- expose_php=Off — hide PHP version from response headers
- allow_url_include=Off — prevent remote file inclusion
- open_basedir=/var/www:/tmp — restrict filesystem access
- disable_functions — block shell execution functions not used by the app
- Session hardening: strict_mode, httponly, secure, samesite=Lax,
use_only_cookies, 48-char session IDs with 6 bits/char
Note: allow_url_fopen left On (required by PHPMailer for SMTP streams).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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