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<?php $main_category_currency = 1; $children = array( array('id_category'=>10), array('id_category'=>15), ); $categories = array_unique(array_merge( array($main_category_currency), array_map( function($child) { return $child['id_category']; }, $children ) ), SORT_NUMERIC); var_dump($categories);
Output for 5.3.0 - 7.1.0
array(3) { [0]=> int(1) [1]=> int(10) [2]=> int(15) }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/mqKke on line 10
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/mqKke on line 10
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/mqKke on line 10
Process exited with code 255.