Reply To: Unable to write multiple values ACF user field back to DB

• jhagee

• September 22, 2018 at 6:52 am

Update:
I was able to write the string: ‘a:1:{i:0;s:2:”57″;}’ back to the database.
And then tried: ‘a:2:{i:0;s:2:”55″;i:1;s:2:”57″;}’ and also ‘a:3:{i:0;s:2:”55″;i:1;s:2:”57″;i:2;s:2:”60″;}’, they worked too.
so maybe that is the way I need to fix this.
Any suggestions for the most efficient way to code this?

To recap:

I pull the string from the database, may be 0 characters, on up… in that string array.
I’ll need to add a new one to the end that and then put it back into the database.

So:

$old_current_mentees = ‘a:1:{i:0;s:2:”55″;}’ or ‘a:2:{i:0;s:2:”55″;i:1;s:2:”57″;}’ or ‘a:3:{i:0;s:2:”55″;i:1;s:2:”57″;i:2;s:2:”62″;}’; etc
add new_mentee = a:2:{i:0;s:2:”55″;i:1;s:2:”68″; to the string array
make sure it has the proper wrappers

$new_current_mentees = $old_current_mentees + new_mentee

write it to a variable to upload back into the DB.

Any suggestions for the most efficient way to code this? Functions to use? Sample code?

Thanks!