nikic/PHP-Parser · error · LogicException

Expected at least two expressions

Error message

Expected at least two expressions

What it means

Error "Expected at least two expressions" thrown in nikic/PHP-Parser.

Source

Thrown at lib/PhpParser/BuilderFactory.php:351

     * @param string|Name|Expr $class Class name
     * @param string|Identifier|Expr $name Constant name
     */
    public function classConstFetch($class, $name): Expr\ClassConstFetch {
        return new Expr\ClassConstFetch(
            BuilderHelpers::normalizeNameOrExpr($class),
            BuilderHelpers::normalizeIdentifierOrExpr($name)
        );
    }

    /**
     * Creates nested Concat nodes from a list of expressions.
     *
     * @param Expr|string ...$exprs Expressions or literal strings
     */
    public function concat(...$exprs): Concat {
        $numExprs = count($exprs);
        if ($numExprs < 2) {
            throw new \LogicException('Expected at least two expressions');
        }

        $lastConcat = $this->normalizeStringExpr($exprs[0]);
        for ($i = 1; $i < $numExprs; $i++) {
            $lastConcat = new Concat($lastConcat, $this->normalizeStringExpr($exprs[$i]));
        }
        return $lastConcat;
    }

    /**
     * @param string|Expr $expr
     */
    private function normalizeStringExpr($expr): Expr {
        if ($expr instanceof Expr) {
            return $expr;
        }

        if (\is_string($expr)) {

View on GitHub (pinned to fbd47f7ebc)

When it happens

Trigger: Thrown at lib/PhpParser/BuilderFactory.php:351 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of nikic/PHP-Parser@fbd47f7ebc (2026-08-17). Data as JSON: /api/errors/1b2638aa8b5a24fc. Report an issue: GitHub.