Simply check if there is any entry in one or more channels.
Make sure your system meets the minimum requirements:
{exp:has_entries}...{/exp:has_entries}
Below are the Tag Parameters. Those parameters can be used in the tag described above
Select the Channel(s) to check
channel="channel_name_1|channel_name_2"
Prefix the variables
prefix="has_entries"
Below are the Tag Variables. Those Variables can be used in the tag described above
Total entry count of all channels
{has_entries:entry_count}
The channel data of the selected channel
{has_entries:channel_data}...{/has_entries:channel_data}
The channel_id
{has_entries:channel_data}
{has_entries:channel_data:channel_id}
{/has_entries:channel_data}
The Site ID
{has_entries:channel_data}
{has_entries:channel_data:site_id}
{/has_entries:channel_data
The Channel Name
{has_entries:channel_data}
{has_entries:channel_data:channel_name}
{/has_entries:channel_data}
The Channel Title
{has_entries:channel_data}
{has_entries:channel_data:channel_title}
{/has_entries:channel_data}
The Channel Url
{has_entries:channel_data}
{has_entries:channel_data:channel_url}
{/has_entries:channel_data}
Total entry per Channel
{has_entries:channel_data}
{has_entries:channel_data:total_entries}
{/has_entries:channel_data}
The total comments per Channel
{has_entries:channel_data}
{has_entries:channel_data:total_comments}
{/has_entries:channel_data}
The last date of an Entry
{has_entries:channel_data}
{has_entries:channel_data:last_entry_date}
{/has_entries:channel_data}
The last date of a Comment
{has_entries:channel_data}
{has_entries:channel_data:last_comment_date}
{/has_entries:channel_data}