php - json_encode / decode char troubles -

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i'm having troubles json_encode/decode functions when store string mysql db table. problem in swedish chars, ÅÄÖ. if have like

$my_arr = array('räksmörgås'); $json = json_encode($my_arr): print_r(json_decode($json));

it works fine, trouble is, said, when store jsonstring db , collects them. table (entire db) has encoding 'utf8_general_ci'. i've tried uft8_unicode_ci' well, same result, output 'ru00e4ksmu00f6rgu00e5s'. column store valus 'text'.

what doing wrong?

edit, forgot mention plugin wordpress , i'm using $wpdb->prepare() , $wpdb->query().

somewhere in code stripping slashes.

// text: räksmörgås // json_encode(): r\u00e4ksm\u00f6rg\u00e5s // output: ru00e4ksmu00f6rgu00e5s

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