Compatibility between PHP and amfphp

The compatibility between PHP and amfphp has been manually installed in the lamp environment. because the system is reinstalled, APPserv is installed to save trouble. The result shows that amfphp cannot run and access gateway. php file error: 'fatalerror: compatibility problem between Unc PHP and amfphp
Previously, the lamp environment was manually installed. because the system was reinstalled, APPserv was installed to save time. the result showed that amfphp could not run and access gateway. php file error: 'Fatal error: Uncaught exception 'verboseexception' with message 'non-static method CharsetHandler: setMethod () shocould not be called statically, assuming $ this from incompatible context 'in C: \ AppServ \ www \ amfphp1.9 \ core \ amf \ app \ Gateway. php: 134 Stack trace: #0 C: \ AppServ \ www \ amfphp1.9 \ core \ amf \ app \ Gateway. php (134): amfErrorHandler (2048, 'non-static meth... ', 'C: \ AppServ \ www \... ', 134, Array) #1 C: \ AppServ \ www \ amfphp1.9 \ gateway. php (154): Gateway-> service () #2 {main} thrown in C: \ AppServ \ www \ amfphp1.9 \ core \ amf \ app \ Gateway. php on line 134'
I think it should be a version compatibility issue. I downloaded an Appserv again. php is 5.x and everything is normal! Hope that new users like me will remember this question!