When I attempt to open a php project using Visual Studio 2022, the Solution Explorer displays "myproject.name (incompatible)" and the phpproj file is displayed. The Error list displays:
Severity Code Description Project File Line Suppression State
Warning The element 'PropertyGroup' in namespace 'http://schemas.microsoft.com/developer/msbuild/2003' has invalid child element 'Name' in namespace 'http://schemas.microsoft.com/developer/msbuild/2003'. List of possible elements expected: 'Property, VisualStudioVersion, MinimumVisualStudioVersion, AdditionalFileItemNames, AllowUnsafeBlocks, AnalysisMode, AppConfigForCompiler, ApplicationDefaultFont, ApplicationHighDpiMode, ApplicationIcon, ApplicationRevision, ApplicationVersion, ApplicationUseCompatibleTextRendering, ApplicationVisualStyles, AppDesignerFolder, AspNetConfiguration, AspNetCoreHostingModel, AspNetCoreModuleName, AssemblyKeyContainerName, AssemblyKeyProviderName, AssemblyName, AssemblyOriginatorKeyFile, AssemblyOriginatorKeyFileType, AssemblyOriginatorKeyMode, AssemblyType, AutoGenerateBindingRedirects, AutorunEnabled, BaseAddress, BootstrapperComponentsLocation, BootstrapperComponentsUrl, BootstrapperEnabled, CharacterSet, CheckForOverflowUnderflow, CLRSupport, UseDebugLibraries, CodePage, Configuration, ConfigurationName, ConfigurationOverrideFile, CreateDesktopShortcut, CreateWebPageOnPublish, CurrentSolutionConfigurationContents, DebugSecurityZoneURL, DebugSymbols, DebugType, DefaultClientScript, DefaultHTMLPageLayout, Def.... Miscellaneous Files C:\Users\steve\Dropbox\Documents\My Web Sites\course.avyrescue.com\course.avyrescue.phpproj 4
Note that the name does contain a period. I can open other php projects in 2022. I can open this project in 2019.