[MS4W-Users] Missing functions/attributes in MapScript (PHP)

[Jeff McKenna]

Hi Jens,

Thank-you for the complements.

In the MS4W 5.0-beta2 announcement I mentioned that I had created a 
Migration Guide on the wiki, that I recommend that you take the time to 
go through in detail: https://ms4w.com/trac/wiki/MigrationGuide5.x

There you will find a section on SWIG MapScript, that also includes 4 
working PHP scripts for MS4W 5.0-beta2, with a note about changes to 
setting metadata using the new hashTableObj way.  I also now added a 
working example for *getting* a metadata value (see the last 'echo' 
command below), such as:

<?php
   //set metadata using the new 'metadata' hashTableObj keys and value 
directly
   $oWMSLayer->metadata->set("wms_name", "popplace");
   $oWMSLayer->metadata->set("wms_title", "Cities");
   $oWMSLayer->metadata->set("wms_srs", "EPSG:3978");
   $oWMSLayer->metadata->set("wms_server_version", "1.1.1");
   $oWMSLayer->metadata->set("wms_format", "image/png");
   //get metadata using the new 'metadata' hashTableObj keys directly
   echo $oWMSLayer->metadata->get("wms_title");
?>

As always, I kindly ask you that you add to that wiki page, by adding 
your examples and notes so others can learn from your tips. (it's a wiki 
on purpose, to hopefully get everyone editing it and adding migration 
examples, as you modify your mapfiles for MS4W 5.0).

I hope this brings you out of the 'darkness', ha, and that you have a 
nice, quiet weekend.


Thank-you for using MS4W.
"MS4W: open doors as well as windows"

-jeff


-- 
Jeff McKenna
GatewayGeo: Developers of MS4W, MapServer Consulting and Training
co-founder of FOSS4G
http://gatewaygeo.com/





On 2022-01-28 6:48 a.m., Gramenz, Jens via MS4W-Users wrote:
> Dear list and especially dear Jeff,
> 
> thank you for creating and supporting MS4W. Although MS4W doesn't 
> completely fit our demand, it is marvelous how easy it is to set it up. :)
> 
> I wanted to have a look at the new Mapserver/PHP-Combo and tried to make 
> one of our projects work with it. After fixing some deprecations here 
> and there, I encountered some difficulties with MapScript I was not able 
> to circumvent. :(
> 
> When switching to PHP7 I had to include the php_mapscript.dll and (I 
> guess that was the SWIG-Version then?!) a mapscript.php.
> 
> Sven brought this up in a message in december. This time there is no 
> more mapscript.php and if I include the old one it raises an error, that 
> the classes are already there, which is plausible. But if I don't it 
> seems that there is something (i.e. some functions and attributes [e.g. 
> mapObject->numLayers]) missing. But in general MapScript is loaded and 
> does work.
> 
> Since I wasn't sure if it is a problem with my software setup, I used a 
> plain version of MS4W (5beta2) on another machine to reproduce it. Took 
> about 5 Minutes to unzip and about 5 seconds to make it work... Wow!
> 
> An example to reproduce my problem is to add the following lines to 
> quickmap.php at line 20 and comment the rest of the file.
> 
> $layer = $oMap->getLayer(0);
> 
> echo "Layer: ".$layer->name."<br>";
> 
> print_r(get_object_vars($layer->metadata));
> 
> echo $layer->metadata->wms_title."<br>";
> 
> $layer->getMetaData("wms_title");
> 
> Getting the layer and printing the name ("ocean") does work. The 
> metadata actually is a hashTableObj, but get_object_vars gives an empty 
> array. Directly accessing the attribute just returns NULL. Calling 
> getMetaData() like we used to leads to the "Fatal error: Uncaught Error: 
> Call to undefined method layerObj::getMetaData()" although is it 
> mentioned in both the SWIG and PHP MapScript API.
> 
> Don't know if these a bugs or features. =) Could it be that there have 
> been some changes in the code that are not yet documented? Maybe one of 
> you can bring some light into the darkness?!
> 
> Kind regards,
> 
> Jens
> 
> 
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