Reproduce bug:
--------------
-Create a table with a field name "exit". 
-Run a script like this:
<?php
mysql_connect(SQL_HOST, SQL_USER, SQL_PASS);
mysql_select_db(SQL_DB);
echo "still allive";
$result=mysql_query("select * from table");
while ($row=mysql_fetch_array($result)) {
    if ($row[exit] == "something") {
          echo "do something"; }
    else {
          echo "something else"; }
}
echo "dead allready";
?>

The problem is, that when you do a if statement on a 
$row[exit], then the php script is stoped as if you where calling "exit()";
It's only happening in a if statement with a MySQL field called exit. 

Configure line:
---------------
'./configure' '--with-mysql=/usr/local/mysql' '--with-xml' '--enable-track-vars' '--with-apache=/usr/ports/distfiles/apache_1.3.19' '--with-gd=/usr/ports/distfiles/gd-2.0.1' '--enable-ftp' '--enable-bcmath' '--with-jpeg-dir=/usr/local/lib' '--with-freetype-dir=/usr/local/lib' '--with-png-dir=/usr/local' '--with-zlib-dir=/usr/include' '--with-gettext' '--with-imap=/usr/ports/distfiles/imap-2001a'