Simple Image Popup

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

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

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Classes declared by a theme/plugin should start with the theme/plugin prefix. Found: "SimpleImagePopup".

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

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

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Resource version not set in call to wp_register_script(). This means new versions of the script may not always be loaded due to browser caching.

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Version parameter is not explicitly set or has been set to an equivalent of "false" for wp_register_style; This means that the WordPress core version will be used which is not recommended for plugin or theme development.

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In footer ($in_footer) is not set explicitly wp_register_script; It is recommended to load scripts in the footer. Please set this value to `true` to load it in the footer, or explicitly `false` if it should be loaded in the header.

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The $text parameter must be a single text string literal. Found: $message

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Tested up to: 6.7 < 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.