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<?php $data = array( 'data_1', 'data_2', 'data_3', 'data_4', 'data_5' => array( 'data_5_1', 'data_5_2' ) ); function display_list($array) { foreach ($array as $k => $v) { if (is_array($v)) { echo "$k\n"; display_list($v); } else { echo "$v\n"; } } } display_list($data);

This is an error 500

Value for `_results` contains invalid data `array`


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