.net technique php 74 .net november 2007 Knowledge needed PHP Requires PHP Project time 30 minutes Mention object-oriented programming to most web developers and you usually get the same effect: blood will drain from their faces and their eyes will glaze over. Thatquoteright0s a shame, because OOP is a hugely useful technique in anyonequoteright0s toolbox. The reason people are usually afraid of it is because OOP has long been the realm of “serious programmers”, as opposed to “dabblers”. Given that many web developers see PHP as a neat hack to add functionality around the beautiful interface theyquoteright0ve designed, you can imagine why OOP gives them jitters. In this tutorial, I want to show you how object orientation works with the minimum amount of theory and the maximum amount of practical, hands-on code that you can get using straight away. So letquoteright0s go OOP! Understanding objects An object is a bundleof data and functions that you get to define. From a web developerquoteright0s point of view, the most common object type will be probably be a Page, which has some content and maybe a standard header and footer if your site has a uniform design. First, youquoteright0re going to build a Page object that makes it easy to create new pages on your site. This first object is going to hold one variable (the title), as well as two methods. A method is the fancy name for a function when itquoteright0s inside an object. Create a file, call it “classes.php” and give it this content: PHP object-oriented programming Paul Hudson takes the blood, sweat and tears out of mastering object-oriented programming, a powerful technique thatquoteright0s otherwise known as OOP
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