Force install PHP on AppVeyor

Author: WyriHaximus

appveyor.yml

@@ -33,7 +33,7 @@ init:
 ## Install PHP and composer, and run the appropriate composer command
 install:
     - IF EXIST c:\tools\php (SET PHP=0)
-    - ps: appveyor-retry cinst -y php --ignore-checksums --version ((choco search php --exact --all-versions -r | select-string -pattern $Env:php_ver_target | Select-Object -first 1) -replace '[php|]','')
+    - ps: appveyor-retry cinst --force -y php --ignore-checksums --version ((choco search php --exact --all-versions -r | select-string -pattern $Env:php_ver_target | Select-Object -first 1) -replace '[php|]','')
     - cd c:\tools\php
     - IF %PHP%==1 copy php.ini-production php.ini /Y
     - IF %PHP%==1 echo date.timezone="UTC" >> php.ini