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We also document the new `$filter` parameter for the `ReflectionClass` methods `::getConstants()` and `::getReflectionConstants()` and the respective constants. Co-authored-by: Christoph M. Becker <cmbecker69@gmx.de> Closes GH-298.
132 lines
3.3 KiB
XML
132 lines
3.3 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<!-- $Revision$ -->
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<refentry xml:id="reflectionproperty.isinitialized" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
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<refnamediv>
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<refname>ReflectionProperty::isInitialized</refname>
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<refpurpose>Checks whether a property is initialized</refpurpose>
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</refnamediv>
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<refsect1 role="description">
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&reftitle.description;
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<methodsynopsis>
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<modifier>public</modifier> <type>bool</type><methodname>ReflectionProperty::isInitialized</methodname>
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<methodparam choice="opt"><type class="union"><type>object</type><type>null</type></type><parameter>object</parameter><initializer>&null;</initializer></methodparam>
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</methodsynopsis>
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<para>
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Checks whether a property is initialized.
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</para>
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</refsect1>
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<refsect1 role="parameters">
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&reftitle.parameters;
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<variablelist>
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<varlistentry>
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<term><parameter>object</parameter></term>
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<listitem>
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<para>
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If the property is non-static an object must be provided to fetch the
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property from.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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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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Returns &false; for typed properties prior to initialization,
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and for properties that have been explicitly <function>unset</function>.
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For all other properties &true; will be returned.
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</para>
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</refsect1>
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<refsect1 role="errors">
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&reftitle.errors;
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<para>
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Throws a <classname>ReflectionException</classname> if the property is inaccessible.
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You can make a protected or private property accessible using
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<methodname>ReflectionProperty::setAccessible</methodname>.
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</para>
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</refsect1>
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<refsect1 role="changelog">
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&reftitle.changelog;
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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>8.0.0</entry>
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<entry>
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<parameter>object</parameter> is nullable now.
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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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</refsect1>
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<refsect1 role="examples">
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&reftitle.examples;
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<example xml:id="reflectionproperty.isinitialized.example.basic">
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<title><methodname>ReflectionProperty::isInitialized</methodname> example</title>
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<programlisting role="php">
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<![CDATA[
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<?php
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class User
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{
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public string $name;
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}
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$rp = new ReflectionProperty('User', 'name');
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$user = new User;
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var_dump($rp->isInitialized($user));
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$user->name = 'Nikita';
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var_dump($rp->isInitialized($user));
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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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bool(false)
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bool(true)
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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>ReflectionProperty::hasType</methodname></member>
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</simplelist>
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</refsect1>
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</refentry>
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Local variables:
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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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