<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="reflectionproperty.isinitialized" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>ReflectionProperty::isInitialized</refname>
  <refpurpose>Checks whether a property is initialized</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis role="ReflectionProperty">
   <modifier>public</modifier> <type>bool</type><methodname>ReflectionProperty::isInitialized</methodname>
   <methodparam choice="opt"><type class="union"><type>object</type><type>null</type></type><parameter>object</parameter><initializer>&null;</initializer></methodparam>
  </methodsynopsis>
  <para>
   Checks whether a property is initialized.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <variablelist>
   <varlistentry>
    <term><parameter>object</parameter></term>
    <listitem>
     <para>
      If the property is non-static an object must be provided to fetch the
      property from.
     </para>
    </listitem>
   </varlistentry>
  </variablelist>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns &false; for typed properties prior to initialization,
   and for properties that have been explicitly <function>unset</function>.
   For all other properties &true; will be returned.
  </para>
 </refsect1>

 <refsect1 role="errors">
  &reftitle.errors;
  <para>
   Throws a <classname>ReflectionException</classname> if the property is inaccessible.
   You can make a protected or private property accessible using
   <methodname>ReflectionProperty::setAccessible</methodname>.
  </para>
 </refsect1>

 <refsect1 role="changelog">
  &reftitle.changelog;
  <informaltable>
   <tgroup cols="2">
    <thead>
     <row>
      <entry>&Version;</entry>
      <entry>&Description;</entry>
     </row>
    </thead>
    <tbody>
     <row>
      <entry>8.0.0</entry>
      <entry>
       <parameter>object</parameter> is nullable now.
      </entry>
     </row>
    </tbody>
   </tgroup>
  </informaltable>
 </refsect1>

 <refsect1 role="examples">
  &reftitle.examples;
  <example xml:id="reflectionproperty.isinitialized.example.basic">
   <title><methodname>ReflectionProperty::isInitialized</methodname> example</title>
   <programlisting role="php">
<![CDATA[
<?php
class User
{
    public string $name;
}

$rp = new ReflectionProperty('User', 'name');
$user = new User;
var_dump($rp->isInitialized($user));
$user->name = 'Nikita';
var_dump($rp->isInitialized($user));
?>
]]>
   </programlisting>
   &example.outputs;
   <screen>
<![CDATA[
bool(false)
bool(true)
]]>
   </screen>
  </example>
 </refsect1>

 <refsect1 role="seealso">
  &reftitle.seealso;
  <simplelist>
   <member><methodname>ReflectionProperty::hasType</methodname></member>
  </simplelist>
 </refsect1>

</refentry>
<!-- Keep this comment at the end of the file
Local variables:
mode: sgml
sgml-omittag:t
sgml-shorttag:t
sgml-minimize-attributes:nil
sgml-always-quote-attributes:t
sgml-indent-step:1
sgml-indent-data:t
indent-tabs-mode:nil
sgml-parent-document:nil
sgml-default-dtd-file:"~/.phpdoc/manual.ced"
sgml-exposed-tags:nil
sgml-local-catalogs:nil
sgml-local-ecat-files:nil
End:
vim600: syn=xml fen fdm=syntax fdl=2 si
vim: et tw=78 syn=sgml
vi: ts=1 sw=1
-->
