thanks, @bosco both solutions help me a lot. I actually needed all custom field associated with a post type using advanced custom field (acf).

Ok You can. you are not able to understand what I want... :)

i am not coding any thing. i need idea. i am not telling any body to code for me. I search lots of time to find the solutions. Now i am searching in wordpress core how to they retrieve field with other custom fields in a post or page. If i found i will answer it here. Thanks

I need all fields with a post type. it may be feature image or body, custom field. Not for post. :) ex: array( 'post_type'=>array('image,body,title,featured_image')) post type may be page or post or anything. i hope clear now.