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<title>Retrieve information about the currently installed GD library</title>
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<div class="refnamediv">
<h1 class="refname">gd_info</h1>
<p class="verinfo">(PHP 4 >= 4.3.0, PHP 5)</p><p class="refpurpose"><span class="refname">gd_info</span> — <span class="dc-title">Retrieve information about the currently installed GD library</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.gd-info-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">array</span> <span class="methodname"><strong>gd_info</strong></span>
( <span class="methodparam">void</span>
)</div>
<p class="para rdfs-comment">
Gets information about the version and capabilities of the installed GD
library.
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.gd-info-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns an associative array.
</p>
<p class="para">
<table class="doctable table">
<caption><strong>Elements of array returned by <span class="function"><strong>gd_info()</strong></span></strong></caption>
<thead>
<tr>
<th>Attribute</th>
<th>Meaning</th>
</tr>
</thead>
<tbody class="tbody">
<tr>
<td>GD Version</td>
<td><span class="type"><a href="language.types.string.html" class="type string">string</a></span> value describing the installed
<em>libgd</em> version.</td>
</tr>
<tr>
<td>FreeType Support</td>
<td><span class="type"><a href="language.types.boolean.html" class="type boolean">boolean</a></span> value. <strong><code>TRUE</code></strong>
if FreeType Support is installed.</td>
</tr>
<tr>
<td>FreeType Linkage</td>
<td><span class="type"><a href="language.types.string.html" class="type string">string</a></span> value describing the way in which
FreeType was linked. Expected values are: 'with freetype',
'with TTF library', and 'with unknown library'. This element will
only be defined if <em>FreeType Support</em> evaluated to
<strong><code>TRUE</code></strong>.</td>
</tr>
<tr>
<td>T1Lib Support</td>
<td><span class="type"><a href="language.types.boolean.html" class="type boolean">boolean</a></span> value. <strong><code>TRUE</code></strong>
if <em>T1Lib</em> support is included.</td>
</tr>
<tr>
<td>GIF Read Support</td>
<td><span class="type"><a href="language.types.boolean.html" class="type boolean">boolean</a></span> value. <strong><code>TRUE</code></strong>
if support for <em class="emphasis">reading</em> <em>GIF</em>
images is included.</td>
</tr>
<tr>
<td>GIF Create Support</td>
<td><span class="type"><a href="language.types.boolean.html" class="type boolean">boolean</a></span> value. <strong><code>TRUE</code></strong>
if support for <em class="emphasis">creating</em> <em>GIF</em>
images is included.</td>
</tr>
<tr>
<td>JPEG Support</td>
<td><span class="type"><a href="language.types.boolean.html" class="type boolean">boolean</a></span> value. <strong><code>TRUE</code></strong>
if <em>JPEG</em> support is included.</td>
</tr>
<tr>
<td>PNG Support</td>
<td><span class="type"><a href="language.types.boolean.html" class="type boolean">boolean</a></span> value. <strong><code>TRUE</code></strong>
if <em>PNG</em> support is included.</td>
</tr>
<tr>
<td>WBMP Support</td>
<td><span class="type"><a href="language.types.boolean.html" class="type boolean">boolean</a></span> value. <strong><code>TRUE</code></strong>
if <em>WBMP</em> support is included.</td>
</tr>
<tr>
<td>XBM Support</td>
<td><span class="type"><a href="language.types.boolean.html" class="type boolean">boolean</a></span> value. <strong><code>TRUE</code></strong>
if <em>XBM</em> support is included.</td>
</tr>
<tr>
<td>WebP Support</td>
<td><span class="type"><a href="language.types.boolean.html" class="type boolean">boolean</a></span> value. <strong><code>TRUE</code></strong>
if <em>WebP</em> support is included.</td>
</tr>
</tbody>
</table>
</p>
<blockquote class="note"><p><strong class="note">Note</strong>:
<p class="para">
Previous to PHP 5.3.0, the <em>JPEG Support</em> attribute was named
<em>JPG Support</em>.
</p>
</p></blockquote>
</div>
<div class="refsect1 examples" id="refsect1-function.gd-info-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-3169">
<p><strong>Example #1 Using <span class="function"><strong>gd_info()</strong></span></strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br />var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">gd_info</span><span style="color: #007700">());<br /></span><span style="color: #0000BB">?></span>
</span>
</code></div>
</div>
<div class="example-contents"><p>The above example will output
something similar to:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
array(9) {
["GD Version"]=>
string(24) "bundled (2.0 compatible)"
["FreeType Support"]=>
bool(false)
["T1Lib Support"]=>
bool(false)
["GIF Read Support"]=>
bool(true)
["GIF Create Support"]=>
bool(false)
["JPEG Support"]=>
bool(false)
["PNG Support"]=>
bool(true)
["WBMP Support"]=>
bool(true)
["XBM Support"]=>
bool(false)
}
</pre></div>
</div>
</div>
</p>
</div>
<div class="refsect1 changelog" id="refsect1-function.gd-info-changelog">
<h3 class="title">Changelog</h3>
<p class="para">
<table class="doctable informaltable">
<thead>
<tr>
<th>Version</th>
<th>Description</th>
</tr>
</thead>
<tbody class="tbody">
<tr>
<td>5.5.0</td>
<td>
<em>WebP Support</em> added.
</td>
</tr>
<tr>
<td>5.3.0</td>
<td>
<em>JPG Support</em> attribute renamed to <em>JPEG Support</em>.
</td>
</tr>
</tbody>
</table>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.gd-info-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.imagepng.html" class="function" rel="rdfs-seeAlso">imagepng()</a> - Output a PNG image to either the browser or a file</span></li>
<li class="member"> <span class="function"><a href="function.imagejpeg.html" class="function" rel="rdfs-seeAlso">imagejpeg()</a> - Output image to browser or file</span></li>
<li class="member"> <span class="function"><a href="function.imagegif.html" class="function" rel="rdfs-seeAlso">imagegif()</a> - Output image to browser or file</span></li>
<li class="member"> <span class="function"><a href="function.imagewbmp.html" class="function" rel="rdfs-seeAlso">imagewbmp()</a> - Output image to browser or file</span></li>
<li class="member"> <span class="function"><a href="function.imagetypes.html" class="function" rel="rdfs-seeAlso">imagetypes()</a> - Return the image types supported by this PHP build</span></li>
</ul>
</p>
</div>
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