PHP 함수 distinct()

개요

PHP 함수 distinct()

function distinct($rows, $column_name) {
        $column_values = array();
        foreach($rows as $row) {
                $column_values[$row[$column_name]] = 1;
        }
        return array_keys($column_values);
}

사용 예시

$rows = array(
        array('id'=>1, 'name'=>'한놈', 'department_id'=>1, 'birth_date'=>'1999-01-01'),
        array('id'=>2, 'name'=>'두시기', 'department_id'=>2, 'birth_date'=>'2000-01-01'),
        array('id'=>3, 'name'=>'석삼', 'department_id'=>2, 'birth_date'=>'1999-01-01'),
        array('id'=>4, 'name'=>'너구리', 'department_id'=>3, 'birth_date'=>'2000-01-01'),
);

print_r( distinct($rows, 'department_id') );
# Array
# (
#     [0] => 1
#     [1] => 2
#     [2] => 3
# )
print_r( distinct($rows, 'birth_date') );
# Array
# (
#     [0] => 1999-01-01
#     [1] => 2000-01-01
# )

같이 보기

• PHP 함수 where()
• PHP 함수 group_by()