$conf, $runtime; function_exists('chdir') AND chdir(APP_PATH); $r = 'mysql' == $conf['cache']['type'] ? website_set('runtime', $runtime) : cache_set('runtime', $runtime); } function runtime_truncate() { global $conf; 'mysql' == $conf['cache']['type'] ? website_set('runtime', '') : cache_delete('runtime'); } register_shutdown_function('runtime_save'); ?>I want to display posts common in 3 categories|Programmer puzzle solving

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    I want to display posts common in 3 categories

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    I tried 'category__and'. But its working only for 2 categories. I want to display common posts from any number of categories.

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