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$_REQUEST[‘meta_data_filter_args’]

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Search data in array, useful when its necessary to get seacrh data for any purposes. Its generates by "do_shortcode('[meta_data_filter_results]');" or by basic MDTF search request in the file: wp-content\plugins\meta-data-filter\views\shortcode\meta_data_filter.php

Example of usinghttp://wp-filter.com/howto/how-to-make-searchable-enfold-magazine-entries/