Wird im Verzeichnis log.d/php.Tagesdatum gespeichert
ini_set(„error_log“, $BS_DIR.„/log.d/php.“.date(„d“));
php.ini:
error_log = filename

ini_set(„log_errors“, „On“);
php.ini:
log_errors = on

Ausschalten
ini_set(„display_errors“, „Off“);
php.ini:
display_errors = Off

Ausschalten (nur für Debug einschalten)
ini_set(„display_startup_errors“, „off“);
php.ini
display_startup_errors = off

E_ALL
All errors and warnings (doesn't include E_STRICT)

E_ERROR
fatal run-time errors

E_WARNING
run-time warnings (non-fatal errors)

E_PARSE
compile-time parse errors

E_NOTICE
run-time notices (these are warnings which often result
from a bug in your code, but it's possible that it was
intentional (e.g., using an uninitialized variable and
relying on the fact it's automatically initialized to an
empty string)

E_STRICT
run-time notices, enable to have PHP suggest changes
to your code which will ensure the best interoperability
and forward compatibility of your code

E_CORE_ERROR
fatal errors that occur during PHP's initial startup
E_CORE_WARNING
warnings (non-fatal errors) that occur during PHP's
initial startup

E_COMPILE_ERROR
fatal compile-time errors

E_COMPILE_WARNING
compile-time warnings (non-fatal errors)

E_USER_ERROR
user-generated error message

E_USER_WARNING
user-generated warning message

E_USER_NOTICE
user-generated notice message

Examples:
Show all errors, except for notices and coding standards warnings
error_reporting = E_ALL & ~E_NOTICE & ~E_STRICT

Show all errors, except for notices
error_reporting = E_ALL & ~E_NOTICE

Show only errors
error_reporting = E_COMPILE_ERROR|E_ERROR|E_CORE_ERROR

Show all errors and warnings (doesn't include E_STRICT)
ini_set(„error_reporting“, E_ALL);
php.ini
error_reporting = E_ALL