diff --git a/defaults/main.yml b/defaults/main.yml
index 38e3534..e58dc7f 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -8,6 +8,18 @@ php_enable_webserver: true
 # Start and enable the PHP fpm service.
 php_enable_php_fpm: false
 
+# OpCache settings (useful for PHP >=5.5).
+php_opcache_enabled_in_ini: false
+php_opcache_enable: "1"
+php_opcache_enable_cli: "0"
+php_opcache_memory_consumption: "96"
+php_opcache_interned_strings_buffer: "16"
+php_opcache_max_accelerated_files: "4096"
+php_opcache_max_wasted_percentage: "5"
+php_opcache_validate_timestamps: "1"
+php_opcache_revalidate_freq: "2"
+php_opcache_max_file_size: "0"
+
 # APC settings (useful for PHP <5.5).
 php_enable_apc: true
 php_apc_enabled_in_ini: false
diff --git a/tasks/configure.yml b/tasks/configure.yml
index d3835d8..4f2baee 100644
--- a/tasks/configure.yml
+++ b/tasks/configure.yml
@@ -29,6 +29,17 @@
   when: php_enable_apc
   notify: restart webserver
 
+- name: Place OpCache configuration file in place.
+  template:
+    src: opcache.ini.j2
+    dest: "{{ php_extension_conf_path }}/{{ php_opcache_conf_filename }}"
+    owner: root
+    group: root
+    force: yes
+    mode: 0644
+  when: php_opcache_enable
+  notify: restart webserver
+
 - name: Ensure php-fpm is started and enabled at boot (if configured).
   service:
     name: "{{ php_fpm_daemon }}"
diff --git a/tasks/main.yml b/tasks/main.yml
index 4ae5688..9f3deb9 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -30,5 +30,15 @@
 - include: setup-Debian.yml
   when: ansible_os_family == 'Debian'
 
+- name: Check the installed version of PHP.
+  shell: php -r "echo PHP_VERSION;"
+  register: php_version
+  changed_when: false
+
+- name: Disable opcache if PHP version is < 5.5.
+  set_fact:
+    php_opcache_enable: 0
+  when: "php_version.stdout.split('.')[0] == '5' and php_version.stdout.split('.')[1] < '5'"
+
 # Configure PHP.
 - include: configure.yml
diff --git a/templates/opcache.ini.j2 b/templates/opcache.ini.j2
new file mode 100644
index 0000000..f95a1a5
--- /dev/null
+++ b/templates/opcache.ini.j2
@@ -0,0 +1,13 @@
+{% if php_opcache_enabled_in_ini %}
+zend_extension=opcache.so
+{% endif %}
+
+opcache.enable={{ php_opcache_enable }}
+opcache.enable_cli={{ php_opcache_enable_cli }}
+opcache.memory_consumption={{ php_opcache_memory_consumption }}
+opcache.interned_strings_buffer={{ php_opcache_interned_strings_buffer }}
+opcache.max_accelerated_files={{ php_opcache_max_accelerated_files }}
+opcache.max_wasted_percentage={{ php_opcache_max_wasted_percentage }}
+opcache.validate_timestamps={{ php_opcache_validate_timestamps }}
+opcache.revalidate_freq={{ php_opcache_revalidate_freq }}
+opcache.max_file_size={{ php_opcache_max_file_size }}
diff --git a/vars/Debian.yml b/vars/Debian.yml
index 889e9d4..52d3298 100644
--- a/vars/Debian.yml
+++ b/vars/Debian.yml
@@ -19,4 +19,5 @@ __php_conf_path: "{{ '/etc/php5' if php_webserver_daemon and php_webserver_daemo
 __php_extension_conf_path: "{{ __php_conf_path }}/conf.d"
 
 php_apc_conf_filename: 20-apc.ini
+php_opcache_conf_filename: 05-opcache.ini
 php_fpm_daemon: php5-fpm
diff --git a/vars/RedHat.yml b/vars/RedHat.yml
index af9e5a2..7e3e303 100644
--- a/vars/RedHat.yml
+++ b/vars/RedHat.yml
@@ -21,4 +21,5 @@ __php_conf_path: /etc
 php_extension_conf_path: /etc/php.d
 
 php_apc_conf_filename: apc.ini
+php_opcache_conf_filename: opcache.ini
 php_fpm_daemon: php-fpm