You need the following values in php.ini:
# set timezone date.timezone = "Europe/Zurich"; # allow uploads file_uploads = On # max size upload_max_filesize = 512M # max. size of entire upload batch (M/G) - must be bigger than upload_max_filesize post_max_size = 1024M # max. amount of memory to use (M/G) - must be bigger than upload_max_filesize for picture processing memory_limit = 512M # time to parse uploaded data in seconds max_input_time = 600 # time to run script after input parsing in seconds max_execution_time = 300 # input vars (very high value for language tables needed) max_input_vars = 10000 # templates can require many iterations xdebug.max_nesting_level = 500 # expose expose_php = Off # Session Lifetime (needed for phpMyAdmin) session.gc_maxlifetime = 86400