php 展平多维数组

Posted 2021-05-05

$array = [
	'name' => [
		'Name is required',
		'Name cannot contains numbers',
		'Name structure' => [
			'More than 3 letters',
			'No polish letters'
		]
	],
	'dob' => [
		'Name is required'
	],
	'password' => [
		'Password is required',
		'Password cannot contains numbers'
	],
	'Something else'
];

function flatten_array(array $items, $flattened = []) {
	foreach ($items as $item) {
		if(is_array($item)) {
			$flattened = flatten_array($item, $flattened);
			continue;
		}
		$flattened[] = $item;
	}
	return $flattened;
}