undefined method DLM_Download_Version::get_the_version_number()

Download Monitor是WordPress主题开发下载功能中非常热门的插件。除了默认的下载模板之外，还支持自定义模板，这就的需要一些PHP开发经验->简单的函数标签调用。

Fatal error: Uncaught Error: Call to undefined method DLM_Download_Version::get_the_version_number()
Error: Call to undefined method DLM_Download_Version::get_the_version_number()

<a class="download-link" title="<?php if ( $dlm_download->get_version()->has_version_number() ) {
	printf( __( 'Version %s', 'download-monitor' ), $dlm_download->get_version()->get_the_version_number() );
} ?>" href="<?php $dlm_download->the_download_link(); ?>" rel="nofollow">
	<?php $dlm_download->the_title(); ?>
	(<?php printf( _n( '1 download', '%d downloads', $dlm_download->get_download_count(), 'download-monitor' ), $dlm_download->get_download_count() ) ?>)
</a>

来看看官方这个代码，

$dlm_download->get_version()->get_the_version_number()

其实是错的，经查源码，应该为

$dlm_download->get_version()->get_version_number()