nlopess Mon May 24 10:27:49 2004 EDT
Modified files:
/phpdoc/en/appendices migration5.xml
Log:
fix backward incompatible changes
http://cvs.php.net/diff.php/phpdoc/en/appendices/migration5.xml?r1=1.18&r2=1.19&ty=u
Index: phpdoc/en/appendices/migration5.xml
diff -u phpdoc/en/appendices/migration5.xml:1.18
phpdoc/en/appendices/migration5.xml:1.19
--- phpdoc/en/appendices/migration5.xml:1.18 Mon May 24 10:07:35 2004
+++ phpdoc/en/appendices/migration5.xml Mon May 24 10:27:49 2004
@@ -1,5 +1,5 @@
<?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.18 $ -->
+<!-- $Revision: 1.19 $ -->
<appendix id="migration5">
<title>Migrating from PHP 4 to PHP 5</title>
@@ -69,6 +69,18 @@
<listitem><simpara>
An object with no properties is no longer considered "empty".
</simpara></listitem>
+ <listitem><simpara>
+ In some cases classes must be declared before used. It only happens only
+ if some of the new features of PHP 5 are used. Otherwise the behaviour is
+ the old.
+ </simpara></listitem>
+ <listitem><simpara>
+ <function>get_class</function> starting PHP 5 returns the name of the
+ class as it was declared which may lead to problems in older scripts
+ that rely on the previous behaviour (the class name was lowercased).
+ A possible solution is to search for <function>get_class</function> in
+ all your scripts and use <function>strtolower</function>.
+ </simpara></listitem>
</itemizedlist>
<para>
@@ -101,7 +113,32 @@
// Will be executed
}
?>
+]]>
+ </programlisting>
+ </example>
+ </para>
+ <para>
+ <example>
+ <title>In some cases classes must be declared before used</title>
+ <programlisting role="php">
+<![CDATA[
+<?php
+
+//works with no errors:
+$a = new a();
+class a {
+}
+
+//throws an error:
+$a = new b();
+
+interface c{
+}
+class b implements c {
+}
+
+?>
]]>
</programlisting>
</example>
