import type { PhpAssoc } from '../_helpers/_phpTypes.ts';
type ColumnRow<TValue> = PhpAssoc<TValue>;
type ColumnInput<TValue> = ColumnRow<TValue>[] | PhpAssoc<ColumnRow<TValue>>;
type ColumnOutput<TValue> = PhpAssoc<TValue | ColumnRow<TValue> | undefined>;
export declare function array_column<TValue>(input: ColumnInput<TValue>, columnKey: string | number | null, indexKey?: string | number | null): ColumnOutput<TValue>;
export {};