How to use php file_get_contents with ESP8266

manpreet Best Answer 2 years ago

A part of my project need to get datas from an ESP8266 with php script. I tested this script and i don't know why i can get the datas in an iframe element and nothing with file_get_content function. In iframe element my browser displayes "Hello my friend!" as wanted:

The ESP8266 server mode at 192.168.4.1 address, part of code:

String webpage = "
Hello
";
webpage += "
my
";
webpage += "
friend!
";

String cipSend = "AT+CIPSEND=";
cipSend += 0;
cipSend += ",";
cipSend +=webpage.length();
cipSend +="\r\n";

sendData(cipSend,1000,DEBUG);
sendData(webpage,1000,DEBUG);
sendData("AT+CIPCLOSE=0\r\n", 100, DEBUG);

The php script:

    
    

 htmlspecialchars($lines_string);

?>
    

If i replace the url by:

$url=https://arduino.stackexchange.com

It works with php script,so what is the issue with the ESP8266 ?

manpreet 2 years ago

To process the request by php, you must send valid HTTP response. The browser tolerates too much.

String webpage = "HTTP/1.1 200 OK\r\nConnection: close\r\n\r\n";
webpage += "
Hello
";