PhpCsFixer\Fixer\Alias\NoMixedEchoPrintFixer::resolveConfig PHP Method

    private function resolveConfig(array $configuration)
    {
        if ('echo' === $configuration['use']) {
            $this->candidateTokenType = T_PRINT;
            $this->callBack = 'fixPrintToEcho';
        } else {
            $this->candidateTokenType = T_ECHO;
            $this->callBack = 'fixEchoToPrint';
        }
    }