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<title>Replace regular expression case insensitive</title>
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<h1 class="refname">eregi_replace</h1>
<p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">eregi_replace</span> — <span class="dc-title">Replace regular expression case insensitive</span></p>
</div>
<div id="function.eregi-replace-refsynopsisdiv">
<div class="warning"><strong class="warning">Warning</strong>
<p class="para">
This function was <em class="emphasis">DEPRECATED</em> in PHP 5.3.0, and
<em class="emphasis">REMOVED</em> in PHP 7.0.0.
</p>
<p class="para">
Alternatives to this function include:
</p>
<ul class="simplelist">
<li class="member">
<span class="function"><a href="function.preg-replace.html" class="function">preg_replace()</a></span>
(with the <em>i</em> (<strong><code>PCRE_CASELESS</code></strong>)
modifier)
</li>
</ul>
</div>
</div>
<div class="refsect1 description" id="refsect1-function.eregi-replace-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">string</span> <span class="methodname"><strong>eregi_replace</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$pattern</code></span>
, <span class="methodparam"><span class="type">string</span> <code class="parameter">$replacement</code></span>
, <span class="methodparam"><span class="type">string</span> <code class="parameter">$string</code></span>
)</div>
<p class="para rdfs-comment">
This function is identical to <span class="function"><a href="function.ereg-replace.html" class="function">ereg_replace()</a></span>
except that this ignores case distinction when matching
alphabetic characters.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.eregi-replace-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">pattern</code></dt>
<dd>
<p class="para">
A POSIX extended regular expression.
</p>
</dd>
<dt>
<code class="parameter">replacement</code></dt>
<dd>
<p class="para">
If <code class="parameter">pattern</code> contains parenthesized substrings,
<code class="parameter">replacement</code> may contain substrings of the form
<em>\<span class="replaceable">digit</span></em>, which will be
replaced by the text matching the digit'th parenthesized substring;
<em>\0</em> will produce the entire contents of string.
Up to nine substrings may be used. Parentheses may be nested, in which
case they are counted by the opening parenthesis.
</p>
</dd>
<dt>
<code class="parameter">string</code></dt>
<dd>
<p class="para">
The input string.
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.eregi-replace-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
The modified string is returned. If no matches are found in
<code class="parameter">string</code>, then it will be returned unchanged.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.eregi-replace-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-6012">
<p><strong>Example #1 Highlight search results</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$pattern </span><span style="color: #007700">= </span><span style="color: #DD0000">'(>[^<]*)('</span><span style="color: #007700">. </span><span style="color: #0000BB">quotemeta</span><span style="color: #007700">(</span><span style="color: #0000BB">$_GET</span><span style="color: #007700">[</span><span style="color: #DD0000">'search'</span><span style="color: #007700">]) .</span><span style="color: #DD0000">')'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$replacement </span><span style="color: #007700">= </span><span style="color: #DD0000">'\\1<span class="search">\\2</span>'</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$body </span><span style="color: #007700">= </span><span style="color: #0000BB">eregi_replace</span><span style="color: #007700">(</span><span style="color: #0000BB">$pattern</span><span style="color: #007700">, </span><span style="color: #0000BB">$replacement</span><span style="color: #007700">, </span><span style="color: #0000BB">$body</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.eregi-replace-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"><span class="function"><a href="function.ereg.html" class="function" rel="rdfs-seeAlso">ereg()</a> - Regular expression match</span></li>
<li class="member"><span class="function"><a href="function.eregi.html" class="function" rel="rdfs-seeAlso">eregi()</a> - Case insensitive regular expression match</span></li>
<li class="member"><span class="function"><a href="function.ereg-replace.html" class="function" rel="rdfs-seeAlso">ereg_replace()</a> - Replace regular expression</span></li>
<li class="member"><span class="function"><a href="function.preg-replace.html" class="function" rel="rdfs-seeAlso">preg_replace()</a> - Perform a regular expression search and replace</span></li>
<li class="member"><span class="function"><a href="function.quotemeta.html" class="function" rel="rdfs-seeAlso">quotemeta()</a> - Quote meta characters</span></li>
</ul>
</p>
</div>
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