📄 splqueue.construct.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html> <head> <title>Constructs a new queue implemented using a doubly linked list</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="class.splqueue.html">SplQueue</a></div> <div class="next" style="text-align: right; float: right;"><a href="splqueue.dequeue.html">SplQueue::dequeue</a></div> <div class="up"><a href="class.splqueue.html">SplQueue</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="splqueue.construct" class="refentry"> <div class="refnamediv"> <h1 class="refname">SplQueue::__construct</h1> <p class="verinfo">(No version information available, might be only in CVS)</p><p class="refpurpose"><span class="refname">SplQueue::__construct</span> — <span class="dc-title">Constructs a new queue implemented using a doubly linked list</span></p> </div> <div class="refsect1 description"> <h3 class="title">Description</h3> <div class="constructorsynopsis dc-description"> <span class="methodname"><b><b>SplQueue::__construct</b></b></span> ( <span class="methodparam">void</span> )</div> <p class="para rdfs-comment"> This constructs a new empty queue. <blockquote><p><b class="note">Note</b>: This method automatically sets the iterator mode to SplDoublyLinkedList::IT_MODE_FIFO. <br /> </p></blockquote> </p> </div> <div class="refsect1 parameters"> <h3 class="title">Parameters</h3> <p class="para">This function has no parameters.</p> </div> <div class="refsect1 returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> No value is returned. </p> </div> <div class="refsect1 examples"> <h3 class="title">Examples</h3> <p class="para"> <div class="example"> <p><b>Example #1 <b>SplQueue::__construct()</b> example</b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$q </span><span style="color: #007700">= new </span><span style="color: #0000BB">SplQueue</span><span style="color: #007700">();<br /><br /></span><span style="color: #0000BB">$q</span><span style="color: #007700">[] = </span><span style="color: #0000BB">1</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$q</span><span style="color: #007700">[] = </span><span style="color: #0000BB">2</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$q</span><span style="color: #007700">[] = </span><span style="color: #0000BB">3</span><span style="color: #007700">;<br /><br />foreach (</span><span style="color: #0000BB">$q </span><span style="color: #007700">as </span><span style="color: #0000BB">$elem</span><span style="color: #007700">) {<br /> echo </span><span style="color: #0000BB">$elem</span><span style="color: #007700">.</span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> <div class="example-contents"><p>The above example will output:</p></div> <div class="example-contents"><pre><div class="cdata"><pre>123</pre></div> </pre></div> </div> <div class="example"> <p><b>Example #2 Efficiently handling tasks with <a href="class.splqueue.html" class="classname">SplQueue</a></b></p> <div class="example-contents"><div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB"><?php<br />$q </span><span style="color: #007700">= new </span><span style="color: #0000BB">SplQueue</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">$q</span><span style="color: #007700">-></span><span style="color: #0000BB">setIteratorMode</span><span style="color: #007700">(</span><span style="color: #0000BB">SplQueue</span><span style="color: #007700">::</span><span style="color: #0000BB">IT_MODE_DELETE</span><span style="color: #007700">);<br /><br /></span><span style="color: #FF8000">// ... enqueue some tasks on the queue ...<br /><br />// process them<br /></span><span style="color: #007700">foreach (</span><span style="color: #0000BB">$q </span><span style="color: #007700">as </span><span style="color: #0000BB">$task</span><span style="color: #007700">) {<br /> </span><span style="color: #FF8000">// ... process $task ...<br /><br /> // add new tasks on the queue<br /> </span><span style="color: #0000BB">$q</span><span style="color: #007700">[] = </span><span style="color: #0000BB">$newTask</span><span style="color: #007700">;<br /> </span><span style="color: #FF8000">// ...<br /></span><span style="color: #007700">}<br /></span><span style="color: #0000BB">?></span></span></code></div> </div> </div> </p> </div></div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; 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