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-rw-r--r--src/Monolog/Handler/RotatingFileHandler.php7
1 files changed, 4 insertions, 3 deletions
diff --git a/src/Monolog/Handler/RotatingFileHandler.php b/src/Monolog/Handler/RotatingFileHandler.php
index 8c99f2d..62feb22 100644
--- a/src/Monolog/Handler/RotatingFileHandler.php
+++ b/src/Monolog/Handler/RotatingFileHandler.php
@@ -69,11 +69,12 @@ class RotatingFileHandler extends StreamHandler
public function setFilenameFormat($filenameFormat, $dateFormat)
{
- if (!in_array($dateFormat, [self::FILE_PER_DAY, self::FILE_PER_MONTH, self::FILE_PER_YEAR])) {
+ if (!preg_match('{^Y(([/_.-]m)([/_.-]d)?)?$}', $dateFormat)) {
throw new InvalidArgumentException(
'Invalid date format - format must be one of '.
- 'RotatingFileHandler::FILE_PER_DAY, RotatingFileHandler::FILE_PER_MONTH '.
- 'or RotatingFileHandler::FILE_PER_YEAR.'
+ 'RotatingFileHandler::FILE_PER_DAY ("Y-m-d"), RotatingFileHandler::FILE_PER_MONTH ("Y-m")'.
+ 'or RotatingFileHandler::FILE_PER_YEAR ("Y"), or you can set one of the '.
+ 'date formats using slashes, underscores and/or dots instead of dashes.'
);
}
if (substr_count($filenameFormat, '{date}') === 0) {