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php获取json数据所有的节点路径
文章主要介绍了php获取json数据所有的节点路径的方法和实例，有需要的小伙伴可以参考下。
之前我们讲解过使用javascript获取json数据节点路径的问题，今天我们更进一步，讲解下php获取json数据所有的节点路径
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<?php
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 < $tail) {
$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%5B%5D=food_activity&extras%5B%5D=restaurant_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%5B%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_payment&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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