Co-Authors, Multiple Authors and Guest Authors in an Author Box with PublishPress Authors

Global variables defined by a theme/plugin should start with the theme/plugin prefix. Found: "$post_author".

Functions declared in the global namespace by a theme/plugin should start with the theme/plugin prefix. Found: "get_post_authors".

Missing $domain parameter in function call to esc_html__().

A function call to esc_html__() with texts containing placeholders was found, but was not accompanied by a "translators:" comment on the line above to clarify the meaning of the placeholders.

A function call to esc_html__() with texts containing placeholders was found, but was not accompanied by a "translators:" comment on the line above to clarify the meaning of the placeholders.

A function call to esc_html__() with texts containing placeholders was found, but was not accompanied by a "translators:" comment on the line above to clarify the meaning of the placeholders.

A function call to esc_html__() with texts containing placeholders was found, but was not accompanied by a "translators:" comment on the line above to clarify the meaning of the placeholders.

A function call to esc_attr__() with texts containing placeholders was found, but was not accompanied by a "translators:" comment on the line above to clarify the meaning of the placeholders.

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$field_name'.

Hook names invoked by a theme/plugin should start with the theme/plugin prefix. Found: "pp_multiple_authors_default_options".