title: How to compare two array with case insensitive string
body: <pre><code>$arr1 = [&quot;C&quot;,&quot;C++&quot;,&quot;Physics&quot;,&quot;Matlab&quot;,&quot;Python&quot;,&quot;PHP&quot;,&quot;SQL&quot;,&quot;FORTRAN&quot;,&quot;React js&quot;,&quot;C+&quot;,&quot;Flutter&quot;,&quot;JAVA 123&quot;,&quot;Jupyter NotebOOOk&quot;];
  $arr2 = [&quot;C&quot;,&quot;C++&quot;,&quot;Physics&quot;,&quot;Matlab&quot;,&quot;Python&quot;,&quot;PHP&quot;,&quot;SQL&quot;,&quot;FORTRAN&quot;,&quot;React js&quot;,&quot;C+&quot;,&quot;Flutter&quot;,&quot;JAVA 123&quot;,&quot;Jupyter Noteboook&quot;];
  </code></pre>
  <p>These are two array i want to get the array_diff with case_senstive string</p>
  <p>Like in Arr1 the last element is Juypter NotebOOK and in Arr2 the last element is Jupter Noteboook the string</p>
  <p>Anyone can help me with this</p>