Summary:
The `E_STRICT` PHP constant is deprecated since PHP 8.4 per https://www.php.net/manual/en/migration84.deprecated.php.
Per https://wiki.php.net/rfc/deprecations_php_8_4#remove_e_strict_error_level_and_deprecate_e_strict_constant, the `E_STRICT` constant was still in use in-between PHP 7.0 and 7.4 for PHP's `mysqli` extension and PHP's `htmlentities()` function.
The `E_STRICT` notice was removed from PHP's `mysqli` extension in e895e96286 for PHP 7.4.0.
Since rP23a49eb403c9ea6c58f4ae2f22416e90a9d24c14, Phorge requires 7.2.25.
Phorge does not call PHP's `htmlentities()` function.
`E_STRICT` is a part of `E_ALL` since PHP 5.4.0 per https://github.com/php/php-src/blob/php-5.4.0/NEWS#L69, thus there is no gain in keeping it.
Closes T15989
Test Plan: None.
Reviewers: O1 Blessed Committers, avivey
Reviewed By: O1 Blessed Committers, avivey
Subscribers: avivey, keithzg, mainframe98, tobiaswiese, valerio.bozzolan, Matthew, Cigaryno
Maniphest Tasks: T15989
Differential Revision: https://we.phorge.it/D25887