У вашего броузера проблема в совместимости с HTML5
how to run multiple php version on xamp under windows 7.
i'm using :
- xampp 5.6.15 (php 5.6)
- xampp 1.7.5 (php 5.3.1)
So, to run multiple php, you must change port : Listen 80 to Listen 8080 and ssl port 443 to 444 in (httpd.conf and httpd-ssl.conf).