PHP gets all node paths for JSON data

Before we talked about using JavaScript to get the JSON data node path, we went further today to explain all the node paths that PHP gets from the JSON data

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<?php   function Itertree ($data) {$retData = array (); $data = Json_decode ($da TA, True); if (!is_array ($data) && empty ($data)) {echo ' Error! '. n "; else {$queue = array (); foreach ($data as $field => $value) {$queue [] = $field;} $head = 0; $tail = count ($queue); while ($head < $tail) {$field = $queue [$head + +]; $path = explode ("/", $field); $tmpData = & $data; foreach ($path As $key => $ph) {$tmpData = & $tmpData [$ph];} if (Is_array ($tmpData) &&!empty ($tmpData)) {$newField = $f Ield; foreach ($tmpData as $curField => $curValue) {$newField = $field. '/' . $curField; $queue [$tail + +] = $newField; } else {$retData [] = $field;}} return $retData; }  //test Data $data = file_get_contents ("http://restapi.ele.me/v1/restaurants?extras%5b%5d=food_activity& Extras%5b%5d=restaura nt_activity&extras%5b%5d=certification&fields%5b%5d=id&fields%5b%5d=name& Fiel ds%5b%5d=phone&fields%5b%5d=promotion_info&fields%5b%5d=name_for_url&fields%5b%5d=flavors&fields% 5B%5D=is_time_ensure& Fields%5b%5d=is_premium&fields%5b%5d=image_path&fields%5b%5d=rating&fie Lds%5B%5D=is_free_delivery &fields%5b%5d=minimum_order_amount&fields%5b%5d=order_lead_time&fields%5 B%5D=is_support_invoice &fields%5b%5d=is_new&fields%5b%5d=is_third_party_delivery&fields%5b% 5D=is_in_book_time&fields% 5b%5d=rating_count&fields%5b%5d=address&fields%5b%5d=month_sales&fields% 5B%5D=delivery_fee& Fields%5b%5d=minimum_free_delivery_amount&fields%5b%5d=minimum_order_des cription&fields%5B%5D=minimum_ Invoice_amount&fields%5b%5d=opening_hours&fields%5b%5d=is_online_pay ment&fields%5B%5D=status& Fields%5b%5d=supports&fields%5b%5d=in_delivery_area&geohash=wx4g07 j0w1v7&is_premium=0&limit= 1000&offset=24&type=geohash ");   $ret = Itertree ($data); Print_r ($ret);

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