php这种写法什么意思?
php
if ( defined('WP_USE_THEMES') && WP_USE_THEMES ) : $template = false; if ( is_404() && $template = get_404_template() ) : elseif ( is_search() && $template = get_search_template() ) : elseif ( is_front_page() && $template = get_front_page_template() ) : elseif ( is_home() && $template = get_home_template() ) : elseif ( is_post_type_archive() && $template = get_post_type_archive_template() ) : elseif ( is_tax() && $template = get_taxonomy_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; /** * Filter the path of the current template before including it. * * @since 3.0.0 * * @param string $template The path of the template to include. */ if ( $template = apply_filters( 'template_include', $template ) ) include( $template ); return;endif;
回复讨论(解决方案)
http://www.cnblogs.com/janoyu/archive/2010/05/04/sourcejoy_com_php_other_syntax.html
你可以参考这篇文章
http://www.cnblogs.com/janoyu/archive/2010/05/04/sourcejoy_com_php_other_syntax.html
你可以参考这篇文章
我发的情况和这些都不同啊
if(defined('WP_USE_THEMES') && WP_USE_THEMES){ if('条件'){ //... }elseif('条件'){ //... } //.....}
很简单,&&的前面是判断->真/假,后面是赋值->必然为真
因为shortcut的原因,如果&&的前半段为假,后半段就不需要判断了
就是说只有前半段判断为真时,后面才能赋值
因为程序的目的是赋值,所以冒号后面就不需要实际的语句了
可以理解为
也算是三元式的偷懒写法
$template = (is_404()) ? get_404_template() : false;
或
if (is_404()) $template = get_404_template();
else $template = false;
根据不同结果,显示不同页面
很简单,&&的前面是判断->真/假,后面是赋值->必然为真
因为shortcut的原因,如果&&的前半段为假,后半段就不需要判断了
就是说只有前半段判断为真时,后面才能赋值
因为程序的目的是赋值,所以冒号后面就不需要实际的语句了
明白了!
if ( is_404() && $template = get_404_template() ) :
就是
if ( is_404() ) { $template = get_404_template();}

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