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<h1>PHP ksort() Function</h1>
<hr />
<a href="php_ref_array.asp"><img class="navup" src="../images/up.gif" alt="PHP Array Reference" border="0" /> Complete PHP Array Reference</a>
<hr />
<h2>Definition and Usage</h2>
<p>The ksort() function sorts an array by the keys. The values
keep their original keys.</p>
<p>This function returns TRUE on success, or FALSE on
failure.</p>
<h2>Syntax</h2>
<table class="ex" cellspacing="0" border="1" width="100%">
<tr>
<td>
<pre>ksort(array,sorttype)</pre>
</td>
</tr>
</table>
<br />
<table class="ex" cellspacing="0" border="1" width="100%" cellpadding="3">
<tr>
<th align="left" valign="top" width="20%">Parameter</th>
<th align="left" valign="top" width="80%">Description</th>
</tr>
<tr>
<td valign="top">array</td>
<td valign="top">Required. Specifies the array to sort</td>
</tr>
<tr>
<td valign="top">sorttype</td>
<td valign="top">Optional. Specifies how to sort the array values. Possible
values:
<ul>
<li>SORT_REGULAR - Default. Treat values as they are (don't change types)</li>
<li>SORT_NUMERIC - Treat values numerically</li>
<li>SORT_STRING - Treat values as strings</li>
<li>SORT_LOCALE_STRING - Treat values as strings, based on local
settings</li>
</ul>
</td>
</tr>
</table>
<br />
<hr />
<h2>Example</h2>
<table class="ex" cellspacing="0" border="1" width="100%" id="table13">
<tr>
<td>
<pre><?php
$my_array = array("a" => "Dog", "b" => "Cat", "c" => "Horse");</pre>
<pre>ksort($my_array);
print_r($my_array);
?></pre>
</td>
</tr>
</table>
<p>The output of the code above will be:</p>
<table class="ex" cellspacing="0" border="1" width="100%" id="table14">
<tr>
<td>
<pre>Array
(
[a] => Dog
[b] => Cat
[c] => Horse
) </pre>
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<a href="php_ref_array.asp"><img class="navup" src="../images/up.gif" alt="PHP Array Reference" border="0" /> Complete PHP Array Reference</a>
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