<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Check whether the doubly linked list contains more nodes</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="spldoublylinkedlist.unshift.html">SplDoublyLinkedList::unshift</a></div> <div class="next" style="text-align: right; float: right;"><a href="class.splstack.html">SplStack</a></div> <div class="up"><a href="class.spldoublylinkedlist.html">SplDoublyLinkedList</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="spldoublylinkedlist.valid" class="refentry"> <div class="refnamediv"> <h1 class="refname">SplDoublyLinkedList::valid</h1> <p class="verinfo">(PHP 5 >= 5.3.0)</p><p class="refpurpose"><span class="refname">SplDoublyLinkedList::valid</span> — <span class="dc-title">Check whether the doubly linked list contains more nodes</span></p> </div> <div class="refsect1 description" id="refsect1-spldoublylinkedlist.valid-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="modifier">public</span> <span class="type">bool</span> <span class="methodname"><strong>SplDoublyLinkedList::valid</strong></span> ( <span class="methodparam">void</span> )</div> <p class="para rdfs-comment"> Checks if the doubly linked list contains any more nodes. </p> </div> <div class="refsect1 parameters" id="refsect1-spldoublylinkedlist.valid-parameters"> <h3 class="title">Parameters</h3> <p class="para">This function has no parameters.</p> </div> <div class="refsect1 returnvalues" id="refsect1-spldoublylinkedlist.valid-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <strong><code>TRUE</code></strong> if the doubly linked list contains any more nodes, <strong><code>FALSE</code></strong> otherwise. </p> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="spldoublylinkedlist.unshift.html">SplDoublyLinkedList::unshift</a></div> <div class="next" style="text-align: right; float: right;"><a href="class.splstack.html">SplStack</a></div> <div class="up"><a href="class.spldoublylinkedlist.html">SplDoublyLinkedList</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>