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<title>Make regular expression for case insensitive match</title>
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</div><hr /><div id="function.sql-regcase" class="refentry">
<div class="refnamediv">
<h1 class="refname">sql_regcase</h1>
<p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">sql_regcase</span> — <span class="dc-title">Make regular expression for case insensitive match</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.sql-regcase-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">string</span> <span class="methodname"><strong>sql_regcase</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$string</code></span>
)</div>
<p class="para rdfs-comment">
Creates a regular expression for a case insensitive match.
</p>
<div class="warning"><strong class="warning">Warning</strong><p class="simpara">This function has been
<em class="emphasis">DEPRECATED</em> as of PHP 5.3.0. Relying on this feature is
highly discouraged.</p></div>
</div>
<div class="refsect1 parameters" id="refsect1-function.sql-regcase-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">string</code></em></span>
<dd>
<p class="para">
The input string.
</p>
</dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.sql-regcase-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns a valid regular expression which will match
<em><code class="parameter">string</code></em>, ignoring case. This expression is
<em><code class="parameter">string</code></em> with each alphabetic character converted to
a bracket expression; this bracket expression contains that character's
uppercase and lowercase form. Other characters remain unchanged.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.sql-regcase-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-4815">
<p><strong>Example #1 <span class="function"><strong>sql_regcase()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">sql_regcase</span><span style="color: #007700">(</span><span style="color: #DD0000">"Foo - bar."</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>
[Ff][Oo][Oo] - [Bb][Aa][Rr].
</pre></div>
</div>
</div>
</p>
<p class="para">
This can be used to achieve case insensitive pattern matching in
products which support only case sensitive regular expressions.
</p>
</div>
<div class="refsect1 notes" id="refsect1-function.sql-regcase-notes">
<h3 class="title">Notes</h3>
<blockquote class="note"><p><strong class="note">Note</strong>: <p class="para">As of PHP 5.3.0, the
regex extension is deprecated in favor of the
<a href="book.pcre.html" class="link">PCRE extension</a>. Calling this function
will issue an <strong><code>E_DEPRECATED</code></strong> notice. See <a href="reference.pcre.pattern.posix.html" class="link">the list of
differences</a> for help on converting to PCRE.</p></p></blockquote>
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