After upgrading PHP from 4.0b2 to 4.02b3, the following MySQL query (which has not changed) no longer works:

select x.name, x.place, y.color, y.shade from locations as x, prefs as y 

The error returned is: 

Warning: x not found in MySQL result index 7 in mysql.php3 on line 26

Warning: y not found in MySQL result index 7 in mysql.php3 on line 26

Line 26 of mysql.php3 is:

$result = mysql_result($qhandle,$row,$field);

This has not changed either -- it worked yesterday :-)

The problem is reproducible, and is affecting all my php scripts which contain queries structured in the same fashion.

Config/Build options have only changed in one respect from 4.0b2 to 4.0b3; I had to compile with --disable-inline to work around a virtual memory exhaustion problem.

Here's the config line I used to build PHP:

--with-mysql=/usr/local/mysql \
        --with-apache=../apache_1.3.9 \
        --enable-track-vars \
        --disable-inline \
        --with-config-file-path=/var/www/conf