title: Enable opcache for php in wamp
body: <p>I try to enable opcache on wamp but it doesnt work. I changed the settings like this : </p>
  
  <pre><code>[opcache]
  zend_extension=C:/wamp/bin/php/php5.5.12/ext/php_opcache.dll
  opcache.enable=1
  opcache.enable_cli=1
  opcache.memory_consumption=128
  opcache.interned_strings_buffer=8
  opcache.max_accelerated_files=4000
  </code></pre>
  
  <p>I always have the red exclamation mark in the extension of php for opcache
  whats wrong? some help pls</p>
  
  <p>And it is in the the phpinfo()</p>
  
  <pre><code>Zend OPcache
  Opcode Caching  Up and Running
  Optimization    Enabled
  Startup OK
  Shared memory model win32
  Cache hits  0
  Cache misses    1
  Used memory 483608
  Free memory 133734120
  Wasted memory   0
  Cached scripts  1
  Cached keys 2
  Max keys    7963
  OOM restarts    0 
  Hash keys restarts  0
  Manual restarts 0
  
  
  opcache.blacklist_filename  no value    no value
  opcache.consistency_checks  0   0
  opcache.dups_fix    Off Off
  opcache.enable  On  On
  opcache.enable_cli  Off Off
  opcache.enable_file_override    Off Off
  opcache.error_log   no value    no value
  opcache.fast_shutdown   1   1
  opcache.file_update_protection  2   2
  opcache.force_restart_timeout   180 180
  opcache.inherited_hack  On  On
  opcache.interned_strings_buffer 8   8
  opcache.load_comments   1   1
  opcache.log_verbosity_level 1   1
  opcache.max_accelerated_files   4000    4000
  opcache.max_file_size   0   0
   opcache.max_wasted_percentage  5   5
  opcache.memory_consumption  128 128
  opcache.mmap_base   no value    no value
  opcache.optimization_level  0xFFFFFFFF  0xFFFFFFFF
  opcache.preferred_memory_model  no value    no value
  opcache.protect_memory  0   0
  opcache.restrict_api    no value    no value
  opcache.revalidate_freq 60  60
  opcache.revalidate_path Off Off
  opcache.save_comments   1   1
  opcache.use_cwd On  On
  opcache.validate_timestamps On  On
  </code></pre>
  
  <p>I found this If you want to know if it works : <a href="https://github.com/rlerdorf/opcache-status/blob/master/opcache.php">https://github.com/rlerdorf/opcache-status/blob/master/opcache.php</a></p>