Re: [PHP4BETA] php4/phplib discoveries...

What version of PHP 4.0 are you using? Beta 2 or the latest CVS's of Zend, TSRM, and PHP 4.0 Andi At 02:47 PM 10/12/99 -0400, Chad wrote:

Wish I had good news! Maybe someone can offer some analysis... I've narrowed the immediate problem down. First thing was that on line 36 in db_mysql.inc there was a dollar sign that needed escaped, which got rid of the parse error. The next problem which other have observed is that hitting the pages produces an empty query error. What I've tracked this down to is the constructor for db_mysql.inc, which looks like: /* public: constructor */ function DB_Sql($query = "") {

    $this->query($query);

} basically it just executes a query if there is an argument. So what happens is that the ct_sql.inc class calls on the database class to create a new database object with the line $this->db = new $name; where $name is the database class. When it does this, it appears that the constructor get's called and passed an empty query, which phplib then tries to execute, resulting in the error. Now why PHP4 does this and not PHP3 is something I haven't played around enough to discover, maybe someone else knows offhand. Anyway, my quickie solution was to modify the constructor so it looks like: /* public: constructor */ function DB_Sql($query = "") {

    if ($query != "") {
        $this->query($query);
    }

} Problem solved? Nope, now comes the real work! Fixing this got rid of the empty SQL error, but now the server core dumps... And this is now the task at hand. So maybe some of the knowledgable PHP4 folks can suggest a course to proceed as the logs and a backtrace don't say much at all. The error log shows: [Tue Oct 12 14:22:01 1999] [notice] child pid 13683 exit signal Arithmetic Excep tion (8) [Tue Oct 12 14:23:13 1999] [notice] child pid 13706 exit signal Segmentation Fau lt (11) [Tue Oct 12 14:23:19 1999] [notice] child pid 13685 exit signal Segmentation Fau lt (11) and dbx says: terminating signal 8 SIGFPE Which has to be the least helpfull error I've ever seen. That's all it says, nothing else! Now maybe dbx is screwey, I'll try and get gdb installed this afternoon and see what happens. But, if anyone has any other suggestions on tracking this down, I'd appreciate it! -- Chad Cunningham ccunning@math.ohio-state.edu Physicists think the real world models equations. Engineers think equations model the real world. Mathematicians fail to make the connection. -- PHP 4 Beta

--- Andi Gutmans <andi@zend.com> http://www.zend.com/