Online PHP editor | output for OHq93

<?php $a = [ 1 => [ [ 'key' => 'fe', 'name' => 'En plantilla a dedicación completa', 'dedication' => self::FULLTIME, 'relationship' => self::EMPLOYEE ], [ 'key' => 'ff', 'name' => 'Freelance a dedicación completa', 'dedication' => self::FULLTIME, 'relationship' => self::FREELANCER ], ], 2 => [ [ 'name' => 'En Plantilla', 'childs' => [ [ 'key' => 'pem', 'name' => 'Mañanas', 'dedication' => self::PARTTIME, 'relationship' => self::EMPLOYEE, 'shiftPreference' => self::MORNING_SHIFT ], [ 'key' => 'pea', 'name' => 'Tardes', 'dedication' => self::PARTTIME, 'relationship' => self::EMPLOYEE, 'shiftPreference' => self::AFTERNOON_SHIFT ], [ 'key' => 'ped', 'name' => 'Indistinto', 'dedication' => self::PARTTIME, 'relationship' => self::EMPLOYEE, 'shiftPreference' => self::DOES_NOT_MATTER ], ], ], [ 'name' => 'Freelance', 'childs' => [ [ 'name' => 'Mañanas', 'childs' => [ [ 'key' => 'pfmm', 'name' => 'Más de 3 horas/día', 'dedication' => self::PARTTIME, 'relationship' => self::FREELANCER, 'shiftPreference' => self::MORNING_SHIFT, 'hoursOfService' => self::MORE_THAN_3H ], [ 'key' => 'pfml', 'name' => 'Menos de 3 horas/día', 'parent' => 8, 'dedication' => self::PARTTIME, 'relationship' => self::FREELANCER, 'shiftPreference' => self::MORNING_SHIFT, 'hoursOfService' => self::LESS_THAN_3H ], ], ], [ 'name' => 'Tardes', 'childs' => [ [ 'key' => 'pfam', 'name' => 'Más de 3 horas/día', 'dedication' => self::PARTTIME, 'relationship' => self::FREELANCER, 'shiftPreference' => self::AFTERNOON_SHIFT, 'hoursOfService' => self::MORE_THAN_3H ], [ 'key' => 'pfal', 'name' => 'Menos de 3 horas/día', 'dedication' => self::PARTTIME, 'relationship' => self::FREELANCER, 'shiftPreference' => self::AFTERNOON_SHIFT, 'hoursOfService' => self::LESS_THAN_3H ], ], ], [ 'name' => 'Indistinto', 'childs' => [ [ 'key' => 'pfdm', 'name' => 'Más de 3 horas/día', 'dedication' => self::PARTTIME, 'relationship' => self::FREELANCER, 'shiftPreference' => self::DOES_NOT_MATTER, 'hoursOfService' => self::MORE_THAN_3H ], [ 'key' => 'pfdl', 'name' => 'Menos de 3 horas/día', 'dedication' => self::PARTTIME, 'relationship' => self::FREELANCER, 'shiftPreference' => self::DOES_NOT_MATTER, 'hoursOfService' => self::LESS_THAN_3H ], ], ], ], ], ], ]; $results = $a[1]; array_walk_recursive($results, function(&$a){ unset($a['dedication'], $a['relationship'], $a['shiftPreference'], $a['hoursOfService']); }); var_dump($results); var_dump($a);