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<div class="refnamediv">
<h1 class="refname">eregi</h1>
<p class="verinfo">(PHP 4, PHP 5)</p><p class="refpurpose"><span class="refname">eregi</span> — <span class="dc-title">Case insensitive regular expression match</span></p>
</div>
<div id="function.eregi-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-match.html" class="function">preg_match()</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-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">int</span> <span class="methodname"><strong>eregi</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$pattern</code></span>
, <span class="methodparam"><span class="type">string</span> <code class="parameter">$string</code></span>
[, <span class="methodparam"><span class="type">array</span> <code class="parameter reference">&$regs</code></span>
] )</div>
<p class="para rdfs-comment">
This function is identical to <span class="function"><a href="function.ereg.html" class="function">ereg()</a></span> except that it
ignores case distinction when matching alphabetic characters.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.eregi-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">pattern</code></dt>
<dd>
<p class="para">
Case insensitive regular expression.
</p>
</dd>
<dt>
<code class="parameter">string</code></dt>
<dd>
<p class="para">
The input string.
</p>
</dd>
<dt>
<code class="parameter">regs</code></dt>
<dd>
<p class="para">
If matches are found for parenthesized substrings of
<code class="parameter">pattern</code> and the function is called with the
third argument <code class="parameter">regs</code>, the matches will be stored
in the elements of the array <code class="parameter">regs</code>.
</p>
<p class="para">
<var class="varname"><var class="varname">$regs[1]</var></var> will contain the substring which starts at
the first left parenthesis; <var class="varname"><var class="varname">$regs[2]</var></var> will contain
the substring starting at the second, and so on.
<var class="varname"><var class="varname">$regs[0]</var></var> will contain a copy of the complete string
matched.
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.eregi-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns the length of the matched string if a match for
<code class="parameter">pattern</code> was found in <code class="parameter">string</code>,
or <strong><code>FALSE</code></strong> if no matches were found or an error occurred.
</p>
<p class="para">
If the optional parameter <code class="parameter">regs</code> was not passed or
the length of the matched string is <em>0</em>, this function returns <em>1</em>.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.eregi-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-6013">
<p><strong>Example #1 <span class="function"><strong>eregi()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$string </span><span style="color: #007700">= </span><span style="color: #DD0000">'XYZ'</span><span style="color: #007700">;<br />if (</span><span style="color: #0000BB">eregi</span><span style="color: #007700">(</span><span style="color: #DD0000">'z'</span><span style="color: #007700">, </span><span style="color: #0000BB">$string</span><span style="color: #007700">)) {<br /> echo </span><span style="color: #DD0000">"'</span><span style="color: #0000BB">$string</span><span style="color: #DD0000">' contains a 'z' or 'Z'!"</span><span style="color: #007700">;<br />}<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
</div>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.eregi-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.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.eregi-replace.html" class="function" rel="rdfs-seeAlso">eregi_replace()</a> - Replace regular expression case insensitive</span></li>
<li class="member"><span class="function"><a href="function.preg-match.html" class="function" rel="rdfs-seeAlso">preg_match()</a> - Perform a regular expression match</span></li>
<li class="member"><span class="function"><a href="function.stripos.html" class="function" rel="rdfs-seeAlso">stripos()</a> - Find the position of the first occurrence of a case-insensitive substring in a string</span></li>
<li class="member"><span class="function"><a href="function.stristr.html" class="function" rel="rdfs-seeAlso">stristr()</a> - Case-insensitive strstr</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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