Category Archives: Tutorial/Guide

Use of MySQL ‘GROUP BY’ to Derive Statistics

Posted on November 6, 2008 by dimuthu

We use ‘GROUP BY’ SQL construct to query the data with aggregating some rows according to a field. For an example say if your blog database store your blogs in a table call ‘Blog’ and it has ‘Date’ as a … Continue reading →

Posted in DataServices, drupal, SQL, Tutorial/Guide | Tagged , , | Leave a comment

Sending Custom SOAP Headers in PHP Web Services

Posted on November 3, 2008 by dimuthu

Few months ago, I blogged about How you represent custom headers in a WSDL. In there I mentioned, WSF/PHP is going to support sending and handling custom SOAP headers with the 2.0 release which was released early September. Today I … Continue reading →

Posted in php, Tutorial/Guide, web services, WSDL, wsf/php, wso2, xml schema | Tagged , , , , , , , | 6 Comments

Triple Equal Operator and NULL in PHP

Posted on October 31, 2008 by dimuthu

A PHP variable has a value and a type. In most practice cases we consider only about the value of the variable. But there may be times we have to consider the type of the variable as well. For an … Continue reading →

Posted in php, Tutorial/Guide | Tagged , , , | 9 Comments

Sending And Handling Faults From PHP Web Service

Posted on October 30, 2008 by dimuthu

Web Service can response with a Fault in 2 occasions. Fault send by the web service framework. (E.g. Invalid authentication, invalid signature found) Fault send by the user business logic. There is a slightly difference in the content of SOAP … Continue reading →

Posted in Tutorial/Guide, web services, WSDL, wsf/php, wso2 | Tagged , , , , | 8 Comments

ScreenCast – How to Consume a Web Service Using WSF/PHP

Posted on October 29, 2008 by dimuthu

You can watch a Screencast on How to Consume a Web Service Using WSF/PHP from WSO2 Oxygent Tank developer portal. There I have presented the steps you need to follow to consume a web service. I choose US National Digital … Continue reading →

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WSF/PHP WSDL Mode – Handling XML Schema Arrays

Posted on October 25, 2008 by dimuthu

In XML Schema we declare an array or a multiple occurrence of a schema element by setting its maxOccurs attribute to a value greater than 1 or to the value “unbounded” in a case of no maximum boundary. <xs:element maxOccurs=”unbounded” … Continue reading →

Posted in Tutorial/Guide, WSDL, wsf/php, wso2, xml, xml schema | Tagged , , , , , , | Leave a comment

WSDL Generation From PHP – Using Different Names in WSDL and PHP Code

Posted on October 23, 2008 by dimuthu

PHP2WSDL feature of the WSF/PHP allows you to generate the WSDL for your service when you access the URL formed by adding “?wsdl” to the service URL ( or you can use service URL + “?wsdl2” to access the wsdl … Continue reading →

Posted in Tutorial/Guide, web services, WSDL, wsf/php, wso2, xml, xml schema | Tagged , , , , , , , , , | Leave a comment

Coding Schema Inheritance in PHP

Posted on October 21, 2008 by dimuthu

If you are thinking of writing a web service or a client based on a WSDL, you can easily generate the code for PHP or any other language using tools likes wsdl2php or other wsdl2xxx category tools. Then you don’t … Continue reading →

Posted in Tutorial/Guide, web services, WSDL, wsf/php, wso2, xml, xml schema | Tagged , , , , , , , , , , , | 2 Comments

Demo on Consuming Flickr, Yahoo and Amazon Search Web Services

Posted on October 19, 2008 by dimuthu

WSF/PHP Demo Site contains number of sample web service applications which demonstrate the different features of WSF/PHP. From these demos, Mashup Search Demo demonstrate  the use of  publicly available web services to create a search mashup in your web site. … Continue reading →

Posted in REST, Tutorial/Guide, web services, wsf/php, wso2 | Tagged , , , , | Leave a comment

Write RESTful Services in C

Posted on October 18, 2008 by dimuthu

You can write REST as well as SOAP web services using Apache Axis2/C web services framework. There you can make existing Axis2/C web services RESTful just by providing the URL patterns and the HTTP methods to each operation in  the … Continue reading →

Posted in REST, RESTful, Tutorial/Guide, web services | Tagged , , , , , | 8 Comments