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

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All output should be run through an escaping function (like esc_html_e() or esc_attr_e()), found '_e'.

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$_COOKIE['pld_' . $post_id] not unslashed before sanitization. Use wp_unslash() or similar

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

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

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Detected usage of a non-sanitized input variable: $_COOKIE['pld_' . $post_id]

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

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In footer ($in_footer) is not set explicitly wp_enqueue_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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load_plugin_textdomain() has been discouraged since WordPress version 4.6. When your plugin is hosted on WordPress.org, you no longer need to manually include this function call for translations under your plugin slug. WordPress will automatically load the translations for you as needed.

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print_r() found. Debug code should not normally be used in production.