📄 intro.objaggregation.html

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head>  <title>Introduction</title>  <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="book.objaggregation.html">Object Aggregation</a></div> <div class="next" style="text-align: right; float: right;"><a href="objaggregation.examples.html">Examples</a></div> <div class="up"><a href="book.objaggregation.html">Object Aggregation</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="intro.objaggregation" class="preface">  <h1 class="title">Introduction</h1>  <div class="warning"><b class="warning">Warning</b><p class="simpara">This extension is<em class="emphasis">EXPERIMENTAL</em>. The behaviour of this extension鈥攊ncludingthe names of its functions and any other documentation surrounding thisextension鈥攎ay change without notice in a future release of PHP.This extension should be used at your own risk.</p></div>  <p class="para">   In Object Oriented Programming, it is common to see the composition of   simple classes (and/or instances) into a more complex one. This is a   flexible strategy for building complicated objects and object   hierarchies and can function as a dynamic alternative to multiple   inheritance. There are two ways to perform class (and/or object)   composition depending on the relationship between the composed   elements: <em class="emphasis">Association</em> and   <em class="emphasis">Aggregation</em>.  </p> </div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="book.objaggregation.html">Object Aggregation</a></div> <div class="next" style="text-align: right; float: right;"><a href="objaggregation.examples.html">Examples</a></div> <div class="up"><a href="book.objaggregation.html">Object Aggregation</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>

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