<!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 if code point is permissible in an identifier</title> </head> <body><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="intlchar.isidignorable.html">IntlChar::isIDIgnorable</a></div> <div class="next" style="text-align: right; float: right;"><a href="intlchar.isidstart.html">IntlChar::isIDStart</a></div> <div class="up"><a href="class.intlchar.html">IntlChar</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div><hr /><div id="intlchar.isidpart" class="refentry"> <div class="refnamediv"> <h1 class="refname">IntlChar::isIDPart</h1> <p class="verinfo">(PHP 7)</p><p class="refpurpose"><span class="refname">IntlChar::isIDPart</span> — <span class="dc-title">Check if code point is permissible in an identifier</span></p> </div> <div class="refsect1 description" id="refsect1-intlchar.isidpart-description"> <h3 class="title">Description</h3> <div class="methodsynopsis dc-description"> <span class="modifier">public</span> <span class="modifier">static</span> <span class="type">bool</span> <span class="methodname"><strong>IntlChar::isIDPart</strong></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">$codepoint</code></span> )</div> <p class="para rdfs-comment"> Determines if the specified character is permissible in an identifier. </p> <p class="para"> <strong><code>TRUE</code></strong> for characters with general categories "L" (letters), "Nl" (letter numbers), "Nd" (decimal digits), "Mc" and "Mn" (combining marks), "Pc" (connecting punctuation), and u_isIDIgnorable(c). </p> <blockquote class="note"><p><strong class="note">Note</strong>: <p class="para"> This is almost the same as Unicode's ID_Continue (<strong><code>IntlChar::PROPERTY_ID_CONTINUE</code></strong>) except that Unicode recommends to ignore Cf which is less than <span class="function"><a href="intlchar.isidignorable.html" class="function">IntlChar::isIDIgnorable()</a></span>. </p> </p></blockquote> </div> <div class="refsect1 parameters" id="refsect1-intlchar.isidpart-parameters"> <h3 class="title">Parameters</h3> <dl> <dt> <code class="parameter">codepoint</code></dt> <dd> <p class="para">The <span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span> codepoint value (e.g. <em>0x2603</em> for <em class="emphasis">U+2603 SNOWMAN</em>), or the character encoded as a UTF-8 <span class="type"><a href="language.types.string.html" class="type string">string</a></span> (e.g. <em>"\u{2603}"</em>)</p> </dd> </dl> </div> <div class="refsect1 returnvalues" id="refsect1-intlchar.isidpart-returnvalues"> <h3 class="title">Return Values</h3> <p class="para"> Returns <strong><code>TRUE</code></strong> if <code class="parameter">codepoint</code> is the code point may occur in an identifier, <strong><code>FALSE</code></strong> if not. </p> </div> <div class="refsect1 examples" id="refsect1-intlchar.isidpart-examples"> <h3 class="title">Examples</h3> <div class="example" id="example-3227"> <p><strong>Example #1 Testing different code points</strong></p> <div class="example-contents"> <div class="phpcode"><code><span style="color: #000000"> <span style="color: #0000BB"><?php<br />var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">IntlChar</span><span style="color: #007700">::</span><span style="color: #0000BB">isIDPart</span><span style="color: #007700">(</span><span style="color: #DD0000">"A"</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">IntlChar</span><span style="color: #007700">::</span><span style="color: #0000BB">isIDPart</span><span style="color: #007700">(</span><span style="color: #DD0000">"$"</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">IntlChar</span><span style="color: #007700">::</span><span style="color: #0000BB">isIDPart</span><span style="color: #007700">(</span><span style="color: #DD0000">"\n"</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">IntlChar</span><span style="color: #007700">::</span><span style="color: #0000BB">isIDPart</span><span style="color: #007700">(</span><span style="color: #DD0000">"\u{2603}"</span><span style="color: #007700">));<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> bool(true) bool(false) bool(false) bool(false) </pre></div> </div> </div> </div> <div class="refsect1 seealso" id="refsect1-intlchar.isidpart-seealso"> <h3 class="title">See Also</h3> <p class="para"> <ul class="simplelist"> <li class="member"><span class="function"><a href="intlchar.isidignorable.html" class="function" rel="rdfs-seeAlso">IntlChar::isIDIgnorable()</a> - Check if code point is an ignorable character</span></li> <li class="member"><span class="function"><a href="intlchar.isidstart.html" class="function" rel="rdfs-seeAlso">IntlChar::isIDStart()</a> - Check if code point is permissible as the first character in an identifier</span></li> <li class="member"><strong><code>IntlChar::PROPERTY_ID_CONTINUE</code></strong></li> </ul> </p> </div> </div><hr /><div class="manualnavbar" style="text-align: center;"> <div class="prev" style="text-align: left; float: left;"><a href="intlchar.isidignorable.html">IntlChar::isIDIgnorable</a></div> <div class="next" style="text-align: right; float: right;"><a href="intlchar.isidstart.html">IntlChar::isIDStart</a></div> <div class="up"><a href="class.intlchar.html">IntlChar</a></div> <div class="home"><a href="index.html">PHP Manual</a></div> </div></body></html>