Phan\Language\Context::getNamespace PHP Method

    public function getNamespace() : string
    {
        return $this->namespace;
    }

 /**
  * @param string $function_name
  * The name of the function we'd like to look up
  *
  * @param bool $is_function_declaration
  * This must be set to true if we're getting a function
  * that is being declared and false if we're getting a
  * function being called.
  *
  * @return FunctionInterface
  * A method with the given name in the given context
  *
  * @throws IssueException
  * An exception is thrown if we can't find the given
  * function
  */
 public function getFunction(string $function_name, bool $is_function_declaration = false) : FunctionInterface
 {
     if ($is_function_declaration) {
         $function_fqsen = FullyQualifiedFunctionName::make($this->context->getNamespace(), $function_name);
     } else {
         $function_fqsen = FullyQualifiedFunctionName::make($this->context->getNamespace(), $function_name);
         // If it doesn't exist in the local namespace, try it
         // in the global namespace
         if (!$this->code_base->hasFunctionWithFQSEN($function_fqsen)) {
             $function_fqsen = FullyQualifiedFunctionName::fromStringInContext($function_name, $this->context);
         }
     }
     // Make sure the method we're calling actually exists
     if (!$this->code_base->hasFunctionWithFQSEN($function_fqsen)) {
         throw new IssueException(Issue::fromType(Issue::UndeclaredFunction)($this->context->getFile(), $this->node->lineno ?? 0, ["{$function_fqsen}()"]));
     }
     return $this->code_base->getFunctionByFQSEN($function_fqsen);
 }