YMC Filter

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

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Detected usage of meta_value, possible slow query.

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Global constants defined by a theme/plugin should start with the theme/plugin prefix. Found: "YMC_SMART_FILTER_DIR".

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$_POST['ymc_fg_filter_options'] not unslashed before sanitization. Use wp_unslash() or similar

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Library files that are already in the WordPress core are not permitted.

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Use placeholders and $wpdb->prepare(); found interpolated variable $placeholders at "DELETE FROM {$postmeta_table} WHERE meta_key IN ($placeholders)"

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strip_tags() is discouraged. Use the more comprehensive wp_strip_all_tags() instead.

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unlink() is discouraged. Use wp_delete_file() to delete a file.

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

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Scripts must be registered/enqueued via wp_enqueue_script()

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Using exclusionary parameters, like post__not_in, in calls to get_posts() should be done with caution, see https://wpvip.com/documentation/performance-improvements-by-removing-usage-of-post__not_in/ for more information.

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Setting `suppress_filters` to `true` is prohibited.

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Use placeholders and $wpdb->prepare(); found $sql

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Simple placeholders should not be quoted in the query string in $wpdb->prepare(). Found: '%s'.

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Replacement variables found, but no valid placeholders found in the query.