yiisoft/yii2 · error · yii\base\InvalidConfigException

{} in $from is not supported.

Error message

{} in $from is not supported.

What it means

Error "{} in $from is not supported." thrown in yiisoft/yii2.

Source

Thrown at framework/db/Query.php:530

     * Both aliases and names are enclosed into {{ and }}.
     * @return string[] table names indexed by aliases
     * @throws \yii\base\InvalidConfigException
     * @since 2.0.12
     */
    public function getTablesUsedInFrom()
    {
        if (empty($this->from)) {
            return [];
        }

        if (is_array($this->from)) {
            $tableNames = $this->from;
        } elseif (is_string($this->from)) {
            $tableNames = preg_split('/\s*,\s*/', trim($this->from), -1, PREG_SPLIT_NO_EMPTY);
        } elseif ($this->from instanceof Expression) {
            $tableNames = [$this->from];
        } else {
            throw new InvalidConfigException(gettype($this->from) . ' in $from is not supported.');
        }

        return $this->cleanUpTableNames($tableNames);
    }

    /**
     * Clean up table names and aliases
     * Both aliases and names are enclosed into {{ and }}.
     * @param array $tableNames non-empty array
     * @return string[] table names indexed by aliases
     * @since 2.0.14
     */
    protected function cleanUpTableNames($tableNames)
    {
        $cleanedUpTableNames = [];
        foreach ($tableNames as $alias => $tableName) {
            if (is_string($tableName) && !is_string($alias)) {
                $pattern = <<<PATTERN

View on GitHub (pinned to 66f00d18a2)

When it happens

Trigger: Thrown at framework/db/Query.php:530 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of yiisoft/yii2@66f00d18a2 (2026-08-17). Data as JSON: /api/errors/beade09b78b6e504. Report an issue: GitHub.