This is part of the wordpress code and I don't understand it:
if ( is_404() && $template = get_404_template() ) :
elseif ( is_search() && $template = get_search_template() ) :
elseif ( is_tax() && $template = get_taxonomy_template() ) :
elseif ( is_front_page() && $template = get_front_page_template() ) :
elseif ( is_home() && $template = get_home_template() ) :
elseif ( is_attachment() && $template = get_attachment_template() ) :
remove_filter('the_content', 'prepend_attachment');
elseif ( is_single() && $template = get_single_template() ) :
elseif ( is_page() && $template = get_page_template() ) :
elseif ( is_category() && $template = get_category_template() ) :
elseif ( is_tag() && $template = get_tag_template() ) :
elseif ( is_author() && $template = get_author_template() ) :
elseif ( is_date() && $template = get_date_template() ) :
elseif ( is_archive() && $template = get_archive_template() ) :
elseif ( is_comments_popup() && $template = get_comments_popup_template() ) :
elseif ( is_paged() && $template = get_paged_template() ) :
else :
$template = get_index_template();
endif;
A colon can replace a curly bracket in PHP. So if I substitute the colons, I get this:
if ( is_404() && $template = get_404_template() ) {
elseif ( is_search() && $template = get_search_template() ) {
elseif ( is_tax() && $template = get_taxonomy_template() ) {
...
}
}
}
else
Makes no sense to me, because each elseif is missing its opening if.
Reggie,
colons in if/else statements in PHP : it's NOT about replacing braces but a PAIR of braces.
Example :
if ($a) : doThis();
elseif ($b) : doThat();
else : doTheOther();
endif;
would become
if ($a) { doThis(); }
elseif ($b) { doThat(); }
else { doTheOther(); }
OR (since it's just one statement and not a block of statements)
if ($a) doThis();
elseif($b) doThat();
else doTheOther();
Reference : Alternative Syntax for Control Structures
As for this specific piece of code :
if ( is_404() && $template = get_404_template() ) :
elseif ( is_search() && $template = get_search_template() ) :
elseif ( is_tax() && $template = get_taxonomy_template() ) :
it translates to
if ( is_404() && $template = get_404_template() )
{ /* DO NOTHING */ }
elseif ( is_search() && $template = get_search_template() )
{ /* DO NOTHING */ }
Hint : The elseif
statement does NOT include the other elseif statements. (like elseif ($a) { elseif($b) {} }
)
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