oop - Merging two objects and override empty attributes (PHP) -

i have 2 objects , way our finder function works (i have call twice... 1 config key, value i.e. non multilanguage stuff. , second call multilanguage stuff) makes them this:

[config] => array     (         [cfg] => config_model object             (                 [id] => 2                 [key] => system.default.main_color                 [value] => #ff7c11                 [deleted] => 0             )          [help] => config_model object             (                 [id] =>                  [key] =>                  [value] =>                  [id_config] => 2                 [name] => hauptfarbe                 [help] => die hauptfarbe ihres cis. der adminbereich erscheint in dieser farbe.                 [id_lang] => 1             )      ) 

i want compine these 2 objects one. code, gets stuff looks this:

public static function get($key) {   $config['cfg'] = self::find(array('key' => $key), true);   $config['help'] = self::findintable(array(     'id_lang' => language_model::getdefaultlanguage(),      'id_config' => $config['cfg']->getid()   ), self::dbtranslationtable, true);   return $config;   // return (object) array_merge((array) $config['cfg'], (array) $config['help']); } 

you can tell commented return command, tried using array_merge(). problem is, empty attributes [help] override attributes [cfg], empty again:

[config] => stdclass object     (         [id] =>          [key] =>          [value] =>          [deleted] => 0         [id_config] => 2         [name] => hauptfarbe         [help] => die hauptfarbe ihres cis. der adminbereich erscheint in dieser farbe.         [id_lang] => 1     ) 

whereas should rather this:

[config] => stdclass object     (         [id] => 2         [key] => system.defalult.main_color         [value] => #ff7c11         [deleted] => 0         [id_config] => 2         [name] => hauptfarbe         [help] => die hauptfarbe ihres cis. der adminbereich erscheint in dieser farbe.         [id_lang] => 1     ) 

if need more information, please let me know.

you need filter out empty values second array, , merge what's left onto first array.

the simplest solution be:

$config['help'] = array_filter((array) $config['help']); return (object) array_merge((array) $config['cfg'], (array) $config['help']); 

this uses default behaviour of array_filter(), checks whether values evaluate false. remove empty strings, null values, or number zero.

a safer solution check empty strings, this:

$config['help'] = array_filter((array) $config['help'], function($val) {     return (string) $val != ''; }); return (object) array_merge((array) $config['cfg'], (array) $config['help']);