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<h1 class="refname">strcmp</h1>
<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">strcmp</span> — <span class="dc-title">Binary safe string comparison</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.strcmp-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">int</span> <span class="methodname"><strong>strcmp</strong></span>
( <span class="methodparam"><span class="type">string</span> <code class="parameter">$str1</code></span>
, <span class="methodparam"><span class="type">string</span> <code class="parameter">$str2</code></span>
)</div>
<p class="simpara">
Note that this comparison is case sensitive.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.strcmp-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<code class="parameter">str1</code></dt>
<dd>
<p class="para">
The first string.
</p>
</dd>
<dt>
<code class="parameter">str2</code></dt>
<dd>
<p class="para">
The second string.
</p>
</dd>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.strcmp-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns < 0 if <code class="parameter">str1</code> is less than
<code class="parameter">str2</code>; > 0 if <code class="parameter">str1</code>
is greater than <code class="parameter">str2</code>, and 0 if they are
equal.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.strcmp-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-6093">
<p><strong>Example #1 <span class="function"><strong>strcmp()</strong></span> example</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />$var1 </span><span style="color: #007700">= </span><span style="color: #DD0000">"Hello"</span><span style="color: #007700">;<br /></span><span style="color: #0000BB">$var2 </span><span style="color: #007700">= </span><span style="color: #DD0000">"hello"</span><span style="color: #007700">;<br />if (</span><span style="color: #0000BB">strcmp</span><span style="color: #007700">(</span><span style="color: #0000BB">$var1</span><span style="color: #007700">, </span><span style="color: #0000BB">$var2</span><span style="color: #007700">) !== </span><span style="color: #0000BB">0</span><span style="color: #007700">) {<br /> echo </span><span style="color: #DD0000">'$var1 is not equal to $var2 in a case sensitive string comparison'</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.strcmp-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"><span class="function"><a href="function.strcasecmp.html" class="function" rel="rdfs-seeAlso">strcasecmp()</a> - Binary safe case-insensitive string comparison</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.substr-compare.html" class="function" rel="rdfs-seeAlso">substr_compare()</a> - Binary safe comparison of two strings from an offset, up to length characters</span></li>
<li class="member"><span class="function"><a href="function.strncmp.html" class="function" rel="rdfs-seeAlso">strncmp()</a> - Binary safe string comparison of the first n characters</span></li>
<li class="member"><span class="function"><a href="function.strstr.html" class="function" rel="rdfs-seeAlso">strstr()</a> - Find the first occurrence of a string</span></li>
<li class="member"><span class="function"><a href="function.substr.html" class="function" rel="rdfs-seeAlso">substr()</a> - Return part of a string</span></li>
</ul>
</p>
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