array_flatten_into_delimited_list

The array_flatten_into_delimited_list() function flattens a multi-dimensional array and then converts it into a delimited list. This function uses array_flatten.

Syntax

array array_flatten_into_delimited_list(
   array $subjectArray, 
   string $delimiter = ','
);

where,

$subjectArray is the array to work on

$delimiter is the delimiter to use for the returned list. Default is ',', for a comma-separated list.

Examples

For this given subject array:

$user = [
	'user_id'   => 504,
	'name'      => 'Bob Jones',
	'social'    => [
		'twitter' => '@bobjones',
	],
];

The default of ',' gives you:

$user = array_flatten_into_delimited_list($user);

// $user = '504,Bob Jones,@bobjones';

Or when you specify a delimiter, you would get:

$user = array_flatten_into_delimited_list($user, ' | ');

// $user = '504 | Bob Jones | @bobjones';