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<title>Check for any printable character which is not whitespace or an
alphanumeric character</title>
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</div><hr /><div id="function.ctype-punct" class="refentry">
<div class="refnamediv">
<h1 class="refname">ctype_punct</h1>
<p class="verinfo">(PHP 4 >= 4.0.4, PHP 5)</p><p class="refpurpose"><span class="refname">ctype_punct</span> — <span class="dc-title">
Check for any printable character which is not whitespace or an
alphanumeric character
</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.ctype-punct-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">bool</span> <span class="methodname"><strong>ctype_punct</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$text</code></span>
)</div>
<p class="para rdfs-comment">
Checks if all of the characters in the provided <span class="type"><a href="language.types.string.html" class="type string">string</a></span>,
<em><code class="parameter">text</code></em>, are punctuation character.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.ctype-punct-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">text</code></em></span>
<dd>
<p class="para">
The tested string.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.ctype-punct-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns <strong><code>TRUE</code></strong> if every character in <em><code class="parameter">text</code></em>
is printable, but neither letter, digit or blank, <strong><code>FALSE</code></strong> otherwise.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.ctype-punct-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-5079">
<p><strong>Example #1 A <span class="function"><strong>ctype_punct()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$strings </span><span style="color: #007700">= array(</span><span style="color: #DD0000">'ABasdk!@!$#'</span><span style="color: #007700">, </span><span style="color: #DD0000">'!@ # $'</span><span style="color: #007700">, </span><span style="color: #DD0000">'*&$()'</span><span style="color: #007700">);<br />foreach (</span><span style="color: #0000BB">$strings </span><span style="color: #007700">as </span><span style="color: #0000BB">$testcase</span><span style="color: #007700">) {<br /> if (</span><span style="color: #0000BB">ctype_punct</span><span style="color: #007700">(</span><span style="color: #0000BB">$testcase</span><span style="color: #007700">)) {<br /> echo </span><span style="color: #DD0000">"The string </span><span style="color: #0000BB">$testcase</span><span style="color: #DD0000"> consists of all punctuation.\n"</span><span style="color: #007700">;<br /> } else {<br /> echo </span><span style="color: #DD0000">"The string </span><span style="color: #0000BB">$testcase</span><span style="color: #DD0000"> does not consist of all punctuation.\n"</span><span style="color: #007700">;<br /> }<br />}<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
<div class="example-contents"><p>The above example will output:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
The string ABasdk!@!$# does not consist of all punctuation.
The string !@ # $ does not consist of all punctuation.
The string *&$() consists of all punctuation.
</pre></div>
</div>
</div>
</p>
</div>
<div class="refsect1 notes" id="refsect1-function.ctype-punct-notes">
<h3 class="title">Notes</h3>
<blockquote class="note"><p><strong class="note">Note</strong>: <p class="para">
If an <span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span> between -128 and 255 inclusive is provided, it is interpreted as
the ASCII value of a single character (negative values have 256 added in order to allow
characters in the Extended ASCII range). Any other integer is interpreted as a string
containing the decimal digits of the integer.</p></p></blockquote>
</div>
<div class="refsect1 seealso" id="refsect1-function.ctype-punct-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.ctype-cntrl.html" class="function" rel="rdfs-seeAlso">ctype_cntrl()</a> - Check for control character(s)</span></li>
<li class="member"> <span class="function"><a href="function.ctype-graph.html" class="function" rel="rdfs-seeAlso">ctype_graph()</a> - Check for any printable character(s) except space</span></li>
</ul>
</p>
</div>
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