使代码片段进入foreach循环

Question

在向最终用户显示值之前，我有一段代码用于替换名为“authors”的wordpress分类中的逗号的双破折号。

这是伟大的工作，但现在我需要把它应用到几个不同的分类，不只是“作者”，而且还“打印机”，“翻译”等

我的想法是建立一个数组分类法而不是单个变量，然后使用foreach循环将查找和替换应用到它们中的每一个，但无论我如何尝试它，我似乎都无法使其工作...

任何想法如何使如果$ custom_taxonomy_type是一个数组，那么将代码放到foreach循环中？

这是目前正在为单一分类标准工作的代码。

if(!is_admin()){ // make sure the filters are only called in the frontend 

$custom_taxonomy_type = 'authors'; // here goes your taxonomy type 

function comma_taxonomy_filter($tag_arr){ 
    global $custom_taxonomy_type; 
    $tag_arr_new = $tag_arr; 
    if($tag_arr->taxonomy == $custom_taxonomy_type && strpos($tag_arr->name, '--')){ 
     $tag_arr_new->name = str_replace('--',', ',$tag_arr->name); 
    } 
    return $tag_arr_new;  
} 
add_filter('get_authors', comma_taxonomy_filter); 

function comma_taxonomies_filter($tags_arr){ 
    $tags_arr_new = array(); 
    foreach($tags_arr as $tag_arr){ 
     $tags_arr_new[] = comma_taxonomy_filter($tag_arr); 
    } 
    return $tags_arr_new; 
} 
add_filter('get_the_taxonomies', comma_taxonomies_filter); 
add_filter('get_terms',    comma_taxonomies_filter); 
add_filter('get_the_terms',   comma_taxonomies_filter); 

} 

按照@Epodax的要求，这里是我迄今尝试过的两件事。这两种结果中的空白页：

if(!is_admin()){ // make sure the filters are only called in the frontend 

    $custom_taxonomy_type_array = array('authors', 'printer'); // here goes your taxonomy type 

    foreach ($custom_taxonomy_type_array as $custom_taxonomy_type) { 
     function comma_taxonomy_filter($tag_arr){ 
      global $custom_taxonomy_type; 
      $tag_arr_new = $tag_arr; 
      if($tag_arr->taxonomy == $custom_taxonomy_type && strpos($tag_arr->name, '--')){ 
       $tag_arr_new->name = str_replace('--',', ',$tag_arr->name); 
      } 
      return $tag_arr_new;  
     } 
     add_filter('get_'.$custom_taxonomy_type, comma_taxonomy_filter); 

     function comma_taxonomies_filter($tags_arr){ 
      $tags_arr_new = array(); 
      foreach($tags_arr as $tag_arr){ 
       $tags_arr_new[] = comma_taxonomy_filter($tag_arr); 
      } 
      return $tags_arr_new; 
     } 
     add_filter('get_the_taxonomies', comma_taxonomies_filter); 
     add_filter('get_terms',    comma_taxonomies_filter); 
     add_filter('get_the_terms',   comma_taxonomies_filter); 
    } 


} 

和

if(!is_admin()){ // make sure the filters are only called in the frontend 

    $custom_taxonomy_type_array = array('authors', 'printer'); // here goes your taxonomy type 

    function comma_taxonomy_filter($tag_arr){ 
     foreach ($custom_taxonomy_type_array as $custom_taxonomy_type) { 
      global $custom_taxonomy_type; 
      $tag_arr_new = $tag_arr; 
      if($tag_arr->taxonomy == $custom_taxonomy_type && strpos($tag_arr->name, '--')){ 
       $tag_arr_new->name = str_replace('--',', ',$tag_arr->name); 
      } 
      return $tag_arr_new;  
     } 
    } 
    foreach ($custom_taxonomy_type_array as $custom_taxonomy_type) { 
     add_filter('get_'.$custom_taxonomy_type, comma_taxonomy_filter); 
    } 

    function comma_taxonomies_filter($tags_arr){ 
     foreach ($custom_taxonomy_type_array as $custom_taxonomy_type) { 
      $tags_arr_new = array(); 
      foreach($tags_arr as $tag_arr){ 
       $tags_arr_new[] = comma_taxonomy_filter($tag_arr); 
      } 
      return $tags_arr_new; 
     } 
    } 
    foreach ($custom_taxonomy_type_array as $custom_taxonomy_type) { 
     add_filter('get_the_taxonomies', comma_taxonomies_filter); 
     add_filter('get_terms',    comma_taxonomies_filter); 
     add_filter('get_the_terms',   comma_taxonomies_filter); 
    } 

} 

Answer 1

这一点很难，而无需您的设置，但我认为这不是需要一个for循环，这样的事情，使用in_array，应该工作（未经测试，只是表示变更功能）：

$custom_taxonomy_types = array('authors', 'printers', 'translators'); 

function comma_taxonomy_filter($tag_arr){ 
    global $custom_taxonomy_types; 
    $tag_arr_new = $tag_arr; 
    if(in_array($tag_arr->taxonomy, $custom_taxonomy_types) && strpos($tag_arr->name, '--')){ 
     $tag_arr_new->name = str_replace('--',', ',$tag_arr->name); 
    } 
    return $tag_arr_new;  
} 

编辑

看起来你还需要类似的东西（根据你的新代码）;我已经错过添加过滤器：（！is_admin（））

foreach ($custom_taxonomy_types as $custom_taxonomy_type) { 
    add_filter('get_'.$custom_taxonomy_type, comma_taxonomy_filter); 
} 

Answer 2

如果{//确保过滤器只称为前端

$custom_taxonomy_type = array ('form', 'package-type'); 

function comma_taxonomy_filter($tag_arr){ 
    global $custom_taxonomy_type; 
    $tag_arr_new = $tag_arr; 
    if($tag_arr->taxonomy == $custom_taxonomy_type[0] || $custom_taxonomy_type[1] && strpos($tag_arr->name, '--')){ 
     $tag_arr_new->name = str_replace('--',', ',$tag_arr->name); 
    } 
    return $tag_arr_new;  
} 
add_filter('get_'.$custom_taxonomy_type, comma_taxonomy_filter); 

function comma_taxonomies_filter($tags_arr){ 
    $tags_arr_new = array(); 
    foreach($tags_arr as $tag_arr){ 
     $tags_arr_new[] = comma_taxonomy_filter($tag_arr); 
    } 
    return $tags_arr_new; 
} 
add_filter('get_the_taxonomies', comma_taxonomies_filter); 
add_filter('get_terms',    comma_taxonomies_filter); 
add_filter('get_the_terms',   comma_taxonomies_filter); 

我的代码是工作 “|| “