fix: merge ini changes with pillar data instead of overwriting

php/apache2/ini.sls

 {%- from tplroot ~ "/ini.jinja" import php_ini %}
 
 {%- set settings = php.ini.defaults %}
-{%- do settings.update(php.apache2.ini.settings) %}
+{%- for key, value in php.apache2.ini.settings.items() %}
+  {%- if settings[key] is defined %}
+    {%- do settings[key].update(value) %}
+  {%- else %}
+    {%- do settings.update({key: value}) %}
+  {%- endif %}
+{%- endfor %}
+
+{%- set pillar_php_version = salt['pillar.get']('php:version', '7.0') %}
+{%- if pillar_php_version is iterable and pillar_php_version is not string %}
+  {%- for version in pillar_php_version %}
+    {%- set first_version = pillar_php_version[0]|string %}
+    {%- set ini = php.lookup.apache2.ini|replace(first_version, version) %}
+php_apache2_ini_{{ version }}:
+  {{ php_ini(ini,
+             'php_apache2_ini_' ~ version,
+             php.apache2.ini.opts,
+             settings
+  ) }}
+  {%- endfor %}
+{%- else %}
 
 php_apache2_ini:
   {{ php_ini(php.lookup.apache2.ini,
              php.apache2.ini.opts,
              settings
   ) }}
+{%- endif %}