add_theme_support post-thumbnails not working

I tried to add thumbnail support to my theme

add_theme_support( 'post-thumbnails', 
     array( 'post', 'page', 'service', '100', '90') 
);

I tried to add thumbnail support to my theme

add_theme_support( 'post-thumbnails', 
     array( 'post', 'page', 'service', '100', '90') 
);

• post-thumbnails

Share Improve this question edited Mar 23, 2019 at 14:45 fuxia♦ 107k3939 gold badges255255 silver badges459459 bronze badges asked Mar 23, 2019 at 10:02 ah jonyah jony 111 silver badge22 bronze badges 1

• what are 100 and 90? Which hook is used to call this code? – Qaisar Feroz Commented Mar 23, 2019 at 10:30

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1 Answer 1

Sorted by: Reset to default 1

Have a look at this documentation.

This feature must be called before the init hook is fired. That means it needs to be placed directly into functions.php or within a function attached to the after_setup_theme hook. For custom post types, you can also add post thumbnails using the register_post_type() function as well.

TRY this

add_theme_support( 'post-thumbnails', 
     array( 'post', 'page', 'service') 
);