Rename Images with php and database

Question

Sorry, I did not know how to give it a better name and that´s my first thread here.

The problem I have is... I have a bunch of images that have filenames all in this syntax:

ABC_1234-sometext.jpg

Just renaming it in php would not be a big deal but what I want is, I want to get the

1234

which is unique for each image (let´s call it products_ean) and do a SELECT query in my database which gives me back a different ID poducts_id) for each image which is also unique.

So what I want is to get

ABC_1234-sometext.jpg

into

56789.jpg

Where as the numbers are related by the database. Does that make sense? I hope somebody could push me in the right direction.

This would be the query that result in the wanted image filename:

SELECT products_id FROM products WHERE products_ean = '.$img_name_strg.'

Answer 1

You can use the following code and amend the filename to whatever you wish.

I use round(microtime(true)) for a unique name as opposed to a DB id.

$temp = explode(".", $file["name"]);
$filename = "filename"
$newfilename =$filename . '.' . end($temp);
move_uploaded_file($file["tmp_name"], $target_dir . $newfilename);

Don't forget to check if your file has been uploaded.

Answer 2

Try the below code.

$files = glob($dir.'/*'); //get all images
$i=1234;
    foreach($files as $file){
        if(is_file($file)){
            copy($file,'folder/'.$i'.jpg');//copy ABC_1234-sometext.jpg to 1234.jpg
            unlink($file); //delete ABC_1234-sometext.jpg
        }
    }

Answer 3

You can create a query to fetch images clumn and change image names with new random names without changing extention. Or load them on a page then rename all with new name and update table. to get first part of images use :

$file_name = $row['img'];
$image = explode('.',$file_name);

use This to change names $image and then include their extentions

$chagedImage =$image . '.' . end($temp);

Use this value in your move_upload $chagedImage

UPDATE :

I think runing this query will do the job

function generatenewstring($lenght){
//This function creates random tokens for new name
        $token = 'qwertzuiopasdfghjklyxcvbnmQWERTZUIOPASDFGHJKLYXCVBNM0123456789';
        $token = str_shuffle($token);
        $token = substr($token, 0, 36);
        return $token;
}
$stmt = $pdo->prepare('SELECT * FROM your_table');
$stmt->execute();
$row = $stmt->fetchAll();
    $id = $row['id'];

    $image = explode('.',$row['img']);
    $extension = pathinfo($image, PATHINFO_EXTENSION);
//$image this is your old image name

    $chagedImage = generatenewstring(20) . '.' . $extension);

//$chagedImage this is your new image name

    $sql = "UPDATE your_table SET image = ? WHERE id = ?";
    $pdo->prepare($sql)->execute([$chagedImage, $id]);

Answer 4

I came up with this now. It works. But I am not sure if this will work if I have to rename a thousand images? I guess to have the query in the foreach is not a nice way to go?

$dir = '/original_file_directory';
$destination = '/destination_directory/';

$files = glob($dir.'/*'); //get all images


foreach($files as $file){
    if(is_file($file)){

        $ean = substr(basename($file), 8, 5);

        $image_query = xtc_db_query("SELECT products_id FROM products WHERE 
        products_manufacturers_model = ".$ean."");
        $image_id = xtc_db_fetch_array($image_query);
        $image_id = $image_id['products_id'];


if($image_id != '')
       copy($file,$destination.$image_id.'.jpg');
    }
}

And what if I have files that would give me identical $ean and I would have to add ..._0.jpg and ..._1.jpg for those doubles?