Installation shows always "A database error has occurred: An unknown database connection error has occurred"

When I am installing OCS Version 2.3.6.0 it always shows -

Errors occurred during installation:
A database error has occurred: An unknown database connection error has occurred.

Please help me to find out the actual problem
I have test my database connection with a php script and it is ok, I am using Mysql version 5.6.23 and PHP Version 5.4.35

Hi @belalkucse,

Have you seen this topic in the old forum: https://pkp.sfu.ca/support/forum/viewtopic.php?f=8&t=5848

Let us know if that helps.

Cheers,
Bruno