我需要使用以下形式在 PHP 中創建一個 JSON 物件
{
"Routes": [{
"route_ID": "49",
"geom": [{
"lat": "-30.63607",
"lng": "147.499935"
}, {
"lat": "-30.63631",
"lng": "147.499868"
}]
},
{
"route_ID": "50",
"geom": [{
"lat": "-30.63607",
"lng": "147.499935"
}, {
"lat": "-30.63631",
"lng": "147.499868"
}]
}
]
}
我的代碼的問題是我似乎無法找到一種連接 JSON 元素的方法$jsonString，因為它只是產生“route_ID”：“50”。
（是的，我同意關于這個問題的 stackoverflow 有很多問題，但它們幾乎都指的是從靜態陣列派生的單個元素）。順便說一句，我$jsonString在下面的代碼中得到并需要對其進行預處理。
$jsonString = "[{\"route_ID\":\"49\",\"geom\":\"<LineString><coordinates>147.499935,-30.63607 <\\/coordinates><\\/LineString>\"},{\"route_ID\":\"50\",\"geom\":\"<LineString><coordinates>147.499935,-30.63607<\\/coordinates><\\/LineString>\"}]";
/* PHP Code */
$jsonArray = json_decode($jsonString, true);
$json = new stdClass();
$json_Routes = new stdClass();
$route_geom_Array = array();
foreach ($jsonArray as $record) {
print_r($record);
$geomString = $record["geom"];
$geomString = str_replace('<LineString><coordinates>', ' ', $geomString);
$geomString = str_replace('</coordinates></LineString>', ' ', $geomString);
$geomString = trim($geomString);
$route_geom_Array = explode(' ', $geomString);
for ($i = 0; $i < sizeof($route_geom_Array); $i ) {
$var = explode(',', $route_geom_Array[$i]);
$route_geom[] = array('lat' => $var[1], 'lng' => $var[0]); // lat long
}
$json->route_ID = $record["route_ID"]; //<- Problem area
$json->geom = $route_geom; //<- Problem area
}
$json_Routes->Routes = $json;
$jsonArray = json_encode($json_Routes);
echo $jsonArray;
exit ();`
有人可以告訴我如何做到這一點。
謝謝
uj5u.com熱心網友回復：
您需要創建$json_Routes->Routes一個陣列并在塊$json內推送結構foreach，例如：
$json_Routes->Routes = [];
foreach ($jsonArray as $record) {
// Existing code ...
$json_Routes->Routes[] = $json;
}
uj5u.com熱心網友回復：
您需要將物件推送到陣列，這里的解決方案：
$jsonArray = json_decode($jsonString, true);
$json_Routes = new stdClass();
$route_Array = [];
$route_geom_Array = [];
$route_ID_Array = [];
$items = [];
$index = 0;
foreach ($jsonArray as $record) {
//print_r($record);
$geomString = $record["geom"];
$geomString = str_replace('<LineString><coordinates>', ' ', $geomString);
$geomString = str_replace('</coordinates></LineString>', ' ', $geomString);
$geomString = trim($geomString);
$route_geom_Array = explode(' ', $geomString);
for ($i = 0; $i < sizeof($route_geom_Array); $i ) {
$var = explode(',', $route_geom_Array[$i]);
$route_geom[] = array('lat' => $var[1], 'lng' => $var[0]); // lat long
}
$json = new stdClass();
$json->route_ID = $record["route_ID"]; //<- Problem area
$json->geom = $route_geom; //<- Problem area
array_push($route_Array,$json);
}
$json_Routes->Routes = $route_Array;
$result = json_encode($json_Routes);
echo $result;
exit();
轉載請註明出處，本文鏈接：https://www.uj5u.com/gongcheng/429794.html