My test  skeleton of PEAR DB commands :
$conn =DB::connect("pgsql://... etc
$stmt= $conn->query($_POST[query]);
$cols= $stmt->tableInfo();
       for ($i=0; $i< $ncols; $i++){
       $col_name[$i]= $cols[$i][name];
       $type[$i]= $cols[$i][type];
       $len[$i]= $cols[$i][len];
       $flags[$i]= $cols[$i][flags];

while( ($r= $stmt->fetchRow())){
       . . . etc
THE PROBLEM: fetchRow() returns Null. If you interchange the order of fetchRow() with tableInfo() no problem arises.
This is unacceptable if you want to format a query result
using information obtained from tableInfo(): you would have
to re-submit the same (possibly large) query again!

MY PHP config.nice file:
'./configure' \
'--with-apxs=/usr/local/apache/bin/apxs' \
'--with-mysql=/usr' \
'--with-pgsql=/usr/local/pgsql' \
'--with-interbase=/opt/interbase' \
'--with-db3' \
"$@"

Celio Guimaraes 
celio@ic.unicamp.br
Dec 9, 2002