3

当我在浏览器中输入一个 URL 时，我得到了输出（如下）

{"categories":[{"id":"16","name":"Arm Locks"},{"id":"555","name":"Articles"},{"id":"19","name":"Back Control"},{"id":"21","name":"Brazilian Jiu Jitsu"},{"id":"12","name":"Chokes"},{"id":"15","name":"Crank"},{"id":"14","name":"Escapes"},{"id":"554","name":"Grappling Videos"},{"id":"10","name":"Guard and Rubber Guard"},{"id":"13","name":"Guard Breaks"},{"id":"23","name":"Half Guard"},{"id":"26","name":"Japanese Jujutsu"},{"id":"1","name":"Jiu Jitsu Training"},{"id":"5","name":"Jiu Jitsu Videos"},{"id":"25","name":"Leg Locks"},{"id":"27","name":"MMA"},{"id":"17","name":"Mount"},{"id":"30","name":"North South Position"},{"id":"556","name":"Platinum Members Only"},{"id":"29","name":"Self Defense"},{"id":"18","name":"Side Control"},{"id":"28","name":"Strikes"},{"id":"11","name":"Sweeps"},{"id":"20","name":"Theory & Discussions"},{"id":"9","name":"Throws"},{"id":"31","name":"Wrestling"},{"id":"22","name":"Wrist Locks"}]}

但是当我尝试使用 PHP 解析时（PHP 代码和输出）

PHP 代码

<?php
$url = "https://domain.com/apis/cats.php?type=json";

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$json = curl_exec($ch);
$dcjsn = json_decode($json);

foreach ($dcjsn->categories as $cat){
    echo $cat->id;
    echo "<br>";
}

输出是：

555
15
14
554
13
23
26
25
27
17
30
29
18
28
20
9
22

意味着大约有 10 件物品丢失！

我未能识别代码中的错误。我也尝试过 file_get_contents() 但没有运气。

添加：

var_dump($json)的结果 

string(574) "{"categories":[{"id":"555","name":"Articles"},{"id":"15","name":"Crank"},{"id":"14","name":"Escapes"},{"id":"554","name":"Grappling Videos"},{"id":"13","name":"Guard Breaks"},{"id":"23","name":"Half Guard"},{"id":"26","name":"Japanese Jujutsu"},{"id":"25","name":"Leg Locks"},{"id":"27","name":"MMA"},{"id":"17","name":"Mount"},{"id":"30","name":"North South Position"},{"id":"29","name":"Self Defense"},{"id":"18","name":"Side Control"},{"id":"28","name":"Strikes"},{"id":"20","name":"Theory & Discussions"},{"id":"9","name":"Throws"},{"id":"22","name":"Wrist Locks"}]}"
4

1 回答 1

4

您请求的 API 似乎需要身份验证，而您在浏览器中时并未从 PHP 代码登录。

于 2013-01-13T05:16:43.947 回答