DirectoryIndex home.php index.php
RewriteEngine On

# Enable Gzip Compression
<IfModule mod_deflate.c>
    # Compress HTML, CSS, JavaScript, Text, XML and fonts
    AddOutputFilterByType DEFLATE application/javascript
    AddOutputFilterByType DEFLATE application/rss+xml
    AddOutputFilterByType DEFLATE application/vnd.ms-fontobject
    AddOutputFilterByType DEFLATE application/x-font
    AddOutputFilterByType DEFLATE application/x-font-opentype
    AddOutputFilterByType DEFLATE application/x-font-otf
    AddOutputFilterByType DEFLATE application/x-font-truetype
    AddOutputFilterByType DEFLATE application/x-font-ttf
    AddOutputFilterByType DEFLATE application/x-javascript
    AddOutputFilterByType DEFLATE application/xhtml+xml
    AddOutputFilterByType DEFLATE application/xml
    AddOutputFilterByType DEFLATE font/opentype
    AddOutputFilterByType DEFLATE font/otf
    AddOutputFilterByType DEFLATE font/ttf
    AddOutputFilterByType DEFLATE image/svg+xml
    AddOutputFilterByType DEFLATE image/x-icon
    AddOutputFilterByType DEFLATE text/css
    AddOutputFilterByType DEFLATE text/html
    AddOutputFilterByType DEFLATE text/javascript
    AddOutputFilterByType DEFLATE text/plain
    AddOutputFilterByType DEFLATE text/xml

    # Remove browser bugs (only needed for really old browsers)
    BrowserMatch ^Mozilla/4 gzip-only-text/html
    BrowserMatch ^Mozilla/4\.0[678] no-gzip
    BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
    Header append Vary User-Agent
</IfModule>

# Custom Error Pages
ErrorDocument 404 /error_404.php
ErrorDocument 500 /error_500.php

# 1. Redirect /index or /home to root
# (Exclude actual file requests if needed, but here we want to enforce clean root for homepage)
RewriteCond %{THE_REQUEST} ^[A-Z]{3,}\s/(index|home|index\.php|home\.php) [NC]
RewriteRule ^.*$ / [L,R=301]

# 2. Allow admin folder to be handled normally (it has its own index.php)
RewriteRule ^admin($|/) - [L]

# 3. Handle extensionless URLs (.php)
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME}\.php -f
RewriteRule ^([^.]+)$ $1.php [NC,L]

# 4. Redirect browser from .php to extensionless URL (Exclude POST to prevent data loss)
RewriteCond %{REQUEST_METHOD} !POST
RewriteCond %{THE_REQUEST} ^[A-Z]{3,}\s/+(.+)\.php[\s?] [NC]
RewriteRule ^ /%1 [R=301,L]
