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		<title>PHP/Class/Reflection Existance - История изменений</title>
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		<updated>2026-04-05T04:40:48Z</updated>
		<subtitle>История изменений этой страницы в вики</subtitle>
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	<entry>
		<id>http://wbex.ru/index.php?title=PHP/Class/Reflection_Existance&amp;diff=60&amp;oldid=prev</id>
		<title> в 10:37, 26 мая 2010</title>
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				<updated>2010-05-26T10:37:27Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr style=&quot;vertical-align: top;&quot; lang=&quot;ru&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Предыдущая&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Версия 10:37, 26 мая 2010&lt;/td&gt;
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&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
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	<entry>
		<id>http://wbex.ru/index.php?title=PHP/Class/Reflection_Existance&amp;diff=61&amp;oldid=prev</id>
		<title>Admin: 1 версия</title>
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				<updated>2010-05-26T07:00:46Z</updated>
		
		<summary type="html">&lt;p&gt;1 версия&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Новая страница&lt;/b&gt;&lt;/p&gt;&lt;div&gt;==class_exists: given a class name and check its existance==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
   &lt;br /&gt;
  &amp;lt;!-- start source code --&amp;gt;&lt;br /&gt;
   &lt;br /&gt;
    &amp;lt;source lang=&amp;quot;html4strict&amp;quot;&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;?php&lt;br /&gt;
class Person {&lt;br /&gt;
    private $name;    &lt;br /&gt;
    private $age;    &lt;br /&gt;
    private $id;    &lt;br /&gt;
    function setId( $id ) {&lt;br /&gt;
        $this-&amp;gt;id = $id;&lt;br /&gt;
    }&lt;br /&gt;
    &lt;br /&gt;
    function getId(){&lt;br /&gt;
        echo &amp;quot;get id method&amp;quot;;    &lt;br /&gt;
    }&lt;br /&gt;
    &lt;br /&gt;
    function __clone() {&lt;br /&gt;
        $this-&amp;gt;id = 0;&lt;br /&gt;
    }&lt;br /&gt;
}&lt;br /&gt;
$classname = &amp;quot;Person&amp;quot;;&lt;br /&gt;
 &lt;br /&gt;
if ( ! class_exists( $classname ) ) {&lt;br /&gt;
    throw new Exception( &amp;quot;No such class as $classname&amp;quot; );&lt;br /&gt;
} &lt;br /&gt;
$myObj = new $classname();&lt;br /&gt;
$myObj-&amp;gt;getId();&lt;br /&gt;
?&amp;gt;&lt;br /&gt;
           &lt;br /&gt;
       &amp;lt;/source&amp;gt;&lt;br /&gt;
    &lt;br /&gt;
   &lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==Define class helper class to check the method existance==&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
   &lt;br /&gt;
  &amp;lt;!-- start source code --&amp;gt;&lt;br /&gt;
   &lt;br /&gt;
    &amp;lt;source lang=&amp;quot;html4strict&amp;quot;&amp;gt;&lt;br /&gt;
&amp;lt;?php&lt;br /&gt;
class A {&lt;br /&gt;
    function getA( ) {&lt;br /&gt;
        return array( &amp;quot;A&amp;quot;, &amp;quot;B&amp;quot; );&lt;br /&gt;
    }&lt;br /&gt;
}&lt;br /&gt;
class Helper {&lt;br /&gt;
    private $classA;&lt;br /&gt;
    function __construct( A $classA ) {&lt;br /&gt;
        $this-&amp;gt;classA = $classA;&lt;br /&gt;
    }&lt;br /&gt;
    function __call( $method, $args ) {&lt;br /&gt;
        if ( method_exists( $this-&amp;gt;classA, $method ) ) {&lt;br /&gt;
            return $this-&amp;gt;classA-&amp;gt;$method( );&lt;br /&gt;
        }&lt;br /&gt;
    }&lt;br /&gt;
}&lt;br /&gt;
$tool= new Helper( new A() );&lt;br /&gt;
print_r( $tool-&amp;gt;getA() );&lt;br /&gt;
?&amp;gt;&lt;br /&gt;
&lt;br /&gt;
           &lt;br /&gt;
       &amp;lt;/source&amp;gt;&lt;/div&gt;</summary>
		<author><name>Admin</name></author>	</entry>

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