diff --git a/reference/spl/arrayiterator/seek.xml b/reference/spl/arrayiterator/seek.xml
index b356c24dbe38..67914a502f8a 100644
--- a/reference/spl/arrayiterator/seek.xml
+++ b/reference/spl/arrayiterator/seek.xml
@@ -3,7 +3,7 @@
 <refentry xml:id="arrayiterator.seek" xmlns="http://docbook.org/ns/docbook">
  <refnamediv>
   <refname>ArrayIterator::seek</refname>
-  <refpurpose>Seek to position</refpurpose>
+  <refpurpose>Seeks to a position</refpurpose>
  </refnamediv>
 
  <refsect1 role="description">
@@ -13,7 +13,9 @@
    <methodparam><type>int</type><parameter>offset</parameter></methodparam>
   </methodsynopsis>
 
-  &warn.undocumented.func;
+  <simpara>
+   Seeks to a given position in the iterator.
+  </simpara>
  </refsect1>
  
  <refsect1 role="parameters">
@@ -39,6 +41,14 @@
   </para>
  </refsect1>
 
+ <refsect1 role="errors">
+  &reftitle.errors;
+  <simpara>
+   Throws an <classname>OutOfBoundsException</classname>
+   if the <parameter>offset</parameter> is not seekable.
+  </simpara>
+ </refsect1>
+
 </refentry>
 <!-- Keep this comment at the end of the file
 Local variables:
diff --git a/reference/spl/seekableiterator/seek.xml b/reference/spl/seekableiterator/seek.xml
index 2bc98ed188e4..2469f2ca1e60 100644
--- a/reference/spl/seekableiterator/seek.xml
+++ b/reference/spl/seekableiterator/seek.xml
@@ -43,10 +43,10 @@
 
  <refsect1 role="errors">
   &reftitle.errors;
-  <para>
+  <simpara>
    Implementations should throw an <classname>OutOfBoundsException</classname>
    if the <parameter>offset</parameter> is not seekable.
-  </para>
+  </simpara>
  </refsect1>
 
  <refsect1 role="examples">
diff --git a/reference/spl/splobjectstorage/seek.xml b/reference/spl/splobjectstorage/seek.xml
new file mode 100644
index 000000000000..81e231d076b6
--- /dev/null
+++ b/reference/spl/splobjectstorage/seek.xml
@@ -0,0 +1,118 @@
+<?xml version="1.0" encoding="utf-8"?>
+<refentry xml:id="splobjectstorage.seek" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
+ <refnamediv>
+  <refname>SplObjectStorage::seek</refname>
+  <refpurpose>Seeks iterator to a position</refpurpose>
+ </refnamediv>
+
+ <refsect1 role="description">
+  &reftitle.description;
+  <methodsynopsis role="SplObjectStorage">
+   <modifier>public</modifier> <type>void</type><methodname>SplObjectStorage::seek</methodname>
+   <methodparam><type>int</type><parameter>offset</parameter></methodparam>
+  </methodsynopsis>
+
+  <simpara>
+   Seeks to a given position in the iterator.
+  </simpara>
+ </refsect1>
+
+ <refsect1 role="parameters">
+  &reftitle.parameters;
+  <variablelist>
+   <varlistentry>
+    <term><parameter>offset</parameter></term>
+    <listitem>
+     <simpara>
+      The position to seek to.
+     </simpara>
+    </listitem>
+   </varlistentry>
+  </variablelist>
+ </refsect1>
+
+ <refsect1 role="returnvalues">
+  &reftitle.returnvalues;
+  <simpara>
+   &return.void;
+  </simpara>
+ </refsect1>
+
+ <refsect1 role="errors">
+  &reftitle.errors;
+  <simpara>
+   Throws an <classname>OutOfBoundsException</classname>
+   if the <parameter>offset</parameter> is not seekable.
+  </simpara>
+ </refsect1>
+
+ <refsect1 role="examples">
+  &reftitle.examples;
+  <example xml:id="splobjectstorage.seek.example.basic">
+   <title><methodname>SplObjectStorage::seek</methodname> example</title>
+   <simpara>
+    Seeks to item position 2 in the iterator.
+   </simpara>
+   <programlisting role="php">
+<![CDATA[
+<?php
+class Test {
+    public function __construct(public string $marker) {}
+}
+
+$a = new Test("a");
+$b = new Test("b");
+$c = new Test("c");
+
+$storage = new SplObjectStorage();
+$storage[$a] = "first";
+$storage[$b] = "second";
+$storage[$c] = "third";
+
+$storage->seek(2);
+var_dump($storage->key());
+var_dump($storage->current());
+?>
+]]>
+   </programlisting>
+   &example.outputs;
+   <screen>
+<![CDATA[
+int(2)
+object(Test)#3 (1) {
+  ["marker"]=>
+  string(1) "c"
+}
+]]>
+   </screen>
+  </example>
+ </refsect1>
+
+ <refsect1 role="seealso">
+  &reftitle.seealso;
+  <simplelist>
+   <member><classname>SeekableIterator</classname></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
+-->
diff --git a/reference/spl/versions.xml b/reference/spl/versions.xml
index 9468a4f10848..916e02d852c4 100644
--- a/reference/spl/versions.xml
+++ b/reference/spl/versions.xml
@@ -979,6 +979,7 @@
  <function name="splobjectstorage::removeall" from="PHP 5 &gt;= 5.3.0, PHP 7, PHP 8"/>
  <function name="splobjectstorage::removeallexcept" from="PHP 5 &gt;= 5.3.6, PHP 7, PHP 8"/>
  <function name="splobjectstorage::rewind" from="PHP 5 &gt;= 5.1.0, PHP 7, PHP 8"/>
+ <function name="splobjectstorage::seek" from="PHP 8 &gt;= 8.4.0"/>
  <function name="splobjectstorage::serialize" from="PHP 5 &gt;= 5.2.2, PHP 7, PHP 8"/>
  <function name="splobjectstorage::setinfo" from="PHP 5 &gt;= 5.3.0, PHP 7, PHP 8"/>
  <function name="splobjectstorage::unserialize" from="PHP 5 &gt;= 5.2.2, PHP 7, PHP 8"/>