./configure --with-mysql=/mysql --enable-bcmath --with-gd 
            --with-xml --with-imap --with-dbm 
            --with-apxs=/apache/bin/apxs


The code before update:
  $today = date("Y-m-d H:i:00");
  $requete = "insert into table (id, date) VALUES (NULL, \"$today\")";
  $resultat = mysql_query($requete);

The result: 
  = 0000-00-00 00:00:00

After some modification:
  $requete = "insert into table (id, date) VALUES (NULL, now())";
  $resultat = mysql_query($requete);

The result: 
  = 2001-01-25 19:38:24

Conclusion:
  I think there are a incompatibility with de date format
  of mysql. I use mysql-3.23.32.