Arrays::merge()

\nn\t3::Arrays()->merge();

Merge an associative array recursively with another array.

    $addKeys => if false, only keys that also exist in $arr1 are overwritten

    $includeEmptyValues => if true, empty values are also included in $arr1 

    $enableUnsetFeature => if true, __UNSET can be used as a value in $arr2 to delete a value in $arr1 

$mergedArray = \nn\t3::Arrays( $arr1 )->merge( $arr2, $addKeys, $includeEmptyValues, $enableUnsetFeature );
$mergedArray = \nn\t3::Arrays( $arr1 )->merge( $arr2 );
$mergedArray = \nn\t3::Arrays()->merge( $arr1, $arr2 );

| @return array

Source Code public function merge() {
	$defaultArgs = [
		'arr1' 		=> [],
		'arr2' 		=> [],
		'addKeys' 	=> true,
		'includeEmptyValues' => false,
		'enableUnsetFeature' => true,
	];
	$args = func_get_args();
	if ($this->initialArgument !== null && !is_array($args[1] ?? '')) {
		array_unshift($args, $this->initialArgument );
	}
	foreach ($defaultArgs as $k=>$v) {
		$val = array_shift( $args );
		if ($val == null) $val = $v;
		${$k} = $val;
	}
	ArrayUtility::mergeRecursiveWithOverrule($arr1, $arr2, $addKeys, $includeEmptyValues, $enableUnsetFeature );
	return $arr1;
}        
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