language.namespaces.constant.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>__NAMESPACE__</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="language.namespaces.global.html">Global space</a></div> <div class="next" style="text-align: right; float: right;"><a href="language.namespaces.rules.html">Name resolution rules</a></div> <div class="up"><a href="language.namespaces.html">Namespaces</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div><hr /><div id="language.namespaces.constant" class="sect1">  <h2 class="title">__NAMESPACE__</h2>  <p class="para">   The compile-time constant <b><tt>__NAMESPACE__</tt></b> is defined to   the name of the current namespace. Outside namespace this constant has the    value of empty string. This constant is useful when one needs to compose    full name for local namespaced names.   <div class="example">    <p><b>Example #1 Using __NAMESPACE__</b></p>    <div class="example-contents">     <div class="phpcode"><code><span style="color: #000000"><span style="color: #0000BB">&lt;?php<br />namespace&nbsp;A</span><span style="color: #007700">::</span><span style="color: #0000BB">B</span><span style="color: #007700">::</span><span style="color: #0000BB">C</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<br />function&nbsp;</span><span style="color: #0000BB">foo</span><span style="color: #007700">()&nbsp;{<br /></span><span style="color: #FF8000">//&nbsp;do&nbsp;stuff<br /></span><span style="color: #007700">}<br /><br /></span><span style="color: #0000BB">set_error_handler</span><span style="color: #007700">(</span><span style="color: #0000BB">__NAMESPACE__&nbsp;</span><span style="color: #007700">.&nbsp;</span><span style="color: #DD0000">"::foo"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span></span></code></div>    </div>   </div>  </p> </div><hr /><div style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="language.namespaces.global.html">Global space</a></div> <div class="next" style="text-align: right; float: right;"><a href="language.namespaces.rules.html">Name resolution rules</a></div> <div class="up"><a href="language.namespaces.html">Namespaces</a></div> <div class="home"><a href="index.html">PHP Manual</a></div></div></body></html>

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