php-doc-en/language/oop5/changelog.xml

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<sect1 xml:id="language.oop5.changelog" xmlns="http://docbook.org/ns/docbook">
 <title>OOP Changelog</title>
 <para>
  Changes to the PHP 5 OOP model are logged here. Descriptions and other notes regarding
  these features are documented within the OOP 5 documentation.
 </para>
 <para>
  <informaltable>
   <tgroup cols="2">
    <thead>
     <row>
      <entry>&Version;</entry>
      <entry>&Description;</entry>
     </row>
    </thead>
    <tbody>
     <row>
      <entry>5.3.3</entry>
      <entry>
       Changed: Methods with the same name as the last element of
       a <link linkend="language.namespaces">namespaced</link>
       class name will no longer be treated as <link
       linkend="language.oop5.decon">constructor</link>. This change doesn't
       affect non-namespaced classes.
      </entry>
     </row>
     <row>
      <entry>5.3.0</entry>
      <entry>
       Changed: It's now possible to reference the class using a variable (e.g.,
       <literal>echo $classname::constant;</literal>).
       The variable's value can not be a keyword (e.g., <literal>self</literal>,
       <literal>parent</literal> or <literal>static</literal>).
      </entry>
     </row>
     <row>
      <entry>5.3.0</entry>
      <entry>
       Changed: An <constant>E_WARNING</constant> level error is issued if
       the magic <link linkend="language.oop5.overloading">overloading</link>
       methods are declared <link linkend="language.oop5.static">static</link>.
       It also enforces the public visibility requirement.
      </entry>
     </row>
     <row>
      <entry>5.3.0</entry>
      <entry>
       Changed: Prior to 5.3.0, exceptions thrown in the
       <link linkend="language.oop5.autoload">__autoload</link> function could not be
       caught in the <link linkend="language.exceptions">catch</link> block, and
       would result in a fatal error. Exceptions now thrown in the __autoload function
       can be caught in the <link linkend="language.exceptions">catch</link> block, with
       one proviso. If throwing a custom exception, then the custom exception class must
       be available. The __autoload function may be used recursively to autoload the
       custom exception class.
      </entry>
     </row>
     <row>
      <entry>5.3.0</entry>
      <entry>
       Added: The <link linkend="language.oop5.overloading">__callStatic</link> method.
      </entry>
     </row>
     <row>
      <entry>5.3.0</entry>
      <entry>
       Added: <link linkend="language.types.string.syntax.heredoc">heredoc</link>
       and <link linkend="language.types.string.syntax.heredoc">nowdoc</link>
       support for class <emphasis>const</emphasis> and property definitions.
       Note: heredoc values must follow the same rules as double-quoted strings,
       (e.g., no variables within).
      </entry>
     </row>
     <row>
      <entry>5.3.0</entry>
      <entry>
       Added: <link linkend="language.oop5.late-static-bindings">Late Static Bindings</link>.
      </entry>
     </row>
     <row>
      <entry>5.3.0</entry>
      <entry>
       Added: The <link linkend="language.oop5.magic.invoke">__invoke</link> method.
      </entry>
     </row>
     <row>
      <entry>5.2.0</entry>
      <entry>
       Changed: The <link linkend="language.oop5.magic.tostring">__toString</link>
       method was only called when it was directly combined with
       <function>echo</function> or <function>print</function>.
       But now, it is called in any string context (e.g. in
       <function>printf</function> with <literal>%s</literal> modifier) but not
       in other types contexts (e.g. with <literal>%d</literal> modifier).
       Since PHP 5.2.0, converting objects without a <literal>__toString</literal>
       method to string emits a <constant>E_RECOVERABLE_ERROR</constant> level error.
      </entry>
     </row>
     <row>
      <entry>5.1.3</entry>
      <entry>
       Changed: In previous versions of PHP 5, the use of <literal>var</literal>
       was considered deprecated and would issue an <constant>E_STRICT</constant>
       level error. It's no longer deprecated, therefore does not emit the error.
      </entry>
     </row>
     <row>
      <entry>5.1.0</entry>
      <entry>
       Changed: The <link linkend="language.oop5.magic.set-state">__set_state</link> static
       method is now called for classes exported by <function>var_export</function>.
      </entry>
     </row>
     <row>
      <entry>5.1.0</entry>
      <entry>
       Added: The <link linkend="language.oop5.overloading.members">__isset</link>
       and <link linkend="language.oop5.overloading.members">__unset</link> methods.
      </entry>
     </row>
    </tbody>
   </tgroup>
  </informaltable>
 </para>
</sect1>
 
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