How to retrieve mySQL LONGBLOB image in PHP

Question

Could someone help me with issue of selecting an image from mySQL(running on CentOS) in PHP.

I do have a field: ImageBlob (LONGBLOB) scanned image is stored from 4D(fourth dimension) application and data on the field looks like: 0x85DA0000789C84B8739028CDB6E...

I have tried to retrieve it on my website in 100s of different ways(decode_64, various MIMEs etc.), but image doesn't appear, what I was able to get is:

1. blank white screen
2. black whole screen
3. string: ??x???s?(???m?m?m?m???????.....
4. string: hdoAAHichLhzkCjNtubdtm0bu23btm3bto....

Any ideas are welcome