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c14218bf94
Well, it doesn't really make the Polish manual much better but it does reduce the amount of outdated files substantially leaving the ones that deserve some actual work and thought.
157 lines
3.8 KiB
XML
157 lines
3.8 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- EN-Revision: 09003ff79e20ff948b2c9efb2745f7625637d7e4 Maintainer: sobak Status: ready -->
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<!-- $Revision$ -->
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<refentry xml:id="arrayaccess.offsetexists" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
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<refnamediv>
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<refname>ArrayAccess::offsetExists</refname>
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<refpurpose>Sprawdza czy offset istnieje</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="ArrayAccess">
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<modifier>public</modifier> <type>bool</type><methodname>ArrayAccess::offsetExists</methodname>
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<methodparam><type>mixed</type><parameter>offset</parameter></methodparam>
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</methodsynopsis>
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<para>
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Sprawdza czy offset istnieje.
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</para>
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<para>
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Ta metoda jest wykonywana gdy użyto <function>isset</function> lub
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<function>empty</function> na obiektach implementujących <classname>ArrayAccess</classname>.
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</para>
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<note>
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<para>
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Przy użyciu <function>empty</function> <function>ArrayAccess::offsetGet</function> zostanie
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wywołane i sprawdzone czy jest puste, tylko jeśli <function>ArrayAccess::offsetExists</function>
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zwróci &true;.
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</para>
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</note>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<para>
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<variablelist>
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<varlistentry><term><parameter>offset</parameter></term>
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<listitem>
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<para>
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Offset do sprawdzenia.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect1>
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<refsect1 role="returnvalues">
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&reftitle.returnvalues;
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<para>
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&return.success;
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</para>
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<note>
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<para>
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Zwracana wartość zostanie skonwertowana do typu <type>bool</type>, jeżeli została zwrócona inna niż wartość logiczna.
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</para>
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</note>
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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<para>
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<example>
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<title>Przykład użycia <function>ArrayAccess::offsetExists</function></title>
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<programlisting role="php">
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<![CDATA[
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<?php
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class obj implements ArrayAccess {
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public function offsetSet($offset, $value): void {
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var_dump(__METHOD__);
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}
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public function offsetExists($var): bool {
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var_dump(__METHOD__);
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if ($var == "foobar") {
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return true;
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}
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return false;
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}
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public function offsetUnset($var): void {
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var_dump(__METHOD__);
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}
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#[\ReturnTypeWillChange]
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public function offsetGet($var) {
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var_dump(__METHOD__);
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return "wartość";
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}
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}
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$obj = new obj;
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echo "Wykonuje obj::offsetExists()\n";
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var_dump(isset($obj["foobar"]));
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echo "\nWykonuje obj::offsetExists() i obj::offsetGet()\n";
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var_dump(empty($obj["foobar"]));
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echo "\nWykonuje obj::offsetExists(), *nie* obj:offsetGet(), gdyż nie ma nic do pobrania\n";
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var_dump(empty($obj["foobaz"]));
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?>
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]]>
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</programlisting>
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&example.outputs.similar;
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<screen>
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<![CDATA[
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Wykonuje obj::offsetExists()
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string(17) "obj::offsetExists"
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bool(true)
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Wykonuje obj::offsetExists() and obj::offsetGet()
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string(17) "obj::offsetExists"
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string(14) "obj::offsetGet"
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bool(false)
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Wykonuje obj::offsetExists(), *nie* obj:offsetGet(), gdyż nie ma nic do pobrania
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string(17) "obj::offsetExists"
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bool(true)
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]]>
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</screen>
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</example>
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</para>
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</refsect1>
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<!--
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<refsect1 role="seealso">
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&reftitle.seealso;
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<para>
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<simplelist>
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<member><methodname>Classname::Method</methodname></member>
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</simplelist>
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</para>
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</refsect1>
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-->
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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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