The error log location is set by the error_log PHP option.
For example:
error_log = "C:/server/log/php.log"
You can find out its location using the command line:
php -i | grep "error_log"

The error log location is set by the error_log PHP option.
For example:
error_log = "C:/server/log/php.log"
You can find out its location using the command line:
php -i | grep "error_log"
