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176 lines
4.8 KiB
XML
176 lines
4.8 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- EN-Revision: 1870b4c6aa53e14eec6201eb63f28ed6be6349f7 Maintainer: PhilDaiguille Status: ready -->
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<!-- Reviewed: yes -->
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<refentry xml:id="reflectionfunctionabstract.getclosurecalledclass" xmlns="http://docbook.org/ns/docbook">
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<refnamediv>
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<refname>ReflectionFunctionAbstract::getClosureCalledClass</refname>
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<refpurpose>Devuelve la clase correspondiente a static:: dentro de una función anónima</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis role="ReflectionFunctionAbstract">
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<modifier>public</modifier> <type class="union"><type>ReflectionClass</type><type>null</type></type><methodname>ReflectionFunctionAbstract::getClosureCalledClass</methodname>
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<void/>
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</methodsynopsis>
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<simpara>
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Devuelve la clase como <classname>ReflectionClass</classname> que
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corresponde a la resolución del nombre de clase correspondiente a <literal>static::</literal> dentro de la
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<classname>Closure</classname>.
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</simpara>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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&no.function.parameters;
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<simpara>
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Devuelve una <classname>ReflectionClass</classname> correspondiente a la clase
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representada por <literal>static::</literal> en la <classname>Closure</classname>.
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Si la función no es una función anónima o si tiene un ámbito global, &null;
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es devuelto en su lugar.
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</simpara>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<example>
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<title>
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Ejemplo que ilustra la diferencia entre
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<methodname>ReflectionFunctionAbstract::getClosureCalledClass</methodname>,
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<methodname>ReflectionFunctionAbstract::getClosureScopeClass</methodname>,
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y <methodname>ReflectionFunctionAbstract::getClosureThis</methodname>
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con una función anónima en el contexto del objeto
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</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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class A
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{
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public function getClosure()
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{
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var_dump(self::class, static::class);
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return function () {};
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}
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}
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class B extends A {}
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$b = new B();
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$c = $b->getClosure();
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$r = new ReflectionFunction($c);
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var_dump($r->getClosureThis()); // $this === $b, ya que una función anónima no estática toma el contexto del objeto
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var_dump($r->getClosureScopeClass()); // Corresponde a la resolución de self::class dentro de una función anónima
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var_dump($r->getClosureCalledClass()); // Corresponde a la resolución de static::class dentro de una función anónima
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?>
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]]>
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</programlisting>
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&example.outputs;
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<screen>
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<![CDATA[
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string(1) "A"
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string(1) "B"
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object(B)#1 (0) {
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}
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object(ReflectionClass)#4 (1) {
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["name"]=>
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string(1) "A"
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}
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object(ReflectionClass)#4 (1) {
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["name"]=>
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string(1) "B"
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}
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]]>
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</screen>
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</example>
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<example>
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<title>
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Ejemplo que ilustra la diferencia entre
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<methodname>ReflectionFunctionAbstract::getClosureCalledClass</methodname>,
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<methodname>ReflectionFunctionAbstract::getClosureScopeClass</methodname>,
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y <methodname>ReflectionFunctionAbstract::getClosureThis</methodname>
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con una función anónima estática sin contexto de objeto
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</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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class A
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{
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public function getClosure()
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{
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var_dump(self::class, static::class);
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return static function () {};
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}
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}
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class B extends A {}
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$b = new B();
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$c = $b->getClosure();
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$r = new ReflectionFunction($c);
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var_dump($r->getClosureThis()); // NULL, ya que la pseudo-variable $this no está disponible en un contexto estático
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var_dump($r->getClosureScopeClass()); // Corresponde a la resolución de self::class dentro de una función anónima
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var_dump($r->getClosureCalledClass()); // Corresponde a la resolución de static::class dentro de una función anónima
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?>
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]]>
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</programlisting>
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&example.outputs;
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<screen>
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<![CDATA[
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string(1) "A"
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string(1) "B"
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NULL
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object(ReflectionClass)#4 (1) {
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["name"]=>
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string(1) "A"
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}
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object(ReflectionClass)#4 (1) {
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["name"]=>
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string(1) "B"
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}
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]]>
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</screen>
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</example>
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</refsect1>
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<refsect1 role="seealso">
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&reftitle.seealso;
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<simplelist>
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<member><methodname>ReflectionFunctionAbstract::getClosureScopeClass</methodname></member>
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<member><methodname>ReflectionFunctionAbstract::getClosureThis</methodname></member>
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<member><xref linkend="language.oop5.late-static-bindings" /></member>
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</simplelist>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-omittag:t
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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indent-tabs-mode:nil
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sgml-parent-document:nil
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sgml-default-dtd-file:"~/.phpdoc/manual.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:nil
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sgml-local-ecat-files:nil
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End:
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vim600: syn=xml fen fdm=syntax fdl=2 si
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vim: et tw=78 syn=sgml
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vi: ts=1 sw=1
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-->
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