I want to change php ini settings

Hi,

I want to change php ini settings, but i always got this error : invalid_custom_php_ini_settings_txt

Here is my php custom setting:

max_execution_time = 1500
max_input_time = 900
memory limit = 512M
post_max_size = 128
upload_max_filesize = 512M

 

Code:

memory limit = 512M

Missing underscore character?

 

Hi ,
Thanks for your help