Description:
------------
On August 28 around 09:30, I migrated from PHP5.5.16 to PHP5.6.0.

At first access I had a 'Bad host request' from my site after rebooting the httpd.exe. At that time I couldn't find why, so I rebooted Windows7 itself and I could run the server and see my site.

    Windows7HP+SP1(x86)
    httpd-2.4.10-win32-VC11.zip from Apache Lounge
    php-5.6.0-Win32-VC11-x86.zip from PHP.net
    mariadb-10.0.13-win32.zip from MariaDB.ORG

But after a few hours later, I had a 'Bad host request' again. Then I found a lot of '-- Restarting's on the apache error log. Though I couldn't find any other information on it, I saw a lot of errors about php_opcache.dll on the OS event log, like this:

- EventData 

   httpd.exe 
   2.4.10.0 
   53c79afa 
   php_opcache.dll 
   5.6.0.0 
   53fe2bac 
   c0000005 
   00018df2 
   3b8 
   01cfc38026be3577 
   D:\Apache24\bin\httpd.exe 
   D:\PHP\ext\php_opcache.dll 
   921bb83b-2f73-11e4-b49a-001185bbaf62 

As I couldn't find why, I stop using OPcache feature now.

My php.ini based on the php.ini-production included php-5.6.0-Win32-VC11-x86.zip and I changed the fallowing lines:
--------
output_buffering = Off
disable_functions ="shell_exec, suexec, passthru, phpinfo"
expose_php = Off
extension_dir = "D:\PHP\ext\"
allow_url_fopen = Off
extension=php_curl.dll
extension=php_gd2.dll
extension=php_mbstring.dll
extension=php_mysqli.dll
extension=php_openssl.dll
zend_extension= "D:\PHP\ext\php_opcache.dll"
date.timezone ="xxxx/xxxx"
sendmail_from = My email address
mysql.allow_persistent = Off
opcache.enable=1
opcache.memory_consumption=128
opcache.interned_strings_buffer=8
opcache.max_accelerated_files=4000
opcache.revalidate_freq=60
opcache.fast_shutdown=1
--------
Does zend_extension require php_mysql.dll? In PHP5.5.16 INI file, I loaded php_mysql.dll.

I cannot find why this occurred still now. Any suggestions?