*/ public array $concatExpressions = []; public function getSql(SqlWalker $sqlWalker): string { $platform = $sqlWalker->getConnection()->getDatabasePlatform(); $args = []; foreach ($this->concatExpressions as $expression) { $args[] = $sqlWalker->walkStringPrimary($expression); } return $platform->getConcatExpression(...$args); } public function parse(Parser $parser): void { $parser->match(TokenType::T_IDENTIFIER); $parser->match(TokenType::T_OPEN_PARENTHESIS); $this->firstStringPrimary = $parser->StringPrimary(); $this->concatExpressions[] = $this->firstStringPrimary; $parser->match(TokenType::T_COMMA); $this->secondStringPrimary = $parser->StringPrimary(); $this->concatExpressions[] = $this->secondStringPrimary; while ($parser->getLexer()->isNextToken(TokenType::T_COMMA)) { $parser->match(TokenType::T_COMMA); $this->concatExpressions[] = $parser->StringPrimary(); } $parser->match(TokenType::T_CLOSE_PARENTHESIS); } }