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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@347744 c90b9560-bf6c-de11-be94-00142212c4b1
331 lines
10 KiB
XML
331 lines
10 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<sect1 xml:id="language.oop5.changelog" xmlns="http://docbook.org/ns/docbook">
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<title>OOP Changelog</title>
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<para>
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Changes to the PHP OOP model are logged here. Descriptions and other notes regarding
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these features are documented within the OOP model documentation.
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</para>
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<para>
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<informaltable>
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<tgroup cols="2">
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<thead>
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<row>
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<entry>&Version;</entry>
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<entry>&Description;</entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry>7.4.0</entry>
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<entry>
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Changed: It is now possible to throw exception within
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<function>__toString</function>.
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</entry>
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</row>
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<row>
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<entry>7.4.0</entry>
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<entry>
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Added: Support for limited return type covariance and argument
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type contravariance. Full variance support is only available if
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autoloading is used. Inside a single file only non-cyclic type
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references are possible.
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</entry>
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</row>
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<row>
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<entry>7.4.0</entry>
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<entry>
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Added: It is now possible to type class properties.
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</entry>
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</row>
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<row>
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<entry>7.3.0</entry>
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<entry>
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Incompatibility: Argument unpacking of
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<classname>Traversable</classname>s with non-&integer; keys is no longer
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supported. This behaviour was not intended and thus has been removed.
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</entry>
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</row>
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<row>
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<entry>7.3.0</entry>
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<entry>
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Incompatibility: In previous versions it was possible to separate the
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static properties by assigning a reference. This has been removed.
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</entry>
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</row>
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<row>
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<entry>7.3.0</entry>
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<entry>
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Changed: The <link linkend="language.operators.type">instanceof</link>
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operator now allows literals as the first operand, in which case the
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result is always &false;.
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</entry>
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</row>
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<row>
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<entry>7.2.0</entry>
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<entry>
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Deprecated: The <function>__autoload</function> method has been
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deprecated in favour of <function>spl_autoload_register</function>.
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</entry>
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</row>
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<row>
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<entry>7.2.0</entry>
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<entry>
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Changed: The following name cannot be used to name classes, interfaces,
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or traits: <literal>object</literal>.
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</entry>
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</row>
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<row>
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<entry>7.2.0</entry>
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<entry>
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Changed: A trailing comma can now be added to the group-use syntax
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for namespaces.
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</entry>
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</row>
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<row>
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<entry>7.2.0</entry>
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<entry>
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Changed: Parameter type widening. Parameter types from overridden
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methods and from interface implementations may now be omitted.
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</entry>
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</row>
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<row>
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<entry>7.2.0</entry>
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<entry>
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Changed: Abstract methods can now be overridden when an abstract class
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extends another abstract class.
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</entry>
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</row>
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<row>
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<entry>7.1.0</entry>
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<entry>
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Changed: The following names cannot be used to name classes, interfaces,
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or traits: <literal>void</literal> and <literal>iterable</literal>.
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</entry>
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</row>
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<row>
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<entry>7.1.0</entry>
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<entry>
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Added: It is now possible to specify the
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<link linkend="language.oop5.visiblity-constants">visibility of
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class constants</link>.
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</entry>
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</row>
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<row>
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<entry>7.0.0</entry>
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<entry>
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Deprecated: <link linkend="language.oop5.static">Static</link> calls
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to methods that are not declared static.
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</entry>
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</row>
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<row>
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<entry>7.0.0</entry>
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<entry>
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Deprecated: PHP 4 style <link linkend="language.oop5.decon">
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constructor</link>. I.e. methods that have the same name as the class
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they are defined in.
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</entry>
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</row>
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<row>
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<entry>7.0.0</entry>
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<entry>
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Added: Group <emphasis>use</emphasis> declaration: classes, functions
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and constants being imported from the same namespace can now be grouped
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together in a single use statement.
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</entry>
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</row>
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<row>
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<entry>7.0.0</entry>
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<entry>
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Added: Support for
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<link linkend="language.oop5.anonymous">anonymous classes</link>
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has been added via <literal>new class</literal>.
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</entry>
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</row>
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<row>
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<entry>7.0.0</entry>
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<entry>
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Incompatibility: Iterating over a non-<classname>Traversable</classname>
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&object; will now have the same behaviour as iterating over by-reference
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&array;s.
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</entry>
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</row>
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<row>
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<entry>7.0.0</entry>
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<entry>
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Changed: Defining (compatible) properties in two used
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<link linkend="language.oop5.traits">traits</link> no longer
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triggers an error.
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</entry>
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</row>
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<row>
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<entry>5.6.0</entry>
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<entry>
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Added: The <link linkend="object.debuginfo">__debugInfo()</link> method.
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</entry>
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</row>
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<row>
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<entry>5.5.0</entry>
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<entry>
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Added: The <link linkend="language.oop5.basic.class.class">::class</link> magic constant.
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</entry>
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</row>
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<row>
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<entry>5.5.0</entry>
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<entry>
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Added: <link linkend="language.exceptions">finally</link> to handle exceptions.
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</entry>
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</row>
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<row>
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<entry>5.4.0</entry>
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<entry>
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Added: <link linkend="language.oop5.traits">traits</link>.
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</entry>
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</row>
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<row>
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<entry>5.4.0</entry>
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<entry>
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Changed: If an <link linkend="language.oop5.abstract">abstract</link> class
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defines a signature for the <link linkend="language.oop5.decon">
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constructor</link> it will now be enforced.
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</entry>
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</row>
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<row>
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<entry>5.3.3</entry>
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<entry>
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Changed: Methods with the same name as the last element of
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a <link linkend="language.namespaces">namespaced</link>
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class name will no longer be treated as <link
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linkend="language.oop5.decon">constructor</link>. This change doesn't
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affect non-namespaced classes.
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</entry>
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</row>
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<row>
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<entry>5.3.0</entry>
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<entry>
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Changed: Classes that implement interfaces with methods that have default
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values in the prototype are no longer required to match the interface's default
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value.
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</entry>
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</row>
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<row>
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<entry>5.3.0</entry>
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<entry>
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Changed: It's now possible to reference the class using a variable (e.g.,
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<literal>echo $classname::constant;</literal>).
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The variable's value can not be a keyword (e.g., <literal>self</literal>,
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<literal>parent</literal> or <literal>static</literal>).
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</entry>
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</row>
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<row>
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<entry>5.3.0</entry>
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<entry>
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Changed: An <constant>E_WARNING</constant> level error is issued if
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the magic <link linkend="language.oop5.overloading">overloading</link>
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methods are declared <link linkend="language.oop5.static">static</link>.
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It also enforces the public visibility requirement.
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</entry>
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</row>
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<row>
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<entry>5.3.0</entry>
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<entry>
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Changed: Prior to 5.3.0, exceptions thrown in the
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<function>__autoload</function> function could not be
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caught in the <link linkend="language.exceptions">catch</link> block, and
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would result in a fatal error. Exceptions now thrown in the __autoload function
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can be caught in the <link linkend="language.exceptions">catch</link> block, with
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one provison. If throwing a custom exception, then the custom exception class must
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be available. The __autoload function may be used recursively to autoload the
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custom exception class.
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</entry>
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</row>
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<row>
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<entry>5.3.0</entry>
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<entry>
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Added: The <link linkend="language.oop5.overloading">__callStatic</link> method.
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</entry>
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</row>
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<row>
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<entry>5.3.0</entry>
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<entry>
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Added: <link linkend="language.types.string.syntax.heredoc">heredoc</link>
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and <link linkend="language.types.string.syntax.heredoc">nowdoc</link>
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support for class <emphasis>const</emphasis> and property definitions.
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Note: heredoc values must follow the same rules as double-quoted strings,
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(e.g. no variables within).
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</entry>
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</row>
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<row>
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<entry>5.3.0</entry>
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<entry>
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Added: <link linkend="language.oop5.late-static-bindings">Late Static Bindings</link>.
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</entry>
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</row>
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<row>
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<entry>5.3.0</entry>
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<entry>
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Added: The <link linkend="object.invoke">__invoke()</link> method.
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</entry>
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</row>
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<row>
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<entry>5.2.0</entry>
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<entry>
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Changed: The <link linkend="object.tostring">__toString()</link>
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method was only called when it was directly combined with
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<function>echo</function> or <function>print</function>.
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But now, it is called in any &string; context (e.g. in
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<function>printf</function> with <literal>%s</literal> modifier) but not
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in other types contexts (e.g. with <literal>%d</literal> modifier).
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As of PHP 5.2.0, converting &object;s without a
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<link linkend="object.tostring">__toString</link> method to &string;
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emits a <constant>E_RECOVERABLE_ERROR</constant> level error.
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</entry>
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</row>
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<row>
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<entry>5.1.3</entry>
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<entry>
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Changed: In previous versions of PHP 5, the use of <literal>var</literal>
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was considered deprecated and would issue an <constant>E_STRICT</constant>
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level error. It's no longer deprecated, therefore does not emit the error.
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</entry>
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</row>
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<row>
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<entry>5.1.0</entry>
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<entry>
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Changed: The <link linkend="object.set-state">__set_state()</link> static
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method is now called for classes exported by <function>var_export</function>.
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</entry>
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</row>
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<row>
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<entry>5.1.0</entry>
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<entry>
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Added: The <link linkend="object.isset">__isset()</link>
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and <link linkend="object.unset">__unset()</link> methods.
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</entry>
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</row>
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</tbody>
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</tgroup>
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</informaltable>
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</para>
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</sect1>
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<!-- Keep this comment at the end of the file
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-->
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