ESP8266向php发送数据代码

以下是ESP8266向php发送数据的示例代码：

#include <ESP8266WiFi.h>
#include <WiFiClient.h>

const char* ssid = "your_SSID";
const char* password = "your_PASSWORD";
const char* host = "your_PHP_host";

void setup() {
  Serial.begin(115200);
  delay(10);

  // Connect to WiFi network
  Serial.println();
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("");
  Serial.println("WiFi connected");

}

void loop() {
  WiFiClient client;

  const int httpPort = 80;
  if (!client.connect(host, httpPort)) {
    Serial.println("Connection failed");
    return;
  }

  // We now create a URI for the request
  String url = "/your_php_script.php";
  url += "?data=";
  url += "your_data_here";

  Serial.print("Requesting URL: ");
  Serial.println(url);

  // This will send the request to the server
  client.print(String("GET ") + url + " HTTP/1.1\r\n" +
               "Host: " + host + "\r\n" +
               "Connection: close\r\n" +
               "\r\n");

  delay(500);

  // Read all the lines of the reply from server and print them to Serial
  while (client.available()) {
    String line = client.readStringUntil('\r');
    Serial.print(line);
  }

  Serial.println();
  Serial.println("closing connection");
  delay(10000);  // Wait for 10 seconds before sending the next request
}

在这个示例中，你需要将以下变量替换为你的实际值：

- ssid: 你的WiFi网络名称
- password: 你的WiFi网络密码
- host: 你的PHP主机的地址
- url: 你的PHP脚本的路径和文件名
- data: 你要发送到PHP脚本的数据

此代码将通过GET请求发送数据到PHP脚本，并在串口监视器中打印服务器的响应。你可以根据需要更改请求类型和数据格式。