更改类别显示名称功能

Question

有更聪明的方法来编写这个函数吗？也许是通配符？

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;
});

Answer 1

所以，我想知道为什么不直接通过管理页面设置类别标题，例如，对于具有段式alphabetical的类，可以将All Characters设置为类别的静态标题？

那样的话，你就不需要上get_the_archive_title了。

但是无论如何，这里有一种方法可以将那些(26) elseif简化为一个：(使用正则表达式)

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

    return $title;
} );

因此，在上面的代码中，我使用了preg_match()，也使用了get_queried_object()，它在类别存档页面上返回当前类别的术语对象/数据(例如，example.com/category/alphabetical/中的一个)。