Update .appveyor.yml

.appveyor.yml

@@ -123,6 +123,30 @@ environment:
                   PHP_VER: 7.2.3
                   ZLIB_VER: 1.2.11
                   TS: 1
+                - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+                  ARCH: x64
+                  VC: vc15
+                  PHP_VER: 7.3.0
+                  ZLIB_VER: 1.2.11
+                  TS: 0
+                - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+                  ARCH: x64
+                  VC: vc15
+                  PHP_VER: 7.3.0
+                  ZLIB_VER: 1.2.11
+                  TS: 1
+                - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+                  ARCH: x86
+                  VC: vc15
+                  PHP_VER: 7.3.0
+                  ZLIB_VER: 1.2.11
+                  TS: 0
+                - APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+                  ARCH: x86
+                  VC: vc15
+                  PHP_VER: 7.3.0
+                  ZLIB_VER: 1.2.11
+                  TS: 1
 
 build_script:
         ps: |