Going back through my notes on how I installed PHP and mapscript I
quoted you in my notes:
"Well, by downloading and using the PHP source of the same version as
what is installed on your machine the build worked fine, but there is
a small possibility that you may still encounter intermittent crashes
at runtime because the PHP headers are customized to match your build
options by PHP's configure, and you didn't use the headers that match
exactly your PHP build options. Options such as the version of REGEX
or GD used by PHP have an impact on MapScript."
I guess this is what you meant...
I think I need to re-examine this install.
Daniel Morissette wrote:
Are you using PHP as an Apache module or as a CGI?
If using PHP as a module then what you got could be the symptoms of a
memory trashing problem which over time corrupts/kills all Apache
child processes.
The easy workaround would be to switch to using PHP as a CGI, this way
every request gets a new fresh process to work with and you avoid the
problem.
However if possible we should try to identify the source of the
problem, and if it's a bug in MapServer then try to fix it.
First, the usual suspects: GD... if your PHP has GD enabled, then is
it using the same copy of GD as PHP MapScript? If PHP uses its bundled
GD that could be a problem because MapScript likely uses the system GD
and you have two different versions of GD used in the same process.
It's important that both PHP and MapServer/MapScript use the system GD.
If you are convinced that conflicting GD versions is not the cause of
the problems then I'd suggest that you try again with MapServer 5.0.
If you can reproduce the bug with 5.0 then please file a ticket in
Trac with as much detail as you can, including a script + mapfile to
reproduce.
Daniel
Bill Thoen wrote:
I've been experimenting with PHP/mapscript and came across an example
of how to display points dynamically (it's in the wiki at
http://mapserver.gis.umn.edu/cgi-bin/wiki.pl?PHPMapScriptAddPoint),
and so I wanted to try it.
It seems to work for several points in a row (basically moving a
single point to the next place I click) but after about 10 clicks or
so, the application dies with a loadLayer() error (which causes a
cascade of subsequent errors.) Worse, I discover that when this
happens NONE of my other PHP/mapscript applications will work, even
though they've been working fine and use other data sources and map
files. I have to reboot my machine to get them to work again.
I've added a call to $pt->free() following the line with $pt->draw()
in it and fixed the parameter list in click2map() to include the
$map->extent, but that doesn't seem to cure it.
I'm using MapServer 4.10.0 and I think mapscript 4.8, and this is all
running on Fedora Core 5 Linux machine.
Does anyone have any idea what's happening and how I can correct it?
TIA,
- Bill Thoen
