Parameter &$mappings by-ref type of method libphonenumber\buildtools\GeneratePhonePrefixData::makeDataFallbackToEnglish() expects array<string, string>, array<int|string, string> given.

Parameter #2 $mappings of method libphonenumber\buildtools\GeneratePhonePrefixData::hasOverlappingPrefix() expects array<string, string>, array<int|string, string> given.

Method libphonenumber\buildtools\GeneratePhonePrefixData::splitMap() should return array<int|string, array<string, string>> but returns array<string, array<int|string, string>>.

PHPDoc tag @param has invalid value (int[]): Unexpected token "\n ", expected variable at offset 94 on line 3

Property libphonenumber\AlternateFormatsCountryCodeSet::$alternateFormatsCountryCodeSet type has no value type specified in iterable type array.

PHPDoc tag @param has invalid value (array<int,string[]>): Unexpected token "\n ", expected variable at offset 352 on line 6

Property libphonenumber\CountryCodeToRegionCodeMap::$countryCodeToRegionCodeMap type has no value type specified in iterable type array.

PHPDoc tag @param has invalid value (array<int,string[]>): Unexpected token "\n ", expected variable at offset 352 on line 6

Property libphonenumber\CountryCodeToRegionCodeMapForTesting::$countryCodeToRegionCodeMapForTesting type has no value type specified in iterable type array.