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<title>Converts a palette based image to true color</title>
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<h1 class="refname">imagepalettetotruecolor</h1>
<p class="verinfo">(PHP 5 >= 5.5.0)</p><p class="refpurpose"><span class="refname">imagepalettetotruecolor</span> — <span class="dc-title">Converts a palette based image to true color</span></p>
</div>
<div class="refsect1 description" id="refsect1-function.imagepalettetotruecolor-description">
<h3 class="title">Description</h3>
<div class="methodsynopsis dc-description">
<span class="type">bool</span> <span class="methodname"><strong>imagepalettetotruecolor</strong></span>
( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$src</code></span>
)</div>
<p class="para rdfs-comment">
Converts a palette based image, created by functions like
<span class="function"><a href="function.imagecreate.html" class="function">imagecreate()</a></span> to a true color image, like
<span class="function"><a href="function.imagecreatetruecolor.html" class="function">imagecreatetruecolor()</a></span>.
</p>
</div>
<div class="refsect1 parameters" id="refsect1-function.imagepalettetotruecolor-parameters">
<h3 class="title">Parameters</h3>
<p class="para">
<dl>
<dt>
<span class="term"><em><code class="parameter">
image</code></em></span><dd>
<p class="para">An image resource, returned by one of the image creation functions,
such as <span class="function"><a href="function.imagecreatetruecolor.html" class="function">imagecreatetruecolor()</a></span>.</p></dd>
</dt>
</dl>
</p>
</div>
<div class="refsect1 returnvalues" id="refsect1-function.imagepalettetotruecolor-returnvalues">
<h3 class="title">Return Values</h3>
<p class="para">
Returns <strong><code>TRUE</code></strong> if the convertion was complete, or if the source image already
is a true color image, otherwise <strong><code>FALSE</code></strong> is returned.
</p>
</div>
<div class="refsect1 examples" id="refsect1-function.imagepalettetotruecolor-examples">
<h3 class="title">Examples</h3>
<p class="para">
<div class="example" id="example-3262">
<p><strong>Example #1
Converts any image resource to true color
</strong></p>
<div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB"><?php<br /></span><span style="color: #FF8000">// Backwards compatiblity<br /></span><span style="color: #007700">if(!</span><span style="color: #0000BB">function_exists</span><span style="color: #007700">(</span><span style="color: #DD0000">'imagepalettetotruecolor'</span><span style="color: #007700">))<br />{<br /> function </span><span style="color: #0000BB">imagepalettetotruecolor</span><span style="color: #007700">(&</span><span style="color: #0000BB">$src</span><span style="color: #007700">)<br /> {<br /> if(</span><span style="color: #0000BB">imageistruecolor</span><span style="color: #007700">(</span><span style="color: #0000BB">$src</span><span style="color: #007700">))<br /> {<br /> return(</span><span style="color: #0000BB">true</span><span style="color: #007700">);<br /> }<br /><br /> </span><span style="color: #0000BB">$dst </span><span style="color: #007700">= </span><span style="color: #0000BB">imagecreatetruecolor</span><span style="color: #007700">(</span><span style="color: #0000BB">imagesx</span><span style="color: #007700">(</span><span style="color: #0000BB">$src</span><span style="color: #007700">), </span><span style="color: #0000BB">imagesy</span><span style="color: #007700">(</span><span style="color: #0000BB">$src</span><span style="color: #007700">));<br /><br /> </span><span style="color: #0000BB">imagecopy</span><span style="color: #007700">(</span><span style="color: #0000BB">$dst</span><span style="color: #007700">, </span><span style="color: #0000BB">$src</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">, </span><span style="color: #0000BB">0</span><span style="color: #007700">, </span><span style="color: #0000BB">imagesx</span><span style="color: #007700">(</span><span style="color: #0000BB">$src</span><span style="color: #007700">), </span><span style="color: #0000BB">imagesy</span><span style="color: #007700">(</span><span style="color: #0000BB">$src</span><span style="color: #007700">));<br /> </span><span style="color: #0000BB">imagedestroy</span><span style="color: #007700">(</span><span style="color: #0000BB">$src</span><span style="color: #007700">);<br /><br /> </span><span style="color: #0000BB">$src </span><span style="color: #007700">= </span><span style="color: #0000BB">$dst</span><span style="color: #007700">;<br /><br /> return(</span><span style="color: #0000BB">true</span><span style="color: #007700">);<br /> }<br />}<br /><br /></span><span style="color: #FF8000">// Helper closure<br /></span><span style="color: #0000BB">$typeof </span><span style="color: #007700">= function() use(</span><span style="color: #0000BB">$im</span><span style="color: #007700">)<br />{<br /> echo </span><span style="color: #DD0000">'typeof($im) = ' </span><span style="color: #007700">. (</span><span style="color: #0000BB">imageistruecolor</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">) ? </span><span style="color: #DD0000">'true color' </span><span style="color: #007700">: </span><span style="color: #DD0000">'palette'</span><span style="color: #007700">), </span><span style="color: #0000BB">PHP_EOL</span><span style="color: #007700">;<br />};<br /><br /></span><span style="color: #FF8000">// Create a palette based image<br /></span><span style="color: #0000BB">$im </span><span style="color: #007700">= </span><span style="color: #0000BB">imagecreate</span><span style="color: #007700">(</span><span style="color: #0000BB">100</span><span style="color: #007700">, </span><span style="color: #0000BB">100</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$typeof</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">// Convert it to true color<br /></span><span style="color: #0000BB">imagepalettetotruecolor</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$typeof</span><span style="color: #007700">();<br /><br /></span><span style="color: #FF8000">// Free the memory<br /></span><span style="color: #0000BB">imagedestroy</span><span style="color: #007700">(</span><span style="color: #0000BB">$im</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:</p></div>
<div class="example-contents screen">
<div class="cdata"><pre>
typeof($im) = palette
typeof($im) = true color
</pre></div>
</div>
</div>
</p>
</div>
<div class="refsect1 seealso" id="refsect1-function.imagepalettetotruecolor-seealso">
<h3 class="title">See Also</h3>
<p class="para">
<ul class="simplelist">
<li class="member"> <span class="function"><a href="function.imagecreatetruecolor.html" class="function" rel="rdfs-seeAlso">imagecreatetruecolor()</a> - Create a new true color image</span></li>
<li class="member"> <span class="function"><a href="function.imageistruecolor.html" class="function" rel="rdfs-seeAlso">imageistruecolor()</a> - Finds whether an image is a truecolor image</span></li>
</ul>
</p>
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