Symfony accidentally crashing - DebugClassLoader.php

Question

I have a site based on the symfony framework, but when developing the environment, I have occasional crashes with the exception: (with bad characters)

Warning: class_implements (): Class does not exist and cannot be loaded

or

Warning: class_implements (): Class H d does not exist and cannot be loaded

or

ContextErrorException in line DebugClassLoader.php 203:
Warning: class_implements (): Class multipart / form-data does not exist and cannot be loaded

(php doesn't use symfony forms, and the request is GET)

or

OutOfMemoryException in DebugClassLoader.php line 203:
Error: allowed memory size of 134217728 bytes has been exhausted (tried to allocate 1141972672 bytes)

( 128 , 6 )

URL- ( ), .

.

Windows 7 XAMPP/apache.

apache F5, , .

, .

?

EDIT:

---

OPCache ...

Symfony:

php bin/symfony_requirements CLI

> PHP is using the following php.ini file:
  C:\xampp7.0.9\php\php.ini

> Checking Symfony requirements:
  ...........................WW.......


 [OK]
 Your system is ready to run Symfony projects


Optional recommendations to improve your setup
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

 * intl extension should be available
   > Install and enable the intl extension (used for validators).

 * a PHP accelerator should be installed
   > Install and/or enable a PHP accelerator (highly recommended).


Note  The command console could use a different php.ini file
~~~~  than the one used with your web server. To be on the
      safe side, please check the requirements from your web
      server using the web/config.PHP .

Answer 1

"Warning: class_implements(): "

realpath_cache_size php.ini, apache , .