I've written a new series of examples to teach Object Oriented Programming in PHP ... taking tables in a restaurant as my example, as we all have to eat. Calculating things like the number of people who can sit at a table (that's not as straightforward as you think) and hiding that calculation in the class code. Adding in round tables as well as rectangular ones, where some calculations vary but other remain the same.
Here is the sequence of examples:
•
First object / test case example
•
Using an array of objects
•
Creating objects from data in file
•
Using a factory method to make the objects
•
Objects of different (but similar) types
•
Comparing objects, converting to strings etc
Tables in a restaurant .. camp sites .. twitter messages .. sales contacts .. helicopters .. web connections .. gas bills .. books .. all of these and just about anything else cn be well handled through an object oriented approach such as the one shown in this series of examples. Each of them will need to have objects set up ("constructed") from data, and each will have values saved in and gotten out ("properties" or "attributes"). Calculations will be necessary on some attributes - these
will vary - but many attributes wil be just stored and retreived ...
Our
Object Oriented Programming in PHP course covers the techniwuers for designing and writing Object Oriented programming, and covers how you do it in PHP as well. Follow the link to find the upcoming dates!
(written 2013-04-28)
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
H108 - Objects in PHP [67] Object Oriented Programming in PHP - (2004-09-29)
[124] PHP v Java - (2004-11-20)
[205] PHP5 lets you say no - (2005-02-07)
[343] Should I use structured or object oriented? - (2005-06-10)
[421] Don't repeat code - use loops or functions - (2005-08-21)
[485] North, Norther and Northest - PHP 5 Objects - (2005-11-04)
[656] Think about your design even if you don't use full UML - (2006-03-24)
[720] Planning a hotel refurb - an example of a Gant chart in PHP - (2006-05-14)
[836] Build on what you already have with OO - (2006-08-17)
[1027] Cue the music, I'm happy. - (2007-01-09)
[1153] Object Oriented Model - a summary of changes from PHP4 to PHP5 - (2007-04-18)
[1217] What are factory and singleton classes? - (2007-06-04)
[1535] OO PHP demonstration - comparing objects and more - (2008-02-08)
[1682] Accounts in PHP - an OO demo - (2008-06-19)
[1819] Calling base class constructors - (2008-10-03)
[1820] Sorting objects in PHP - (2008-10-04)
[1925] Introduction to Object Oriented Programming - (2008-12-06)
[2160] PHP - getclass v instanceof - (2009-05-07)
[2169] When should I use OO techniques? - (2009-05-11)
[2171] Cleaning up redundant objects - (2009-05-11)
[2172] PHP4 v PHP5 - Object Model Difference - (2009-05-11)
[2380] Object Oriented programming - a practical design example - (2009-08-27)
[2434] Abstract classes, Interfaces, PHP and Java - (2009-10-03)
[2435] Serialization - storing and reloading objects - (2009-10-04)
[2632] Shipping a test harness with your class in PHP - (2010-02-12)
[2641] Object Oriented Programming in PHP - (2010-02-19)
[2680] Static class members in PHP - a documented example - (2010-03-16)
[2717] The Multiple Inheritance Conundrum, interfaces and mixins - (2010-04-11)
[2741] What is a factory? - (2010-04-26)
[2774] PHP - Object Oriented Design in use - (2010-05-21)
[2921] Does copying a variable duplicate the contents? - (2010-08-14)
[2922] Getting the OO design write - with PHP a example - (2010-08-14)
[3142] Private and Public - and things between - (2011-01-22)
[3210] Catchable fatal error in PHP ... How to catch, and alternative solutions such as JSON - (2011-03-22)
[3211] Computer Graphics in PHP - World (incoming data) to Pixel (screen) conversion - (2011-03-24)
[3607] Designing your application - using UML techniques - (2012-02-11)
[3608] Design Patterns - what are they? Why use them? - (2012-02-12)
[3609] How do classes relate to each other? Associated Classes - (2012-02-12)
[3840] Autoload in PHP - (2012-08-17)
[3841] Copying, duplicating, cloning an object in PHP - (2012-08-18)
[3843] Caching Design Patterns - (2012-08-20)
[3953] Objects in PHP - Revision - (2012-12-16)
[4057] stdClass in PHP - using an object rather than an associative array - (2013-04-02)
[4356] Object factories in C++, Python, PHP and Perl - (2014-12-19)
[4366] Changing what operators do on objects - a comparison across different programming languages - (2014-12-26)
[4626] Singleton design pattern - examples and uses - (2016-01-20)
[4627] Caching results in an object for efficiency - avoiding re-calculation - (2016-01-20)
[4628] Associative objects - one object within another. - (2016-01-20)
Some other Articles
Palty or Parliamentary?Web site - fully back!Further recent PHP examplesA comment on comments in PHPLearning about Object Orientation in PHP - a new set of examplesSplitting the difference with PHPSetting up strings in PHPPassing variable between PHP pages - hidden fields, cookies and sessionsEven early on, separate out your program from your HTML!Arrays in PHP - contain different and even mixed data types