<!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>The SplBool class</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="splenum.getconstlist.html">SplEnum::getConstList</a></div> <div class="next" style="text-align: right; float: right;"><a href="class.splstring.html">SplString</a></div> <div class="up"><a href="book.spl-types.html">SPL Types</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="class.splbool" class="reference"> <h1 class="title">The SplBool class</h1> <div class="partintro"><p class="verinfo">(PECL spl_types >= 0.1.0)</p> <div class="section" id="splbool.intro"> <h2 class="title">Introduction</h2> <p class="para"> The SplBool class is used to enforce strong typing of the bool type. </p> </div> <div class="section" id="splbool.synopsis"> <h2 class="title">Class synopsis</h2> <div class="classsynopsis"> <div class="ooclass"></div> <div class="classsynopsisinfo"> <span class="ooclass"> <strong class="classname">SplBool</strong> </span> <span class="ooclass"> <span class="modifier">extends</span> <a href="class.splenum.html" class="classname">SplEnum</a> </span> {</div> <div class="classsynopsisinfo classsynopsisinfo_comment">/* Constants */</div> <div class="fieldsynopsis"> <span class="modifier">const</span> <span class="type">boolean</span> <var class="fieldsynopsis_varname"><a href="class.splbool.html#splbool.constants.default"><var class="varname">__default</var></a></var> <span class="initializer"> = <strong><code>FALSE</code></strong></span> ;</div> <div class="fieldsynopsis"> <span class="modifier">const</span> <span class="type">boolean</span> <var class="fieldsynopsis_varname"><a href="class.splbool.html#splbool.constants.false"><var class="varname">false</var></a></var> <span class="initializer"> = <strong><code>FALSE</code></strong></span> ;</div> <div class="fieldsynopsis"> <span class="modifier">const</span> <span class="type">boolean</span> <var class="fieldsynopsis_varname"><a href="class.splbool.html#splbool.constants.true"><var class="varname">true</var></a></var> <span class="initializer"> = <strong><code>TRUE</code></strong></span> ;</div> <div class="classsynopsisinfo classsynopsisinfo_comment">/* Inherited methods */</div> <div class="methodsynopsis dc-description"> <span class="modifier">public</span> <span class="type">array</span> <span class="methodname"><a href="splenum.getconstlist.html" class="methodname">SplEnum::getConstList</a></span> ([ <span class="methodparam"><span class="type">bool</span> <code class="parameter">$include_default</code><span class="initializer"> = <strong><code>FALSE</code></strong></span></span> ] )</div> }</div> </div> <div class="section" id="splbool.constants"> <h2 class="title">Predefined Constants</h2> <dl> <dt id="splbool.constants.default"><strong><code>SplBool::__default</code></strong></dt> <dd> <p class="para"/> </dd> <dt id="splbool.constants.false"><strong><code>SplBool::false</code></strong></dt> <dd> <p class="para"/> </dd> <dt id="splbool.constants.true"><strong><code>SplBool::true</code></strong></dt> <dd> <p class="para"/> </dd> </dl> </div> <div class="section" id="splbool.examples"> <h2 class="title">Examples</h2> <p class="para"> <div class="example" id="example-4932"> <p><strong>Example #1 <strong class="classname">SplBool</strong> usage example</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br />$true </span><span style="color: #007700">= new </span><span style="color: #0000BB">SplBool</span><span style="color: #007700">(</span><span style="color: #0000BB">true</span><span style="color: #007700">);<br />if (</span><span style="color: #0000BB">$true</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">"TRUE\n"</span><span style="color: #007700">;<br />}<br /><br /></span><span style="color: #0000BB">$false </span><span style="color: #007700">= new </span><span style="color: #0000BB">SplBool</span><span style="color: #007700">;<br />if (</span><span style="color: #0000BB">$false</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">"FALSE\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 screen"> <div class="cdata"><pre> TRUE </pre></div> </div> </div> </p> </div> </div> </div> <hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; 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