/**
* Tests Arr::isAssoc()
*
* @test
* @dataProvider providerIsAssoc
* @param array $array Array to check
* @param boolean $expected Is $array assoc
*/
public function testIsAssoc(array $array, $expected)
{
$this->assertSame($expected, Arr::isAssoc($array));
}
/**
* Convert a multi-dimensional array into a single-dimensional array.
*
* $array = array('set' => array('one' => 'something'), 'two' => 'other');
*
* // Flatten the array
* $array = Arr::flatten($array);
*
* // The array will now be
* array('one' => 'something', 'two' => 'other');
*
* [!!] The keys of array values will be discarded.
*
* @param array $array array to flatten
* @return array
* @since 3.0.6
*/
public static function flatten($array)
{
$is_assoc = Arr::isAssoc($array);
$flat = [];
foreach ($array as $key => $value) {
if (is_array($value)) {
$flat = array_merge($flat, Arr::flatten($value));
} else {
if ($is_assoc) {
$flat[$key] = $value;
} else {
$flat[] = $value;
}
}
}
return $flat;
}
