cvs: phpdoc /en/reference/classobj/functions is-a.xml

philip Mon May 24 17:53:23 2004 EDT Modified files: /phpdoc/en/reference/classobj/functions is-a.xml Log: Mention (with an example) that is_a() is deprecated in PHP 5 in favor of the instanceof operator. This deals with bug #27503 http://cvs.php.net/diff.php/phpdoc/en/reference/classobj/functions/is-a.xml?r1=1.6&r2=1.7&ty=u Index: phpdoc/en/reference/classobj/functions/is-a.xml diff -u phpdoc/en/reference/classobj/functions/is-a.xml:1.6 phpdoc/en/reference/classobj/functions/is-a.xml:1.7 --- phpdoc/en/reference/classobj/functions/is-a.xml:1.6 Tue Feb 24 11:28:22 2004 +++ phpdoc/en/reference/classobj/functions/is-a.xml Mon May 24 17:53:23 2004 @@ -1,5 +1,5 @@ <?xml version="1.0" encoding="iso-8859-1"?> -<!-- $Revision: 1.6 $ --> +<!-- $Revision: 1.7 $ --> <!-- splitted from ./en/functions/classobj.xml, last change in rev 1.33 --> <refentry id="function.is-a"> <refnamediv> @@ -42,6 +42,26 @@ ]]> </programlisting> </example> + </para> + <para> + The <function>is_a</function> function is deprecated as of PHP 5 in + favor of the <link linkend="language.operators.type">instanceof</link> + type operator. In the above example we could use the following in + PHP 5: + </para> + <para> + <example> + <title>Using the <emphasis>instanceof</emphasis> operator in PHP 5</title> + <programlisting role="php"> +<![CDATA[ +<?php +if ($WF instanceof WidgetFactory) { + echo 'Yes, $WF is a WidgetFactory'; +} +?> +]]> + </programlisting> + </example> </para> <simpara> See also <function>get_class</function>,