fix platform compatibility

syyongx · syyongx · commit c265c351e6b3 · 2019-08-06T12:16:11.000+08:00
diff --git a/php_linux.go b/php_linux.go
diff --git a/php_unix.go b/php_unix.go
@@ -1,5 +1,7 @@
 // php2go functions
 
+// +build linux darwin
+
 package php2go
 
 import (
diff --git a/php_windows.go b/php_windows.go
@@ -0,0 +1,5 @@
+// php2go functions
+
+// +build windowns
+
+package php2go
