<!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 SplString class</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="class.splbool.html">SplBool</a></div> <div class="next" style="text-align: right; float: right;"><a href="book.stream.html">Streams</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.splstring" class="reference"> <h1 class="title">The SplString class</h1> <div class="partintro"><p class="verinfo">(PECL spl_types >= 0.1.0)</p> <div class="section" id="splstring.intro"> <h2 class="title">Introduction</h2> <p class="para"> The SplString class is used to enforce strong typing of the string type. </p> </div> <div class="section" id="splstring.synopsis"> <h2 class="title">Class synopsis</h2> <div class="classsynopsis"> <div class="ooclass"></div> <div class="classsynopsisinfo"> <span class="ooclass"> <strong class="classname">SplString</strong> </span> <span class="ooclass"> <span class="modifier">extends</span> <a href="class.spltype.html" class="classname">SplType</a> </span> {</div> <div class="classsynopsisinfo classsynopsisinfo_comment">/* Constants */</div> <div class="fieldsynopsis"> <span class="modifier">const</span> <span class="type">integer</span> <var class="fieldsynopsis_varname"><a href="class.splstring.html#splstring.constants.default"><var class="varname">__default</var></a></var> <span class="initializer"> = 0</span> ;</div> <div class="classsynopsisinfo classsynopsisinfo_comment">/* Inherited methods */</div> <div class="methodsynopsis dc-description"> <span class="methodname"><a href="spltype.construct.html" class="methodname">SplType::__construct</a></span> ([ <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$initial_value</code></span> [, <span class="methodparam"><span class="type">bool</span> <code class="parameter">$strict</code></span> ]] )</div> }</div> </div> <div class="section" id="splstring.constants"> <h2 class="title">Predefined Constants</h2> <dl> <dt id="splstring.constants.default"> <span class="term"><strong><code>SplString::__default</code></strong></span> <dd> <p class="para"/> </dd> </dt> </dl> </div> <div class="section" id="splstring.examples"> <h2 class="title">Examples</h2> <p class="para"> <div class="example" id="example-4003"> <p><strong>Example #1 <strong class="classname">SplString</strong> usage example</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br />$string </span><span style="color: #007700">= new </span><span style="color: #0000BB">SplString</span><span style="color: #007700">(</span><span style="color: #DD0000">"Testing"</span><span style="color: #007700">);<br /><br />try {<br /> </span><span style="color: #0000BB">$string </span><span style="color: #007700">= array();<br />} catch (</span><span style="color: #0000BB">UnexpectedValueException $uve</span><span style="color: #007700">) {<br /> echo </span><span style="color: #0000BB">$uve</span><span style="color: #007700">-></span><span style="color: #0000BB">getMessage</span><span style="color: #007700">() . </span><span style="color: #0000BB">PHP_EOL</span><span style="color: #007700">;<br />}<br /><br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$string</span><span style="color: #007700">);<br />echo </span><span style="color: #0000BB">$string</span><span style="color: #007700">; </span><span style="color: #FF8000">// Outputs "Testing"<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> Value not a string object(SplString)#1 (1) { ["__default"]=> string(7) "Testing" } Testing </pre></div> </div> </div> </p> </div> </div> </div> <hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="class.splbool.html">SplBool</a></div> <div class="next" style="text-align: right; float: right;"><a href="book.stream.html">Streams</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></body></html>