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<?xml version="1.0" encoding="utf-8"?>
<!-- $Revision$ -->
<refentry xml:id="function.imagexbm" xmlns="http://docbook.org/ns/docbook">
<refnamediv>
<refname>imagexbm</refname>
<refpurpose>Output an XBM image to browser or file</refpurpose>
</refnamediv>
<refsect1 role="description">
&reftitle.description;
<methodsynopsis>
<type>bool</type><methodname>imagexbm</methodname>
<methodparam><type>GdImage</type><parameter>image</parameter></methodparam>
<methodparam><type class="union"><type>string</type><type>null</type></type><parameter>filename</parameter></methodparam>
<methodparam choice="opt"><type class="union"><type>int</type><type>null</type></type><parameter>foreground_color</parameter><initializer>&null;</initializer></methodparam>
</methodsynopsis>
<para>
Outputs or save an <acronym>XBM</acronym> version of the given
<parameter>image</parameter>.
</para>
<note>
<simpara>
<function>imagexbm</function> doesn't apply any padding, so the image width
has to be a multiple of 8.
This restriction does no longer apply as of PHP 7.0.9.
</simpara>
</note>
</refsect1>
<refsect1 role="parameters">
&reftitle.parameters;
<para>
<variablelist>
&gd.image.description;
<varlistentry>
<term><parameter>filename</parameter></term>
<listitem>
<para>The path to save the file to, given as &string;. If &null;, the raw image stream will be output directly.</para>
<para>
The <parameter>filename</parameter> (without the .xbm extension) is also
used for the C identifiers of the <acronym>XBM</acronym>, whereby non
alphanumeric characters of the current locale are substituted by
underscores. If <parameter>filename</parameter> is set to &null;,
<literal>image</literal> is used to build the C identifiers.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>foreground_color</parameter></term>
<listitem>
<para>
You can set the foreground color with this parameter by setting an
identifier obtained from <function>imagecolorallocate</function>.
The default foreground color is black. All other colors are treated as
background.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</refsect1>
<refsect1 role="returnvalues">
&reftitle.returnvalues;
<para>
&return.success;
</para>
&gd.return.trueonerror;
</refsect1>
<refsect1 role="changelog">
&reftitle.changelog;
<informaltable>
<tgroup cols="2">
<thead>
<row>
<entry>&Version;</entry>
<entry>&Description;</entry>
</row>
</thead>
<tbody>
&gd.changelog.image-param;
<row>
<entry>8.0.0</entry>
<entry>
<parameter>foreground_color</parameter> is now nullable.
</entry>
</row>
<row>
<entry>8.0.0</entry>
<entry>
The fourth parameter, which was unused, has been removed.
</entry>
</row>
</tbody>
</tgroup>
</informaltable>
</refsect1>
<refsect1 role="examples">
&reftitle.examples;
<para>
<example>
<title>Saving an XBM file</title>
<programlisting role="php">
<![CDATA[
<?php
// Create a blank image and add some text
$im = imagecreatetruecolor(120, 20);
$text_color = imagecolorallocate($im, 233, 14, 91);
imagestring($im, 1, 5, 5, 'A Simple Text String', $text_color);
// Save the image
imagexbm($im, 'simpletext.xbm');
?>
]]>
</programlisting>
</example>
</para>
<para>
<example>
<title>Saving an XBM file with a different foreground color</title>
<programlisting role="php">
<![CDATA[
<?php
// Create a blank image and add some text
$im = imagecreatetruecolor(120, 20);
$text_color = imagecolorallocate($im, 233, 14, 91);
imagestring($im, 1, 5, 5, 'A Simple Text String', $text_color);
// Set a replacement foreground color
$foreground_color = imagecolorallocate($im, 255, 0, 0);
// Save the image
imagexbm($im, NULL, $foreground_color);
?>
]]>
</programlisting>
</example>
</para>
</refsect1>
</refentry>
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