如何使用PHP获取JSON嵌套数组中所有IP地址的long、lat

需要修复php代码方面的帮助，希望获得JSON数组中所有IP地址的经度和纬度，并将其地理位置数据转储到.csv文件中，或再次以JSON显示

示例JSON数组：

[
  {
    "addr": "103.229.122.253:19667",
    "services": 1,
    "lastsend": 1578797285,
    "lastrecv": 1578797285,
    "conntime": 1577841460,
  },
  {
    "addr": "212.239.222.147:19667",
    "services": 1,
    "lastsend": 1578797395,
    "lastrecv": 1578797395,
    "conntime": 1577841462,
  },
  {
    "addr": "[2602:ffc5:20::1:63b5]:19667",
    "services": 1,
    "lastsend": 1578797381,
    "lastrecv": 1578797381,
    "conntime": 1577936686,
    "banscore": 0
  }
]

<?php

ini_set('display_startup_errors', 1);
ini_set('display_errors', 1);
error_reporting(-1);

// Read JSON file
$readjson = file_get_contents('*extenal link to get JSON data*') ;

//Decode JSON
$data = json_decode($readjson, true);

foreach ($data as $emp) {
echo  $emp['addr'] .",";
}
echo "<br/>";

?>

PHP代码：

[
  {
    "addr": "103.229.122.253:19667",
    "services": 1,
    "lastsend": 1578797285,
    "lastrecv": 1578797285,
    "conntime": 1577841460,
  },
  {
    "addr": "212.239.222.147:19667",
    "services": 1,
    "lastsend": 1578797395,
    "lastrecv": 1578797395,
    "conntime": 1577841462,
  },
  {
    "addr": "[2602:ffc5:20::1:63b5]:19667",
    "services": 1,
    "lastsend": 1578797381,
    "lastrecv": 1578797381,
    "conntime": 1577936686,
    "banscore": 0
  }
]

<?php

ini_set('display_startup_errors', 1);
ini_set('display_errors', 1);
error_reporting(-1);

// Read JSON file
$readjson = file_get_contents('*extenal link to get JSON data*') ;

//Decode JSON
$data = json_decode($readjson, true);

foreach ($data as $emp) {
echo  $emp['addr'] .",";
}
echo "<br/>";

?>

---

Nice教程可能会对array\u专栏有所帮助？为什么不使用get addr？