/** * Describe what your function does. * * @since 1.1.1 (Set the version this function was introduced) * * (Mention the variables the function uses) * What: Type: Variable: Description: * @param array $variable_name This is what this variable does. * @param int $width Width of the image in pixels. * @param string|array $size Optional. Size or array of sizes of the result image. * * (Mention what the return output would be) * @return array Returns Width and height. */
This is a header style comment, it would be placed ABOVE your custom function. Place as much information as possible inside the comment tags.