如果未提供值，是否删除内部样式表？

我使用此代码在head-section代码中添加选项，但我的问题是，如果没有提供任何值，我的函数仍会回显空<style type="text/css"><style> 进入我的脑海

如果没有返回值，如何删除样式标记 谢谢你！！

//Hook into WP head and add our options
add_action(\'wp_head\', \'dynamic_options\');
function dynamic_options() {    
$checkbox = get_option(\'sandbox_theme_social_options\');
$checkbox[\'hide_sidebar\'] =\'\';  
$css = array( \'headercolor\'=>\'blank\',

          \'wrapper_background_color\'=>\'blank\' );
          $css[\'headercolor\'] = get_header_textcolor(); // get_header_textcolor();
          $css[\'wrapper_background_color\'] = get_option(\'wrapper_background_color\');
        foreach( $css as $itm => $value ) {
            if($value !=\'blank\') {

              echo \'<style type="text/css">\';
                if($css[\'wrapper_background_color\']!=\'\'){
                 echo "#wrapper{background-color:".$css[\'wrapper_background_color\'].";
                 }"; break; 
                }//End if background color 
                    if ($checkbox[\'hide_sidebar\'] == \'on\'){
                     echo \'.sidebar_sec{display:none;}\';
                    }//End if sidebar on
                echo \'</style>\';
            }//End If value Blank

        }//End Foreach

}// End Dynamic options

add_action(\'wp_head\', \'dynamic_options\'); function dynamic_options() { $checkbox = (array) get_option(\'sandbox_theme_social_options\'); if ( ! isset($checkbox[\'hide_sidebar\']) ) $checkbox[\'hide_sidebar\'] = \'off\'; $css = array( \'headercolor\' => get_header_textcolor() ? : \'blank\', \'wrapper_background_color\' => get_option(\'wrapper_background_color\') ? : \'blank\' ); $out = \'\'; if( $css[\'wrapper_background_color\'] != \'blank\') $out .= \'#wrapper { background-color:"\' . $css[\'wrapper_background_color\'] . \'"; }\'; // I think you forgot following 2 lines in your code ;) if( $css[\'headercolor\'] != \'blank\') $out .= \'#header { color: "\' . $css[\'headercolor\'] . \'"; }\'; if ( $checkbox[\'hide_sidebar\'] == \'on\' ) $out .= \'.sidebar_sec { display:none; }\'; if ( $out != \'\') echo \'<style type="text/css">\' . $out . \'</style>\'; }

foreach( $css as $itm => $value ) { if( isset( $itm ) ) { echo \'<style type="text/css">\'; if($value !=\'blank\') { if($css[\'wrapper_background_color\']!=\'\'){ echo "#wrapper{background-color:".$css[\'wrapper_background_color\']."; }"; break; }//End if background color if ($checkbox[\'hide_sidebar\'] == \'on\'){ echo \'.sidebar_sec{display:none;}\'; }//End if sidebar on }//End If value Blank echo \'</style>\'; } //End If is set }//End Foreach

检查博客帖子数量并添加css的代码

是否有任何类型的jquery可以用来检查页面上是否只有一篇博客文章，然后添加自定义CSS？如果有多个，添加不同的CSS？<div class=\"main-blog top top-fix\"> <?php if ( have_posts() ) : ?> <?php while ( have_posts() ) : the_post( \'\' ); ?> <div class=\"divider ove

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检查博客帖子数量并添加css的代码