The type of the return value of the function lang() in Common.php / line 433 ff. is set to "string". The documentation (chapter Localization / Nested Arrays) shows that lang() also can return an array. But if you try this, you will get a TypeError ("Return value of lang() must be of the type string, array returned").
The type of the return value of the function lang() in Common.php / line 433 ff. is set to "string". The documentation (chapter Localization / Nested Arrays) shows that lang() also can return an array. But if you try this, you will get a TypeError ("Return value of lang() must be of the type string, array returned").