Teach you step by step how to use PHP to connect to Baidu smart chat interface

Teach you step by step how to use PHP to connect to Baidu smart chat interface

Introduction:
With the rapid development of artificial intelligence, smart chat systems have become many applications important component in. Baidu provides a powerful set of smart chat interfaces that can help us quickly implement smart conversation functions. This article will introduce in detail how to use PHP to connect to Baidu Smart Chat interface, and come with code examples.

Step 1: Apply for API Key and Secret Key
Before we start, we need to apply for Baidu’s API Key and Secret Key. First, log in to the Baidu Smart Cloud Developer Center (https://cloud.baidu.com/) and create an account. Then, enter the console, find "Smart Chat" in the left navigation bar and click to enter. On the details page, click "Use Now" and follow the instructions to create an app. After creation, we can find the corresponding API Key and Secret Key in the "Management Console". Make a note of these two values, we will use them in later steps.

Step 2: Set API request parameters
In PHP, we can use the curl library to send HTTP requests. Before connecting to Baidu Smart Chat interface, we need to set some request parameters. The following code snippet shows how to set API request parameters:

<?php
$url = "https://aip.baidubce.com/rpc/2.0/unit/service/chat";
$access_token = "YOUR_ACCESS_TOKEN";
$bot_id = "YOUR_BOT_ID";
$session_id = "YOUR_SESSION_ID";
$query = "你好";
$post_data = array(
    "bot_session" => "",
    "log_id" => "",
    "request" => array(
        "bernard_level" => 1,
        "client_session" => '{"client_results":"", "candidate_options":[]}',
        "query" => $query,
        "query_info" => array(
            "asr_candidates" => [],
            "source" => "KEYBOARD",
        ),
        "updates" => "",
    ),
    "bot_id" => $bot_id,
    "service_id" => "S10000",
    "skill_ids" => array("42130"),
    "session_id" => $session_id,
);
$post_data = json_encode($post_data);
?>

In the above code, we set the URL of the interface, access token (access_token), bot ID (bot_id), session ID (session_id) and User's question. Please replace YOUR_ACCESS_TOKEN, YOUR_BOT_ID and YOUR_SESSION_ID in the above code with your own corresponding values.

Step 3: Send an API request and process the return value
After setting the request parameters, we can use curl to send an HTTP POST request to the Baidu Smart Chat interface and obtain the return result. The following code shows how to send a request and handle the return value:

<?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
    'Content-Type: application/json',
    'Content-Length: ' . strlen($post_data),
));
$result = curl_exec($ch);
curl_close($ch);
$result = json_decode($result, true);
$answer = $result["result"]["response"]["action_list"][0]["say"];
echo "机器人回答：" . $answer;
?>

In the above code, we use the curl library to set up the POST request and set the request parameters to $post_data. Then, send the request through the curl_exec function and parse the returned result using the json_decode function. Finally, we get the robot's answer from the return result and output it to the front end.

Summary:
Through the above steps, we have successfully used PHP to connect to Baidu intelligent chat interface. We only need to set the API request parameters, send the API request and process the return value to implement a simple and convenient smart chat function. I hope this article will help you understand how to use PHP to connect to Baidu Smart Chat interface. For more details, please refer to Baidu Smart Cloud official documentation.

The above is the detailed content of Teach you step by step how to use PHP to connect to Baidu smart chat interface. For more information, please follow other related articles on the PHP Chinese website!