archdexls主题游戏页面game-play.php有评论时，报错( ! ) Warning: printf(): Too few arguments in D:\wamp\www\wp-content\themes\arcadexls\games-play.php on line 97

( ! ) Warning: printf(): Too few arguments in D:\wamp\www\wp-content\themes\arcadexls\games-play.php on line 97
Call Stack
#    Time    Memory    Function    Location
1    0.0000    241656    {main}( )    ..\index.php:0
2    0.0000    244696    require( 'D:\wamp\www\wp-blog-header.php' )    ..\index.php:17
3    0.5254    33285248    require_once( 'D:\wamp\www\wp-includes\template-loader.php' )    ..\wp-blog-header.php:16
4    0.5254    33285336    do_action( )    ..\template-loader.php:12
5    0.5313    33304000    call_user_func_array:{D:\wamp\www\wp-includes\plugin.php:496} ( )    ..\plugin.php:496
6    0.5313    33304080    arcadexls_play_template_redirect( )    ..\plugin.php:496
7    0.5313    33304272    get_template_part( )    ..\template_redirect.php:118
8    0.5313    33305136    locate_template( )    ..\general-template.php:171
9    0.5313    33305320    load_template( )    ..\template.php:477
10    0.5313    33322456    require( 'D:\wamp\www\wp-content\themes\arcadexls\single-play.php' )    ..\template.php:503
11    0.7578    34129056    get_template_part( )    ..\single-play.php:8
12    0.7578    34129760    locate_template( )    ..\general-template.php:171
13    0.7578    34129880    load_template( )    ..\template.php:477
14    0.7578    34196248    require( 'D:\wamp\www\wp-content\themes\arcadexls\games-play.php' )    ..\template.php:503
15    0.8018    34206848    printf ( )    ..\games-play.php:97

第97行代码

            <span class="iconb-date"><?php _e('Uploaded on:', MYAPB_THEMENAME); ?> <strong><?php echo get_the_date('d'); ?> <?php echo get_the_date('M'); ?> , <?php echo get_the_date('Y'); ?></strong></span> <span class="iconb-user"><?php _e('Uploader:', MYAPB_THEMENAME); ?> <a href="<?php echo get_author_posts_url($post->post_author); ?>"><?php the_author_meta('display_name',$post->post_author); ?></a></span> <span class="iconb-cate"><?php _e('Categories:', MYAPB_THEMENAME); ?> <?php echo get_the_category_list(', '); ?></span> <span class="iconb-comt"><?php printf( _n( 'Comments: <strong>%2$s</strong>', 'Comments: <strong>%1$s</strong>', get_comments_number(), MYAPB_THEMENAME),number_format_i18n( get_comments_number() )); ?></span> <?php echo get_the_tag_list('<span class="iconb-tags">'.__('Tags:', MYAPB_THEMENAME).' ', ', ','</span>'); ?>

其中显示评论及其条数的代码

<?php printf( _n( 'Comments: <strong>%2$s</strong>', 'Comments: <strong>%1$s</strong>', get_comments_number(), MYAPB_THEMENAME),number_format_i18n( get_comments_number() )); ?>

不是太懂，稍微查了一下，“如果 % 符号多于 arg 参数，则您必须使用占位符。占位符被插入 % 符号之后，由数字和 "\$" 组成。”

其中的"%1$s"和"%2$s"说占位符吧，少了\；说不是占位符吧，多了数字和$;搞不懂这里_n是做什么用的，也是一个函数，而且要四个参数？

<?php echo MYAPB_THEMENAME ?>的结果是arcadexls

<?php echo get_comments_number() ?>的结果是1

<?php echo _n( 'Comments: <strong>%2$s</strong>', 'Comments: <strong>%1$s</strong>', get_comments_number(), MYAPB_THEMENAME) ?>的结果是Comments: %2$s

<?php echo number_format_i18n( get_comments_number() ) ?>的结果是1

故最后printf()方法的实际调用为printf("%2$s", 1);　　很明显这个应该是有问题的

将代码中的1$和2$都去掉，改为

<?php printf( _n( 'Comments: <strong>%s</strong>', 'Comments: <strong>%s</strong>', get_comments_number(), MYAPB_THEMENAME),number_format_i18n( get_comments_number() )); ?>

OK，至少可以解决眼下问题，虽然没完全弄明白！