Chg: Container name / Mig: db volumes / Fix: many (Del:

display_startup_errors as php.ini / Add: output_buffering as php.ini /
Chg: sql-mode / Add: Dockerfile as MariaDB)

php/php.ini

@@ -1,8 +1,5 @@
 display_errors = Off
-display_startup_errors = Off
 log_errors = On
 error_log = /proc/self/fd/2
-error_reporting = E_ALL & ~E_WARNING & ~E_NOTICE
-error_prepend_string =
-error_append_string =
+output_buffering = 4096
 default_charset = "UTF-8"