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<?php $data = array( 'key1' => 'val1', 'key2' => 'Äèöüß', 'key3' => array ('sub1' => 'Äpfel'), ); var_dump(filter_var_array($data,FILTER_SANITIZE_FULL_SPECIAL_CHARS));
Output for git.master, git.master_jit, rfc.property-hooks
array(3) { ["key1"]=> string(4) "val1" ["key2"]=> string(33) "&Auml;&egrave;&ouml;&uuml;&szlig;" ["key3"]=> array(1) { ["sub1"]=> string(10) "&Auml;pfel" } }

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