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<?php $main_category_currency = 1; $children = array( array('id_category'=>10), array('id_category'=>15), ); function map($child) { return $child['id_category']; } $categories = array_unique(array_merge( array($main_category_currency), array_map("map",$children) ), SORT_NUMERIC); var_dump($categories);
Output for 5.2.9 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
array(3) { [0]=> int(1) [1]=> int(10) [2]=> int(15) }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.8
Warning: Wrong parameter count for array_unique() in /in/Ct3Id on line 14 NULL
preferences:
356.95 ms | 402 KiB | 460 Q