php - maximizing file size for wordpress theming locally -

is necessary host wordpress site maximize file size? can locally in wamp server? have made changes in php.ini file , saved in wp-admin folder doesnt work.

i have tried following code in .htaccess folder:

php_value upload_max_filesize 50m php_value post_max_size 50m php_value max_execution_time 500 php_value max_input_time 500 

and maximize file size as

upload_max_filesize = 64m 

but locally not working.