Use PHP to upload images to the database

Today we will teach you how to upload images to the MYSQL database using PHP. In this tutorial, we need to create three php files: readdir. php
　

Today we will teach you how to upload images to the MYSQL database using PHP. In this tutorial, we need to create three php files:

Readdir. php-code for storing images in the database
Image. php-code for displaying the actual image
View. php-show how you call the image code in the database

1. create a database

Create table 'images '(
'Imgid' int not null AUTO_INCREMENT,
'Sixfourdata' longtext not null,
Primary key ('imgid ')
);
READDIR. PHP

Specific content:
$ Dbcnx = mysql_connect ("localhost", "username", "password ");
Mysql_select_db ("base64imgdb ");
?>
'Open a directory
"./"
The 'readdir. php file is located in this directory:
$ Path = "./";
$ Dir_handle = opendir ($ path) or die ("Unable to open directory $ path ");

The following is a difficult part. you need to take a good look at this: classify images and read some of the data in use.

Fopen

'Conversion

Base64_encode

'Insert to table

While ($ file = readdir ($ dir_handle )){
$ Filetyp = substr ($ file,-3 );
If ($ filetyp = 'GIF' OR $ filetyp = 'jpg '){
$ Handle = fopen ($ path. "/". $ file, 'r ');
$ File_content = fread ($ handle, filesize ($ path. "/". $ file ));
Fclose ($ handle );
$ Encoded = chunk_split (base64_encode ($ file_content ));
$ SQL = "INSERT INTO images SET sixfourdata = '$ encoded '";
Mysql_query ($ SQL );
}
}
?>

Close the set directory and process it:

Closedir ($ dir_handle );
Echo ("complete ");
Mysql_close ($ dbcnx );
?>

Code for reading images: IMAGE. PHP
This code is difficult. let's take a look.

$ Dbcnx = mysql_connect ("localhost", "username", "password ");
Mysql_select_db ("base64imgdb ");
?>
The image. php code used for reading images? Img = x:
$ Img = $ _ REQUEST ["img"];
?>
Then we need to connect to the database and read
$ Result = mysql_query ("SELECT * FROM images WHERE imgid =". $ img ."");
If (! $ Result ){
Echo (" Request error: ". mysql_error ()."");
Exit ();
}
While ($ row = mysql_fetch_array ($ result )){
$ Imgid = $ row ["imgid"];
$ Encodeddata = $ row ["sixfourdata"];
}
?>

Mysql_close ($ dbcnx );
Echo base64_decode ($ encodeddata );
?>

Here we want to understand the base64-encoded image data format.

"Let's take a look at the specific picture! "VIEW. PHP

Image. php? Img = 1

Image. php? Img = 357



Let's look at a complete example!

Readdir. php:
###############################
# DB CONNECTION
# CHANGE THESE VALUES
###############################
$ Dbcnx = mysql_connect ("localhost", "username", "password ");
Mysql_select_db ("base64imgdb ");

$ Path = "./";
$ Dir_handle = opendir ($ path) or die ("Unable to open directory $ path ");
While ($ file = readdir ($ dir_handle )){
$ Filetyp = substr ($ file,-3 );
If ($ filetyp = 'GIF' OR $ filetyp = 'jpg '){
$ Handle = fopen ($ file, 'r ');
$ File_content = fread ($ handle, filesize ($ file ));
Fclose ($ handle );
$ Encoded = chunk_split (base64_encode ($ file_content ));
$ SQL = "INSERT INTO images SET sixfourdata = '$ encoded '";
Mysql_query ($ SQL );
}
}

Closedir ($ dir_handle );
Echo ("complete ");
Mysql_close ($ dbcnx );
?>
Image. php:
$ Dbcnx = mysql_connect ("localhost", "username", "password ");

Mysql_select_db ("base64imgdb ");

$ Img = $ _ REQUEST ["img"];

$ Result = mysql_query ("SELECT * FROM images WHERE imgid =". $ img ."");

If (! $ Result ){

Echo (" Error configurming query: ". mysql_error ()."");
Exit ();
}
While ($ row = mysql_fetch_array ($ result )){
$ Imgid = $ row ["imgid"];
$ Encodeddata = $ row ["sixfourdata"];
}
Mysql_close ($ dbcnx );
Echo base64_decode ($ encodeddata );
?>
And view. php (I shouldnt need to post this ..)


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