bit plane
 }</code></pre>

<h2 id="B.-bit_planes-bit_plane_array-data-type">B. $bit_planes = bit_plane_array($data,$type)</h2>

<p>The <code>bit_plane_array()</code> function is doing the same as the <code>bit_plane()</code> function. Only the implementation is different, that it needs to iterate through every array element and also through all eight bits. Every Pixel value is binary ANDed <code>&amp;</code> with a Mask. The same Option <code>$type</code> exists, to keep the Bit in its original position &qu