insert blob not working (mysql_real_escape_string) - mysql-real-escape-string

Question

I am trying to copy image blobs from one table to another, and it is not working, since the mysql_real_escape_string () is no longer available. The special characters in the blob are blocking the insert and I can't figure out how to correct this. Your help would be appreciated. Thank you.
foreach ($dbh->query($query_images) as $images-1) {
$ins = "INSERT INTO images-2 SET image_blob='".images-1['image_blob']."'";
$dbh->exec($ins);
}

Answer 1

First you have:
$ins = "INSERT INTO images-2 SET image_blob='".images-1['image_blob']."'";
when you likely want:
$ins = "INSERT INTO images-2 SET image_blob='".$images-1['image_blob']."'";
but that could just be a typo in your post.
You can do this in pure MySQL and not have to iterate through each row in the images-1 table:
INSERT INTO images-2 (image_blob) VALUES (SELECT image_blob FROM images-1)
If it is some kinda of escaping problem I would suggest going with the PDO stuff in PHP:
$pdo = new PDO('mysql:host=hostname;dbname=db', $user, $pass);
foreach($dbh->query($query_images) as $images-1) {
$sth = $pdo->prepare("INSERT INTO images-2 SET image_blob=?")
$sth->execute([$images-1['image_blob']]);
}
I did not test any of this code but just put it together based on documentation and experience.