getNextVariableName example

if ($hasSelfRef && !$forConstructor && !$forConstructor = !$this->circularReferences[$id][$targetId]) {
            $code = $this->addInlineService($id, $definition, $definition);
        } else {
            $code = '';
        }

        if (isset($this->referenceVariables[$targetId]) || (2 > $callCount && (!$hasSelfRef || !$forConstructor))) {
            return $code;
        }

        $name = $this->getNextVariableName();
        $this->referenceVariables[$targetId] = new Variable($name);

        $reference = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE >= $behavior ? new Reference($targetId, $behavior) : null;
        $code .= sprintf(" \$%s = %s;\n", $name, $this->getServiceCall($targetId, $reference));

        if (!$hasSelfRef || !$forConstructor) {
            return $code;
        }

        $code .= sprintf(<<<'EOTXT' if (isset($container->%s[%s])) { return $container->%1$s[%2$s]; }

if ($hasSelfRef && !$forConstructor && !$forConstructor = !$this->circularReferences[$id][$targetId]) {
            $code = $this->addInlineService($id, $definition, $definition);
        } else {
            $code = '';
        }

        if (isset($this->referenceVariables[$targetId]) || (2 > $callCount && (!$hasSelfRef || !$forConstructor))) {
            return $code;
        }

        $name = $this->getNextVariableName();
        $this->referenceVariables[$targetId] = new Variable($name);

        $reference = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE >= $behavior ? new Reference($targetId, $behavior) : null;
        $code .= sprintf(" \$%s = %s;\n", $name, $this->getServiceCall($targetId, $reference));

        if (!$hasSelfRef || !$forConstructor) {
            return $code;
        }

        $code .= sprintf(<<<'EOTXT' if (isset($container->%s[%s])) { return $container->%1$s[%2$s]; }

if ($hasSelfRef && !$forConstructor && !$forConstructor = !$this->circularReferences[$id][$targetId]) {
            $code = $this->addInlineService($id, $definition, $definition);
        } else {
            $code = '';
        }

        if (isset($this->referenceVariables[$targetId]) || (2 > $callCount && (!$hasSelfRef || !$forConstructor))) {
            return $code;
        }

        $name = $this->getNextVariableName();
        $this->referenceVariables[$targetId] = new Variable($name);

        $reference = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE >= $behavior ? new Reference($targetId, $behavior) : null;
        $code .= sprintf(" \$%s = %s;\n", $name, $this->getServiceCall($targetId, $reference));

        if (!$hasSelfRef || !$forConstructor) {
            return $code;
        }

        $code .= sprintf(<<<'EOTXT' if (isset($this->%s[%s])) { return $this->%1$s[%2$s]; }