php获取json数据所有的节点路径_PHP教程

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function iterTree($data) {

$retData = array();

$data = json_decode($data, 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

$field = $queue[$head++];

$path = explode("/", $field);

$tmpData = &$data;

foreach ($path as $key => $ph) {

$tmpData = &$tmpData[$ph];

}

if (is_array($tmpData) && !empty($tmpData)) {

$newField = $field;

foreach ($tmpData as $curField => $curValue) {

$newField = $field . '/' . $curField;

$queue[$tail++] = $newField;

}

} else {

$retData[] = $field;

}

}

}

return $retData;

}

//测试数据

$data = file_get_contents("http://restapi.ele.me/v1/restaurants?extras[]=food_activity&extras[]=restaura

nt_activity&extras[]=certification&fields[]=id&fields[]=name&fiel

ds[]=phone&fields[]=promotion_info&fields[]=name_for_url&fields[]=flavors&fields%

5B]=is_time_ensure&fields[]=is_premium&fields[]=image_path&fields[]=rating&fie

lds[]=is_free_delivery&fields[]=minimum_order_amount&fields[]=order_lead_time&fields%5

B]=is_support_invoice&fields[]=is_new&fields[]=is_third_party_delivery&fields[%

5D=is_in_book_time&fields[]=rating_count&fields[]=address&fields[]=month_sales&fields%

5B]=delivery_fee&fields[]=minimum_free_delivery_amount&fields[]=minimum_order_des

cription&fields[]=minimum_invoice_amount&fields[]=opening_hours&fields[]=is_online_pay

ment&fields[]=status&fields[]=supports&fields[]=in_delivery_area&geohash=wx4g07

j0w1v7&is_premium=0&limit=1000&offset=24&type=geohash");

$ret = iterTree($data);

print_r($ret);