Change category display name function

Is there a smarter way to write this function? Maybe with wildcards?

add_filter( 'get_the_archive_title', function ( $title ) {
    if ( is_category( 'alphabetical' ) ) {
        $title = 'All Characters';
    }
    elseif ( is_category( 'a-alphabetical' ) ) {
        $title = 'Characters Starting with A';
    }
    elseif ( is_category( 'b-alphabetical' ) ) {
        $title = 'Characters Starting with B';
    }
    elseif ( is_category( 'c-alphabetical' ) ) {
        $title = 'Characters Starting with C';
    }
    elseif ( is_category( 'd-alphabetical' ) ) {
        $title = 'Characters Starting with D';
    }
    elseif ( is_category( 'e-alphabetical' ) ) {
        $title = 'Characters Starting with E';
    }
    elseif ( is_category( 'f-alphabetical' ) ) {
        $title = 'Characters Starting with F';
    }
    elseif ( is_category( 'g-alphabetical' ) ) {
        $title = 'Characters Starting with G';
    }
    elseif ( is_category( 'h-alphabetical' ) ) {
        $title = 'Characters Starting with H';
    }
    elseif ( is_category( 'i-alphabetical' ) ) {
        $title = 'Characters Starting with I';
    }
    elseif ( is_category( 'j-alphabetical' ) ) {
        $title = 'Characters Starting with J';
    }
    elseif ( is_category( 'k-alphabetical' ) ) {
        $title = 'Characters Starting with K';
    }
    elseif ( is_category( 'l-alphabetical' ) ) {
        $title = 'Characters Starting with L';
    }
    elseif ( is_category( 'm-alphabetical' ) ) {
        $title = 'Characters Starting with M';
    }
    elseif ( is_category( 'n-alphabetical' ) ) {
        $title = 'Characters Starting with N';
    }
    elseif ( is_category( 'o-alphabetical' ) ) {
        $title = 'Characters Starting with O';
    }
    elseif ( is_category( 'p-alphabetical' ) ) {
        $title = 'Characters Starting with P';
    }
    elseif ( is_category( 'q-alphabetical' ) ) {
        $title = 'Characters Starting with Q';
    }
    elseif ( is_category( 'r-alphabetical' ) ) {
        $title = 'Characters Starting with R';
    }
    elseif ( is_category( 's-alphabetical' ) ) {
        $title = 'Characters Starting with S';
    }
    elseif ( is_category( 't-alphabetical' ) ) {
        $title = 'Characters Starting with T';
    }
    elseif ( is_category( 'u-alphabetical' ) ) {
        $title = 'Characters Starting with U';
    }
    elseif ( is_category( 'v-alphabetical' ) ) {
        $title = 'Characters Starting with V';
    }
    elseif ( is_category( 'w-alphabetical' ) ) {
        $title = 'Characters Starting with W';
    }
    elseif ( is_category( 'x-alphabetical' ) ) {
        $title = 'Characters Starting with X';
    }
    elseif ( is_category( 'y-alphabetical' ) ) {
        $title = 'Characters Starting with Y';
    }
    elseif ( is_category( 'z-alphabetical' ) ) {
        $title = 'Characters Starting with Z';
    }
    return $title;
});

Answers:

Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave a comment & I’ll get back to you as soon as possible.

Method 1

So I wonder why don’t you just set the category title via the admin page, e.g. for the one having the slug alphabetical, you could set All Characters as a static title for the category?

That way, you wouldn’t need to hook on get_the_archive_title..

But anyway, here is one way of how can you reduce those (26) elseif into just one: (using regular expression)

add_filter( 'get_the_archive_title', function ( $title ) {
    if ( is_category( 'alphabetical' ) ) {
        $title = 'All Characters';
    // If the slug starts with <letter>-alphabetical, we set the title to
    // "Characters Starting with <the LETTER in uppercase>".
    } elseif ( is_category() && preg_match( '/^([a-z])-alphabetical$/', get_queried_object()->slug, $m ) ) {
        $title = 'Characters Starting with ' . strtoupper( $m[1] );
    }

    return $title;
} );

So in the above code, I used preg_match(), and also get_queried_object() which returns the term object/data of the current category on a category archive page (e.g. one at example.com/category/alphabetical/).

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0