Download image from blob field to hard disk using php - php

Question

I have a mysql blob field in which our team stored an image for every record. Now I want to download all images on my hard disk through php script. A prompt response will be appreciated.
Best Regards...
Aisha

Answer 1

$result=mysql_query("SELECT * FROM test WHERE 1");
while($row = mysql_fetch_array($result, MYSQL_ASSOC)) {
$filename = rand(1, 100).'.txt';
file_put_contents('./'.$filename, $row['blob']);
}
This is working (tested).
It wil save the file under a random filename (1-100.txt).
You can change the filename by changing $filename.
And here is a simple sample MySQL-table with 2 demo files with content Test #1 and Test #2:
CREATE TABLE IF NOT EXISTS `test` (`blob` blob NOT NULL) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO `test` (`blob`) VALUES(0x5468697320697320746573742023312e), (0x5468697320697320546573742023322e);

Answer 2

you can use file_put_contents,
fetch rows from your database and foreach row write blob/data to file
Error in Writing to Image file from PHP
http://php.net/manual/en/function.file-put-contents.php

Answer 3

You can try this also........
function save_file($file_id, $target_folder) {
$result = $DB->get_file($file_id);
$file_content = $result->fields['your_file_content_field'];
$name = $result->fields['name'];
/* Decode only if the file contents base64 encoded
* before inserting to database.
*/
$file_content = base64_decode($file_content);
return file_put_contents($target_folder.'/'.$name, $file_content);
}