Php/docs/sqlite3.configuration

From Get docs

Runtime Configuration

The behaviour of these functions is affected by settings in php.ini.

SQLite3 Configure Options
Name Default Changeable Changelog
sqlite3.extension_dir "" PHP_INI_SYSTEM Available as of PHP 5.3.11.
sqlite3.defensive 1 PHP_INI_SYSTEM Available as of PHP 7.2.17 and 7.3.4 for libsqlite ≥ 3.26.0.

Here's a short explanation of the configuration directives.

sqlite3.extension_dir string
Path to the directory where the loadable extensions for SQLite reside.
sqlite3.defensive bool
When the defensive flag is enabled, language features that allow ordinary SQL to deliberately corrupt the database file are disabled. This forbids writing directly to the schema, shadow tables (eg. FTS data tables), or the sqlite_dbpage virtual table. This php.ini setting is only effective for libsqlite ≥ 3.26.0.