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 <title>The Sequence interface</title>
 <titleabbrev>Sequence</titleabbrev>

 <partintro>

<!-- {{{ Ds\Sequence intro -->
  <section xml:id="ds-sequence.intro">
   &reftitle.intro;
   <para>
        A Sequence describes the behaviour of values arranged in a single, linear dimension.
        Some languages refer to this as a "List". It’s similar to an array that uses
        incremental integer keys, with the exception of a few characteristics:
        <simplelist>
            <member>Values will always be indexed as [0, 1, 2, …, size - 1].</member>
            <member>Only allowed to access values by index in the range [0, size - 1].</member>
        </simplelist>
    </para>
    <para>
        Use cases:
        <simplelist>
            <member>Wherever you would use an array as a list (not concerned with keys).</member>
            <member>A more efficient alternative to
                <classname>SplDoublyLinkedList</classname> and
                <classname>SplFixedArray</classname>.
            </member>
        </simplelist>
   </para>
  </section>
<!-- }}} -->

  <section xml:id="ds-sequence.synopsis">
   &reftitle.interfacesynopsis;

<!-- {{{ Synopsis -->
   <classsynopsis>
    <ooclass><classname>Ds\Sequence</classname></ooclass>

<!-- {{{ Class synopsis -->
    <classsynopsisinfo>

    <ooclass><classname>Ds\Sequence</classname></ooclass>
    <oointerface><interfacename>Ds\Collection</interfacename></oointerface>

    </classsynopsisinfo>
<!-- }}} -->

    <classsynopsisinfo role="comment">&Methods;</classsynopsisinfo>
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   </classsynopsis>
<!-- }}} -->

  </section>

 </partintro>

 &reference.ds.ds.entities.sequence;

</phpdoc:classref>

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