JSON Feed (jsonfeed.org)

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

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

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Function "get_self_link()" requires WordPress 5.3.0, but your plugin minimum supported version is WordPress 4.9.0.

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PHP file should prevent direct access. Add a check like: if ( ! defined( 'ABSPATH' ) ) exit;

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

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Detected usage of a non-sanitized input variable: $_SERVER['REQUEST_URI']

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Detected usage of a possibly undefined superglobal array index: $_SERVER['REQUEST_URI']. Check that the array index exists before using it.

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Hidden files are not permitted.

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Plugin name "JSON Feed (jsonfeed.org)" is different from the name declared in plugin header "JSON Feed".

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Tested up to: 6.5 < 7.0. The "Tested up to" value in your plugin is not set to the current version of WordPress. This means your plugin will not show up in searches, as we require plugins to be compatible and documented as tested up to the most recent version of WordPress.