1 PHP design pattern---factory pattern

Basic design patterns

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1. Factory pattern

<code><span>//如果很多页面都 new 一个Database 对象，那么一旦Database作出改动，则需要在多个</span><span>//页面进行相应的改动。而用工厂模式，只需要改动一个地方。</span><span><?php </span><span>namespace</span><span>IMooc</span>;

<span><span>class</span><span>Factory</span>
{</span><span>static</span><span><span>function</span><span>createDatabase</span><span>()</span>
    {</span><span>$db</span> = <span>new</span> Database();
        <span>return</span><span>$db</span>;
    }
}</span></code>

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The above has introduced 1 PHP design pattern---factory pattern, including aspects of it. I hope it will be helpful to friends who are interested in PHP tutorials.