', 'canada', 'vancouver'), array('asia', 'singapore', 'orchard'));
$out = array();
foreach ($temp as $t) $out[$t[0]][$t[1]][] = $t[2];
print_r($out);
?>