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Where can I find a very comprehensive guide to programming client webservices? I find there is very little in books, I have both your books on PHP, but none cover the topic to an extent that I can find solutions to the problems. Most of the information out there, and in your books, is very basic.

In the "PHP Advanced" book you have a small sample on how to create a web service, but you don't show how to create the client, the WSDL, etc.


This is a topic that could be expanded on, the lack of information is amazing. I have tried nusoap and it doesn't seem to work either.


I am running "PHP Version 5.6.5", and trying to connect to a webservice and I keep getting errors:


Fatal error: Uncaught SoapFault exception: [WSDL] SOAP-ERROR: Parsing WSDL: Couldn't load from 'http://www.thawedbuffalosolutions.com/AuthenticationWS/AuthenticationService.wsdl': failed to load external entity "http://www.thawedbuffalosolutions.com/AuthenticationWS/AuthenticationService.wsdl" in C:\Apache24\htdocs\dalbum-web\DalbumAuthentication.php:45 Stack trace: #0 C:\Apache24\htdocs\dalbum-web\DalbumAuthentication.php(45): SoapClient->SoapClient('http://www.thaw...' Array) #1 {main} thrown in C:\Apache24\htdocs\dalbum-web\DalbumAuthentication.php on line 45


The error always comes from this line:


   $client     = new SoapClient($wsdl, $options);


Anyway, I wish there was more information in your books about this very important topic.


Thank you,



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The first thing you need to do is place the instantiation of the SoapClient object within a try catch block. This will help you problem solve the issue you’re having with your script.


There is a lot of information online about writing services using PHP. I have no idea where you are in terms of you level of PHP knowledge/learning and I could be doing you a huge disservice by stating get good at searching for information/tutorials online.


I had a quick search on google and I got a huge number of useful resources for tutorials; sitepoint seems to have a pretty good 2 part series: creating web services using SOAP and PHP.


However, services using SOAP kind of went out of favour back in the day and most developers use REST these days.


Personally, I think it’s always good to work through Larry’s books, but after you’ve finished with SOAP I would recommend having a look at creating REST APIs using PHP. There is a tonne of information online.

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