Re: Stuck! GDBM not listing my whole database!?

On Wed, 5 Jul 2000, Cabel Sasser wrote: > Hello PHP People, > > I'm new to this lovely language, and I'm growing quite attached. BUT.. ;) > > I have a GDBM database of around 50 or so key/value pairs. I know all > these pairs exist because I can see them in the binary database file, > AND I can read the values on them when I name the exact key I wish to > read. > > HOWEVER, when I walk through the directory to list all the contents, > it only lists 7 of them, and my listing loop quits early having > reached the apparent "end". > > Why would GDBM and/or PHP not be listing the whole database? > > Here's my listing routine: > > $dbm = dbmopen("/www/db", "r"); > $key = dbmfirstkey($dbm); > while ($key) { > print $key."<BR>"; > $key = dbmnextkey($dbm, $key); > } > > After the loop exits, $key = "". What's really weird is if I place a > SECOND dbmnextkey() after the first, it'll move on happily. > > It's almost like it's actually finding a $key named "" (nothing), > which is triggering the end of the loop early even though there's > really more data to be discovered. > > dblist() returns "This is GDBM version 1.8.0, as of May 19, 1999." > > SO MANY THANKS in advance. This is the only thing that's tripping me > up in my PHP adventure! You probably do have a empty string key in there. Not entirely sure how to deal with that. Perhaps try something like: while(dbmexists($dbm,$key)) { $key = dbmnextkey($dbm,$key); } Or just code around it. Make your loop quit only if you get 2 consecutive false returns from dbmnextkey() -Rasmus