How to upload image from client to server using PHP?

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I make a webserver embedded in mini computer Raspberry PI. It can display image if I copy image to folder /www/ on raspberry pi
Now, I want add/send image to folder /www/ on Raspberry Pi from other PC.
How can I do this? I am a newbie in PHP. Thanks for help.

Posted 4-Dec-14 2:51am

Member 10390715

Updated 13-Jul-18 0:32am

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Oso Oluwafemi Ebenezer 4-Dec-14 9:11am

You want to learn how to upload files in PHP?

Member 10390715 4-Dec-14 9:30am

Now, I not really too necessary. Because, earlier I can't convert binary become image and I try to copy image to /www/ folder automatic.
I can write code upload to server, but in the same PC.If you know, I willing to learn. Thanks

Oso Oluwafemi Ebenezer 4-Dec-14 9:35am

To understand you better, are you trying to use images on another computer on your "local site"?

Member 10390715 4-Dec-14 9:58am

No.
For example, I use mini computer Raspberry Pi (192.168.1.7) as a webserver. I connect my laptop (192.168.1.4) directly Raspberry Pi. Then I open browser type 192.168.1.7, it will send me webpage from webserver. I also make a php webpage to add data to mysql. With the image, I add the name of the image to mysql. Then I use USB copy image from my laptop to Raspberry Pi store it in folder /www/ on wamp server. I'll display image by name, like this:
<pre lang="PHP">
....
$Hinh = "www/".$row[5];
$Hinh = "<img src = '$Hinh' alt='$Ten'>";
echo $Hinh;
</pre>
But I do not like this. I don't like use USB to copy. I want to make a webpage like registration page. I can upload my avartar to this page.
But I don't know.
Sorry if my english is not good.

Oso Oluwafemi Ebenezer 4-Dec-14 10:04am

Firstly, that code looks familiar! Especially the $Ten and $Hinh.
Anyways, you can store the image in a folder and stored the file path in the database. Post the code of where you store the name of the file to the database.

Member 10390715 4-Dec-14 10:13am

You guide me "How to convert longblob to image in php?". Do you remember?

Member 10390715 4-Dec-14 10:20am

Here is my code:
<pre lang="PHP">

if($_POST["Card_ID"] !="" && $_POST["Ten"] != "")
//if(isset($_POST["Card_ID"]) && isset($_POST["Ten"]))
{
$Card_ID = $_POST["Card_ID"];
$Ma_nv = $_POST["Ma_nv"];
$Ten = $_POST["Ten"];
$Phong_ban = $_POST["Phong_ban"];
$Chuc_vu = $_POST["Chuc_vu"];
$Hinh ="";

//kiem tra hình xem đúng không

if($_FILES["file"]["error"] >0)
{
echo "Error: ". $_FILES["file"]["error"]."<br />";
exit;
}
//neu dung upload
else
{
move_uploaded_file($_FILES["file"]["tmp_name"],"nhan_vien/".$_FILES["file"]["name"]);
$luutru = "Lưu trữ tại: "."nhan_vien/".$_FILES["file"]["name"];
$Hinh = $_FILES["file"]["name"];
}
$sql = "INSERT INTO tt_nhanvien VALUES ( '$Card_ID','$Ma_nv','$Ten', '$Phong_ban', '$Chuc_vu','$Hinh')";
$result = mysql_query($sql,$db);
</pre>

Oso Oluwafemi Ebenezer 4-Dec-14 10:27am

At first look, this code looks clean! So are you not receiving the sent file in directory "nhan_vien"? And besides, is directory "nhan_vien" existing?

Member 10390715 4-Dec-14 10:31am

"nhan_vien" is a folder I store image. It is wamp/www/nhan_vien. This code is only use with the same machine running wampserver.

Oso Oluwafemi Ebenezer 4-Dec-14 10:35am

The INSERT INTO statement is wrong, it should be INSERT INTO table_name(column1, column2) VALUES (value1, value2)

Member 10390715 4-Dec-14 10:37am

Yeah, but It also works :). I will remember this.

Oso Oluwafemi Ebenezer 4-Dec-14 10:38am

No, it's not working! If you do "echo mysql_error();" you will see your error!

Oso Oluwafemi Ebenezer 4-Dec-14 10:37am

And are the uploaded file appearing inside "nhan_vien"

Member 10390715 4-Dec-14 10:39am

yes.

Oso Oluwafemi Ebenezer 4-Dec-14 10:40am

Then the problem is not with the upload but with you MYSQL statements

Member 10390715 4-Dec-14 10:43am

No,This code is only use with the same PC running wampserver. I want upload image to nhan_vien from another PC.

Oso Oluwafemi Ebenezer 4-Dec-14 10:45am

If it works on the "server machine" it should work from anywhere in the world!

Member 10390715 4-Dec-14 10:46am

Really? I will try it. I answer you tomorrow.

Oso Oluwafemi Ebenezer 4-Dec-14 10:51am

Ok!

Member 10390715 4-Dec-14 10:55am

I'm very excited. I will check and answer you tomorrow. Good night.

Oso Oluwafemi Ebenezer 4-Dec-14 10:46am

When you upload a file, what values are you getting in the database

Member 10390715 4-Dec-14 10:52am

No, it does not add to the database mysql. For example, first my image store in disk D. When I upload, It appear on wamp/www/nhan_vien. And I think in another PC, It not work.I'm not sure, but I think so.

Oso Oluwafemi Ebenezer 4-Dec-14 10:55am

If the file is now stored in "www/nhan_vien" then it will work even from a computer 100 million miles away!

Member 10390715 4-Dec-14 11:00am

Hehehe, maybe, I just learned PHP by myself about 2 months. There are many things I do not know. I will check and answer you. Thanks.
Good night.

Member 10390715 4-Dec-14 10:23am

I mysql, I set default Hinh = null and if I don't add image to Hinh, it not error.

2 solutions

Solution 2

first of all you need to create a database. Then you store the id or name of the images that you give in your html document.Before we try to sent to the server we had to connect server and database by

$conn = mysql_connect("hostname","mysql name", "mysql password","databasename");

mysql_select_db($conn, "db name");//or ("db name");
mysql_query("SELECT*FROM ´db table name´ ´image´="'.$imageid.'" ");
Afterthat you can sent those images from your server to the client vise versa.

Posted 13-Jul-18 0:32am

Member 13910296

Comments

CHill60 13-Jul-18 6:40am

The question was asked and answered over 3 and a half years ago! Moreover, the poster of solution 1 spotted the problem and the OP accepted the answer meaning it solved the problem

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Oso Oluwafemi Ebenezer · Accepted Answer · 2014-12-04T04:42:00

Solution 1

The INSERT statement is wrong, it should be

SQL

INSERT INTO table_name(column1, column2) VALUES (value1, value2)

Posted 4-Dec-14 4:42am

Oso Oluwafemi Ebenezer

How to upload image from client to server using PHP?

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How to upload image from client to server using PHP?

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