src/Tokenizer/Token.php
public static function getKeywords()
    {
        static $keywords = null;

        if (null === $keywords) {
            $keywords = self::getTokenKindsForNames(['T_ABSTRACT', 'T_ARRAY', 'T_AS', 'T_BREAK', 'T_CALLABLE', 'T_CASE',
                'T_CATCH', 'T_CLASS', 'T_CLONE', 'T_CONST', 'T_CONTINUE', 'T_DECLARE', 'T_DEFAULT', 'T_DO',
                'T_ECHO', 'T_ELSE', 'T_ELSEIF', 'T_EMPTY', 'T_ENDDECLARE', 'T_ENDFOR', 'T_ENDFOREACH',
                'T_ENDIF', 'T_ENDSWITCH', 'T_ENDWHILE', 'T_EVAL', 'T_EXIT', 'T_EXTENDS', 'T_FINAL',
                'T_FINALLY', 'T_FOR', 'T_FOREACH', 'T_FUNCTION', 'T_GLOBAL', 'T_GOTO', 'T_HALT_COMPILER',
                'T_IF', 'T_IMPLEMENTS', 'T_INCLUDE', 'T_INCLUDE_ONCE', 'T_INSTANCEOF', 'T_INSTEADOF',
                'T_INTERFACE', 'T_ISSET', 'T_LIST', 'T_LOGICAL_AND', 'T_LOGICAL_OR', 'T_LOGICAL_XOR',
                'T_NAMESPACE', 'T_NEW', 'T_PRINT', 'T_PRIVATE', 'T_PROTECTED', 'T_PUBLIC', 'T_REQUIRE',
                'T_REQUIRE_ONCE', 'T_RETURN', 'T_STATIC', 'T_SWITCH', 'T_THROW', 'T_TRAIT', 'T_TRY',
                'T_UNSET', 'T_USE', 'T_VAR', 'T_WHILE', 'T_YIELD', 'T_YIELD_FROM',
            ]) + [
                CT::T_ARRAY_TYPEHINT => CT::T_ARRAY_TYPEHINT,
                CT::T_CLASS_CONSTANT => CT::T_CLASS_CONSTANT,
                CT::T_CONST_IMPORT => CT::T_CONST_IMPORT,
                CT::T_FUNCTION_IMPORT => CT::T_FUNCTION_IMPORT,
                CT::T_NAMESPACE_OPERATOR => CT::T_NAMESPACE_OPERATOR,
                CT::T_USE_TRAIT => CT::T_USE_TRAIT,
                CT::T_USE_LAMBDA => CT::T_USE_LAMBDA,
            ];
        }

        return $keywords;
    }
public static function getKeywords()
    {
        static $keywords = null;

        if (null === $keywords) {
            $keywords = self::getTokenKindsForNames(['T_ABSTRACT', 'T_ARRAY', 'T_AS', 'T_BREAK', 'T_CALLABLE', 'T_CASE',
                'T_CATCH', 'T_CLASS', 'T_CLONE', 'T_CONST', 'T_CONTINUE', 'T_DECLARE', 'T_DEFAULT', 'T_DO',
                'T_ECHO', 'T_ELSE', 'T_ELSEIF', 'T_EMPTY', 'T_ENDDECLARE', 'T_ENDFOR', 'T_ENDFOREACH',
                'T_ENDIF', 'T_ENDSWITCH', 'T_ENDWHILE', 'T_EVAL', 'T_EXIT', 'T_EXTENDS', 'T_FINAL',
                'T_FINALLY', 'T_FOR', 'T_FOREACH', 'T_FUNCTION', 'T_GLOBAL', 'T_GOTO', 'T_HALT_COMPILER',
                'T_IF', 'T_IMPLEMENTS', 'T_INCLUDE', 'T_INCLUDE_ONCE', 'T_INSTANCEOF', 'T_INSTEADOF',
                'T_INTERFACE', 'T_ISSET', 'T_LIST', 'T_LOGICAL_AND', 'T_LOGICAL_OR', 'T_LOGICAL_XOR',
                'T_NAMESPACE', 'T_NEW', 'T_PRINT', 'T_PRIVATE', 'T_PROTECTED', 'T_PUBLIC', 'T_REQUIRE',
                'T_REQUIRE_ONCE', 'T_RETURN', 'T_STATIC', 'T_SWITCH', 'T_THROW', 'T_TRAIT', 'T_TRY',
                'T_UNSET', 'T_USE', 'T_VAR', 'T_WHILE', 'T_YIELD', 'T_YIELD_FROM',
            ]) + [
                CT::T_ARRAY_TYPEHINT => CT::T_ARRAY_TYPEHINT,
                CT::T_CLASS_CONSTANT => CT::T_CLASS_CONSTANT,
                CT::T_CONST_IMPORT => CT::T_CONST_IMPORT,
                CT::T_FUNCTION_IMPORT => CT::T_FUNCTION_IMPORT,
                CT::T_NAMESPACE_OPERATOR => CT::T_NAMESPACE_OPERATOR,
                CT::T_USE_TRAIT => CT::T_USE_TRAIT,
                CT::T_USE_LAMBDA => CT::T_USE_LAMBDA,
            ];
        }

        return $keywords;
    }
Generate array containing all keywords that exists in PHP version in use.

@return array<int, int>