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<refentry xml:id="reflectionreference.fromarrayelement" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
 <refnamediv>
  <refname>ReflectionReference::fromArrayElement</refname>
  <refpurpose>Create a ReflectionReference from an array element</refpurpose>
 </refnamediv>

 <refsect1 role="description">
  &reftitle.description;
  <methodsynopsis role="ReflectionReference">
   <modifier>public</modifier> <modifier>static</modifier> <type class="union"><type>ReflectionReference</type><type>null</type></type><methodname>ReflectionReference::fromArrayElement</methodname>
   <methodparam><type>array</type><parameter>array</parameter></methodparam>
   <methodparam><type class="union"><type>int</type><type>string</type></type><parameter>key</parameter></methodparam>
  </methodsynopsis>
  <para>
   Creates a <classname>ReflectionReference</classname> from an array element.
  </para>
 </refsect1>

 <refsect1 role="parameters">
  &reftitle.parameters;
  <variablelist>
   <varlistentry>
    <term><parameter>array</parameter></term>
    <listitem>
     <para>
      The &array; which contains the potential reference.
     </para>
    </listitem>
   </varlistentry>
   <varlistentry>
    <term><parameter>key</parameter></term>
    <listitem>
     <para>
      The key; either an &integer; or a &string;.
     </para>
    </listitem>
   </varlistentry>
  </variablelist>
 </refsect1>

 <refsect1 role="returnvalues">
  &reftitle.returnvalues;
  <para>
   Returns a <classname>ReflectionReference </classname> instance if
   <literal>$array[$key]</literal> is a reference, or &null; otherwise.
  </para>
 </refsect1>

 <refsect1 role="errors">
  &reftitle.errors;
  <para>
   If <parameter>array</parameter> is not an &array;, or <parameter>key</parameter>
   is not an &integer; or &string;, a <classname>TypeError</classname> is thrown. 
   If <literal>$array[$key]</literal> does not exist,
   a <classname>ReflectionException</classname> is thrown.
  </para>
 </refsect1>

</refentry>
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