问题
I got this after I try to running my code on esp32
Notice: Undefined index: imageFile in C:\xampp\htdocs\acc.php on line 23
My code on esp32
HTTPClient http;
http.begin("http://192.168.43.86/acc.php"); //Specify destination for HTTP request
http.addHeader("Content-Disposition", "form-data; name=\"imageFile\"; filename=\"picture.jpg\"\r\n");
http.addHeader("Content-type", "image/jpeg");
int httpResponseCode = http.POST(cam.getfb(), cam.getSize());
if (httpResponseCode > 0) {
String response = http.getString(); //Get the response to the request
Serial.println(httpResponseCode); //Print return code
Serial.println(response); //Print request answer
} else {
Serial.print("Error on sending POST: ");
Serial.println(httpResponseCode);
}
http.end();
I can send String by using this code but my code above don't work (cam.getfb() return as uint8_t and cam.getSize() return as size_t)
http.addHeader("Content-type", "application/x-www-form-urlencoded");
int httpResponseCode = http.POST("word=" + Cword);
code in php
<?php
$target_dir = "uploads/";
$target_file = $target_dir . basename($_FILES["imageFile"]["name"]);
$uploadOk = 1;
$imageFileType = strtolower(pathinfo($target_file,PATHINFO_EXTENSION));
// Check if image file is a actual image or fake image
if(1) {
$check = getimagesize($_FILES["imageFile"]["tmp_name"]);
if($check !== false) {
echo "File is an image - " . $check["mime"] . ".";
$uploadOk = 1;
} else {
echo "File is not an image.";
$uploadOk = 0;
}
}
// Check if file already exists
if (file_exists($target_file)) {
echo "Sorry, file already exists.";
$uploadOk = 0;
}
// Check file size
if ($_FILES["imageFile"]["size"] > 500000) {
echo "Sorry, your file is too large.";
$uploadOk = 0;
}
// Allow certain file formats
if($imageFileType != "jpg" && $imageFileType != "png" && $imageFileType != "jpeg"
&& $imageFileType != "gif" ) {
echo "Sorry, only JPG, JPEG, PNG & GIF files are allowed.";
$uploadOk = 0;
}
// Check if $uploadOk is set to 0 by an error
if ($uploadOk == 0) {
echo "Sorry, your file was not uploaded.";
// if everything is ok, try to upload file
} else {
if (move_uploaded_file($_FILES["imageFile"]["tmp_name"], $target_file)) {
echo "The file ". basename( $_FILES["imageFile"]["name"]). " has been uploaded.";
} else {
echo "Sorry, there was an error uploading your file.";
}
}
?>
11/13/2018 I try to update my code
<?php
date_default_timezone_set("Asia/Bangkok");
$date = date("Y_m_d_h_i_s");
$directory = "http://192.168.43.192/capture.jpg";
$data = $rawData = file_get_contents("php://input");
$new = "images/".$date.".jpg";
file_put_contents($new, $data);
?>
Solved
WORK.
#include "WiFiClientSecure.h"
#include "Camera_Exp.h"
CAMERA cam;
char ssid[] = "";
char pass[] = "";
#define SENSOR 19
#define SERVER ""
#define PORT 443
#define BOUNDARY "--------------------------133747188241686651551404"
#define TIMEOUT 20000
void setup()
{
pinMode(SENSOR,INPUT);
Serial.begin(115200);
Serial.println("\r\nHello Line Notify");
cam.setFrameSize(CAMERA_FS_QVGA);
cam.setMirror(false);
cam.setVflip(false);
cam.setWhiteBalance(true);
esp_err_t err = cam.init();
if (err != ESP_OK)
{
Serial.println("Camera init failed with error =" + String( err));
return;
}
WiFi.begin(ssid, pass);
unsigned char led_cnt=0;
while (WiFi.status() != WL_CONNECTED)
{
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected.");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
}
void loop()
{
while(!digitalRead(SENSOR)){
Serial.println("Undetect");
}
String res;
if(digitalRead(SENSOR))
{
Serial.println("Send Picture");
esp_err_t err;
err = cam.capture();
if (err == ESP_OK)
{
res = sendImage("asdw","A54S89EF5",cam.getfb(),cam.getSize());
Serial.println(res);
}
else
Serial.println("Camera Error");
while(digitalRead(SENSOR));
}
}
//////
String sendImage(String token,String message, uint8_t *data_pic,size_t size_pic)
{
String bodyTxt = body("message",message);
String bodyPic = body("imageFile",message);
String bodyEnd = String("--")+BOUNDARY+String("--\r\n");
size_t allLen = bodyTxt.length()+bodyPic.length()+size_pic+bodyEnd.length();
String headerTxt = header(token,allLen);
WiFiClientSecure client;
if (!client.connect(SERVER,PORT))
{
return("connection failed");
}
client.print(headerTxt+bodyTxt+bodyPic);
client.write(data_pic,size_pic);
client.print("\r\n"+bodyEnd);
delay(20);
long tOut = millis() + TIMEOUT;
while(client.connected() && tOut > millis())
{
if (client.available())
{
String serverRes = client.readStringUntil('\r');
return(serverRes);
}
}
}
String header(String token,size_t length)
{
String data;
data = F("POST /ln/bot.php HTTP/1.1\r\n");
data += F("cache-control: no-cache\r\n");
data += F("Content-Type: multipart/form-data; boundary=");
data += BOUNDARY;
data += "\r\n";
data += F("User-Agent: PostmanRuntime/6.4.1\r\n");
data += F("Accept: */*\r\n");
data += F("Host: ");
data += SERVER;
data += F("\r\n");
data += F("accept-encoding: gzip, deflate\r\n");
data += F("Connection: keep-alive\r\n");
data += F("content-length: ");
data += String(length);
data += "\r\n";
data += "\r\n";
return(data);
}
String body(String content , String message)
{
String data;
data = "--";
data += BOUNDARY;
data += F("\r\n");
if(content=="imageFile")
{
data += F("Content-Disposition: form-data; name=\"imageFile\"; filename=\"picture.jpg\"\r\n");
data += F("Content-Type: image/jpeg\r\n");
data += F("\r\n");
}
else
{
data += "Content-Disposition: form-data; name=\"" + content +"\"\r\n";
data += "\r\n";
data += message;
data += "\r\n";
}
return(data);
}
and php
<?php
$uploadfile = "";
echo "Uploading ";
echo $_FILES["imageFile"]["name"];
if(strlen(basename($_FILES["imageFile"]["name"])) > 0)
{
$uploadfile = basename($_FILES["imageFile"]["name"]);
if(move_uploaded_file($_FILES["imageFile"]["tmp_name"], $uploadfile))
{
@chmod($uploadfile,0777); echo " Ok! ";
$datum = mktime(date('H')+0, date('i'), date('s'), date('m'), date('d'), date('y'));
if (file_exists("old/".date('Y_m_d', $datum) )) {
print("Directory already exists.\n");
} else {
mkdir("old/".date('Y_m_d', $datum));
copy("index1.php","old/".date('Y_m_d', $datum)."/index.php");
print("Directory creating.\n");
}
echo "saved ";
copy($uploadfile,"old/".date('Y_m_d', $datum)."/".date('Y.m.d_H-i-s', $datum).".jpg");
}
else echo " Error copying!";
}
echo date('Y.m.d_H:i', $datum);
echo "status = DONE";
?>
来源：https://stackoverflow.com/questions/53264373/esp32-try-to-send-image-file-to-php-with-httpclient