.htaccess如何重写多个.php文件的规则

Question

Im using right now the next .htaccess:

RewriteEngine On
RewriteRule ^(.*)$ page1.php?$1 [QSA]

its working fine with page1, but not with page2

how can i make it to work please?

I tried this:

RewriteRule ^(.*)$ $1.php?$2 [QSA]

for every php file in the folder, but it's not working.