title: How to use 3 dimensional array in PHP
body: <p>I'm doing some image processing in php and normally I never use array in php before. </p>
  
  <p>I have to keep the value of rgb value of hold image in 3 dimensional array. </p>
  
  <p>For example, <code>rgbArray[][][]</code></p>
  
  <p>the first <code>[]</code> is represent th weight, the second<code>[]</code> use to keep height and the last one is use to keep either red,greed or blue. How can i create an array in php that can keep this set of value.</p>
  
  <p>Thank you in advance. </p>