appveyor: support php 8, drop 7.2

Author: kornrunner

appveyor.yml

@@ -9,8 +9,12 @@ cache:
 
 environment:
   matrix:
-    - PHP_VERSION: '7.2.19'
     - PHP_VERSION: '7.3.7'
+      PHP_DOWNLOAD_URL: 'https://windows.php.net/downloads/releases/archives/php-7.3.7-nts-Win32-VC15-x64.zip'
+    - PHP_VERSION: '7.4.3'
+      PHP_DOWNLOAD_URL: 'https://windows.php.net/downloads/releases/archives/php-7.4.3-nts-Win32-vc15-x64.zip'
+    - PHP_VERSION: '8.0.0'
+      PHP_DOWNLOAD_URL: 'https://windows.php.net/downloads/releases/php-8.0.0-nts-Win32-vs16-x64.zip'
 
 matrix:
   fast_finish: true
@@ -23,7 +27,7 @@ install:
   - IF NOT EXIST c:\php mkdir c:\php
   - IF NOT EXIST c:\php\%PHP_VERSION% mkdir c:\php\%PHP_VERSION%
   - cd c:\php\%PHP_VERSION%
-  - IF NOT EXIST php-installed.txt curl --fail --location --silent --show-error -o php.zip https://windows.php.net/downloads/releases/archives/php-%PHP_VERSION%-nts-Win32-VC15-x64.zip
+  - IF NOT EXIST php-installed.txt curl --fail --location --silent --show-error -o php.zip %PHP_DOWNLOAD_URL%
   - IF NOT EXIST php-installed.txt 7z x php.zip -y
   - IF NOT EXIST php-installed.txt del /Q *.zip
   - IF NOT EXIST php-installed.txt copy /Y php.ini-development php.ini