PHP mysql query is not executing

[JnrJnr]

All other mysql queries execute except this one:

$setcurrent = mysqli_query("UPDATE blog SET currentblog = (id = '55')") or die('Error, failed to set current blog');

Can anyone help me with this?

[Dormilich]

that’s not a mysql query, that’s a mysqli query and as you can see in the manual, the function call differs.

besides that, turn error reporting and error display on when debugging.