// set some options
$opts = array(
// storage type, follow types supported
// PHPMORPHY_STORAGE_FILE - use file operations(fread, fseek) for dictionary access, this is very slow...
// PHPMORPHY_STORAGE_SHM - load dictionary in shared memory(using shmop php extension), this is preferred mode
// PHPMORPHY_STORAGE_MEM - load dict to memory each time when phpMorphy intialized, this useful when shmop ext. not activated. Speed same as for PHPMORPHY_STORAGE_SHM type
'storage' => PHPMORPHY_STORAGE_MEM,
// Extend graminfo for getAllFormsWithGramInfo method call
'with_gramtab' => false,
// Enable prediction by suffix
'predict_by_suffix' => true,
// Enable prediction by prefix
'predict_by_db' => true
);

$dir = 'phpmorphy/dicts';

// Create descriptor for dictionary located in $dir directory with russian language
$dict_bundle = new phpMorphy_FilesBundle($dir, 'rus');

// Create phpMorphy instance
$morphy = new phpMorphy($dict_bundle, $opts);

// All words in dictionary in UPPER CASE, so don`t forget set proper locale
// Supported dicts and locales:
// *------------------------------*
// | Dict. language | Locale name |
// |------------------------------|
// | Russian | cp1251 |
// |------------------------------|
// | English | cp1250 |
// |------------------------------|
// | German | cp1252 |
// *------------------------------*
// $codepage = $morphy->getCodepage();
// setlocale(LC_CTYPE, array('ru_RU.CP1251', 'Russian_Russia.1251'));

$words = preg_split('/ /', $text, -1, PREG_SPLIT_NO_EMPTY);

foreach ( $words as $v )
if ( strlen($v) > 3 )
{
$result = $morphy->getAllForms(strtoupper($v));
$full.= implode(" ", $result);
}

return $full;
}