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up vote 3 down vote favorite

I've an array as follows.

array(
    0 => array(
        'parent' => 'Bigboss',
        'middle' => 'Technicians',
        'child' => 'Players'
    ),
    1 => array(
        'parent' => 'Company',
        'middle' => 'Manager',
        'child' => 'Employees'
    ),
    2 => array(
        'parent' => 'Bigboss',
        'middle' => 'Manager',
        'child' => 'Workers'
    ),
    3 => array(
        'parent' => 'Company',
        'middle' => 'Techinical Lead',
        'child' => 'Employees'
    ),
    4 => array(
        'parent' => 'Bigboss',
        'middle' => 'Workers',
        'child' => 'Employees'
    )
);

I want this array in heirarchy way like

parent
=> middle
    => child
parent
=> middle
    => child

Exactly like as follows.

array(
    'Biggboss' => array(
        'Technicians' => array(
            0 => 'Players'
        ),
        'Manager' => array(
            0 => 'Workers'
        ),
        'Workers' => array(
            0 => 'Employees'
        )
    ),
    'Company' => array(
        'Manager' => array(
            0 => 'Employees'
        ),
        'Techinical Lead' => array(
            0 => 'Employees'
        )
    )
);

if anyone could solve it would be more appreciated.

share|improve this question
    
@hey sanganabasu, ask Mass to fix this –  Sharanabasu Angadi Jun 11 '13 at 16:10

1 Answer 1

up vote 1 down vote accepted

I believe this works...

$input = array(
    0 => array(
        'parent' => 'Bigboss',
        'middle' => 'Technicians',
        'child' => 'Players'
    ),
    1 => array(
        'parent' => 'Company',
        'middle' => 'Manager',
        'child' => 'Employees'
    ),
    2 => array(
        'parent' => 'Bigboss',
        'middle' => 'Manager',
        'child' => 'Workers'
    ),
    3 => array(
        'parent' => 'Company',
        'middle' => 'Techinical Lead',
        'child' => 'Employees'
    ),
    4 => array(
        'parent' => 'Bigboss',
        'middle' => 'Workers',
        'child' => 'Employees'
    )
);

$output = array();

foreach($input as $key => $value){
    if(!isset($output[$value['parent']])){ 
        $output[$value['parent']] = array();
    }
    $output[$value['parent']][$value['middle']] = array($value['child']);
}

print_r($output);

If you want to allow multiple values in the last dimension then change: 

$output[$value['parent']][$value['middle']] = array($value['child']);

to 

$output[$value['parent']][$value['middle']][] = $value['child'];
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