php-doc-en/reference/image/functions/imagerotate.xml
Aidan Lister 31248619d1 Added example
git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@169869 c90b9560-bf6c-de11-be94-00142212c4b1
2004-10-04 07:09:47 +00:00

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<?xml version="1.0" encoding="iso-8859-1"?>
<!-- $Revision: 1.5 $ -->
<refentry id="function.imagerotate">
<refnamediv>
<refname>imagerotate</refname>
<refpurpose>Rotate an image with a given angle</refpurpose>
</refnamediv>
<refsect1>
<title>Description</title>
<methodsynopsis>
<type>resource</type><methodname>imagerotate</methodname>
<methodparam><type>resource</type><parameter>src_im</parameter></methodparam>
<methodparam><type>float</type><parameter>angle</parameter></methodparam>
<methodparam><type>int</type><parameter>bgd_color</parameter></methodparam>
</methodsynopsis>
<para>
Rotates the <parameter>src_im</parameter> image using a given
<parameter>angle</parameter> in degrees. <parameter>bgd_color</parameter>
specifies the color of the uncovered zone after the rotation.
</para>
<para>
The center of rotation is the center of the image, and the rotated
image is scaled down so that the whole rotated image fits in the
destination image - the edges are not clipped.
</para>
<para>
<example>
<title>Rotate an image 180 degrees</title>
<para>
This example rotates an image 180 degrees - upside down.
</para>
<programlisting role="php">
<![CDATA[
// File and rotation
$filename = 'test.jpg';
$degrees = 180;
// Content type
header('Content-type: image/jpeg');
// Load
$source = imagecreatefromjpeg($filename);
// Rotate
$rotate = imagerotate($source, $degrees, 0);
// Output
imagejpeg($rotate);
]]>
</programlisting>
</example>
</para>
&note.bundled.gd;
</refsect1>
</refentry>
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