我正在尝试打印一个表，其中包含从 REST API 检索的数据中的监控组列表。结果以 JSON 格式返回。以下是 JSON 数据：
{
"code": 0,
"message": "success",
"data":
[
{
"group_id": "169839000000116001",
"display_name": "MTI Servers",
"description": "",
"monitors":
[
]
},
{
"group_id": "169839000000180001",
"display_name": "PRB Servers",
"description": "",
"monitors":
[
"169839000000179003",
"169839000000176013",
"169839000000175003",
"169839000000176007"
]
},
{
"group_id": "169839000000046270",
"display_name": "DB Servers",
"description": "",
"monitors":
[
"169839000000051011",
"169839000000047023",
"169839000000078001"
]
},
{
"group_id": "169839000000025200",
"display_name": "EXT Apps",
"description": "External Monitoring of Applications",
"monitors":
[
"169839000000025274",
"169839000000025377",
"169839000000025359",
"169839000000025369",
"169839000000025385",
"169839000000025226"
]
},
{
"group_id": "169839000000025109",
"display_name": "EXT Services",
"description": "External monitoring of services.",
"monitors":
[
"169839000000046165",
"169839000000025256",
"169839000000025168",
"169839000000025202",
"169839000000025189",
"169839000000025217",
"169839000000025265"
]
},
{
"group_id": "169839000000046015",
"display_name": "ZMB Servers",
"description": "",
"monitors":
[
"169839000000050017",
"169839000000050025",
"169839000000049001",
"169839000000050001",
"169839000000053019",
"169839000000051003",
"169839000000050009"
]
},
{
"group_id": "169839000000046282",
"display_name": "NWK Devices",
"description": "",
"monitors":
[
"169839000000082009",
"169839000000084077",
"169839000000084001",
"169839000000082229"
]
},
{
"group_id": "169839000000046013",
"display_name": "VBR Servers",
"description": "",
"monitors":
[
"169839000000047007"
]
},
{
"group_id": "169839000000054197",
"display_name": "LNX Servers",
"description": "",
"monitors":
[
"169839000000060483"
]
},
{
"group_id": "169839000000046020",
"display_name": "VSP Servers",
"description": "",
"monitors":
[
"169839000000060177",
"169839000000060170",
"169839000000060088",
"169839000000060095",
"169839000000060102",
"169839000000060109",
"169839000000054102"
]
},
{
"group_id": "169839000000046058",
"display_name": "WND Servers",
"description": "",
"monitors":
[
"169839000000066001",
"169839000000063119"
]
},
{
"group_id": "169839000000128001",
"display_name": "TPT Servers",
"description": "",
"monitors":
[
"169839000000143041",
"169839000000148017",
"169839000000127035",
"169839000000123003",
"169839000000126011",
"169839000000122011",
"169839000000129001",
"169839000000158028"
]
}
]
}
我想打印组 ID、名称、描述和属于该组的监视器 ID 列表。 我正在使用json_decode但我似乎无法从数组中读取正确的变量。
这是我到目前为止的代码：
`<?php
/**
* Connect to the Site API and extract the list of monitor groups
*/
// URL to fetch
$url = "https://www.mymonitorsite.com/api/monitor_groups";
// Initialize cURL session
$ch = curl_init($url);
// Option to Return the Result, rather than just true/false
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
// Set Custom Headers
$headers = array(
'Authorization: Authtoken 12345678901234567890123456789012',
'Content-Type: application/json;charset=UTF-8',
'Accept: application/json; version=2.0',
);
// Option to set the custom headers
curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
// Perform the request, and save content to $result
$mongrps_json = curl_exec($ch);
// Close the cURL resource, and free up system resources!
curl_close($ch);
// Decode json data into a PHP Array
$mongrps_array = json_decode($mongrps_json, true);
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8"/>
<title>Monitor Group Test</title>
</head>
<body>
<?php
// List the first monitor group here (test)
echo "Group ID = " . $mongrps_array->data[0]->group_id . "<br>";
echo "Group Name = " . $mongrps_array->data[0]->display_name . <br>";
?>
</body>
</html>
`
以下是json_decode的var_dump：
array(3) { ["code"]=> int(0) ["message"]=> string(7) "success" ["data"]=> array(12) { [0]=> array(4) { ["group_id"]=> string(18) "169839000000116001" ["display_name"]=> string(11) "MTI Servers" ["description"]=> string(0) "" ["monitors"]=> array(0) { } } [1]=> array(4) { ["group_id"]=> string(18) "169839000000180001" ["display_name"]=> string(11) "PRB Servers" ["description"]=> string(0) "" ["monitors"]=> array(4) { [0]=> string(18) "169839000000179003" [1]=> string(18) "169839000000176013" [2]=> string(18) "169839000000175003" [3]=> string(18) "169839000000176007" } } [2]=> array(4) { ["group_id"]=> string(18) "169839000000046270" ["display_name"]=> string(10) "DB Servers" ["description"]=> string(0) "" ["monitors"]=> array(3) { [0]=> string(18) "169839000000051011" [1]=> string(18) "169839000000047023" [2]=> string(18) "169839000000078001" } } [3]=> array(4) { ["group_id"]=> string(18) "169839000000025200" ["display_name"]=> string(8) "EXT Apps" ["description"]=> string(35) "External Monitoring of Applications" ["monitors"]=> array(6) { [0]=> string(18) "169839000000025274" [1]=> string(18) "169839000000025377" [2]=> string(18) "169839000000025359" [3]=> string(18) "169839000000025369" [4]=> string(18) "169839000000025385" [5]=> string(18) "169839000000025226" } } [4]=> array(4) { ["group_id"]=> string(18) "169839000000025109" ["display_name"]=> string(12) "EXT Services" ["description"]=> string(31) "External monitoring of services" ["monitors"]=> array(7) { [0]=> string(18) "169839000000046165" [1]=> string(18) "169839000000025256" [2]=> string(18) "169839000000025168" [3]=> string(18) "169839000000025202" [4]=> string(18) "169839000000025189" [5]=> string(18) "169839000000025217" [6]=> string(18) "169839000000025265" } } [5]=> array(4) { ["group_id"]=> string(18) "169839000000046015" ["display_name"]=> string(11) "ZMB Servers" ["description"]=> string(0) "" ["monitors"]=> array(7) { [0]=> string(18) "169839000000050017" [1]=> string(18) "169839000000050025" [2]=> string(18) "169839000000049001" [3]=> string(18) "169839000000050001" [4]=> string(18) "169839000000053019" [5]=> string(18) "169839000000051003" [6]=> string(18) "169839000000050009" } } [6]=> array(4) { ["group_id"]=> string(18) "169839000000046282" ["display_name"]=> string(11) "NWK Devices" ["description"]=> string(0) "" ["monitors"]=> array(4) { [0]=> string(18) "169839000000082009" [1]=> string(18) "169839000000084077" [2]=> string(18) "169839000000084001" [3]=> string(18) "169839000000082229" } } [7]=> array(4) { ["group_id"]=> string(18) "169839000000046013" ["display_name"]=> string(11) "VBR Servers" ["description"]=> string(0) "" ["monitors"]=> array(1) { [0]=> string(18) "169839000000047007" } } [8]=> array(4) { ["group_id"]=> string(18) "169839000000054197" ["display_name"]=> string(11) "LNX Servers" ["description"]=> string(0) "" ["monitors"]=> array(1) { [0]=> string(18) "169839000000060483" } } [9]=> array(4) { ["group_id"]=> string(18) "169839000000046020" ["display_name"]=> string(11) "VSP Servers" ["description"]=> string(0) "" ["monitors"]=> array(7) { [0]=> string(18) "169839000000060177" [1]=> string(18) "169839000000060170" [2]=> string(18) "169839000000060088" [3]=> string(18) "169839000000060095" [4]=> string(18) "169839000000060102" [5]=> string(18) "169839000000060109" [6]=> string(18) "169839000000054102" } } [10]=> array(4) { ["group_id"]=> string(18) "169839000000046058" ["display_name"]=> string(11) "WND Servers" ["description"]=> string(0) "" ["monitors"]=> array(2) { [0]=> string(18) "169839000000066001" [1]=> string(18) "169839000000063119" } } [11]=> array(4) { ["group_id"]=> string(18) "169839000000128001" ["display_name"]=> string(11) "TPT Servers" ["description"]=> string(0) "" ["monitors"]=> array(8) { [0]=> string(18) "169839000000143041" [1]=> string(18) "169839000000148017" [2]=> string(18) "169839000000127035" [3]=> string(18) "169839000000123003" [4]=> string(18) "169839000000126011" [5]=> string(18) "169839000000122011" [6]=> string(18) "169839000000129001" [7]=> string(18) "169839000000158028" } } } }
使用foreach循环显示以下数据：
- group_id
- display_name
- 描述和
-
监视器（以逗号分隔的列表）
$mongrps_array = json_decode($mongrps_json, true); foreach($mongrps_array['data'] as $arr){ foreach($arr as $key => $value){ if($key == "monitors"){ echo $key . ": " . implode(", ", $value) . "<br />"; }else{ echo $key . ": " . $value . "<br />"; } } echo "<br />"; }
我刚刚尝试过，获取您正在寻找的数据应该没有任何问题。
例如，获取数组中第一项的group_id：
echo $decodedJson->data[0]->group_id;
也许您正在尝试将数据作为数组获取？在这种情况下，将参数 true 传递给 json_decode 函数：
$decodedJson = json_decode($originalJson, true);
echo $decodedJson['data'][0]['group_id'];