title: add INT with STRING in PHP
body: <p>I am trying to add the int with strings in PHP but I could get a helpful answer on StackOverflow and other website communities.</p>
  <p>I want the code separate the ALPHABETS and NUMBER and then add the value in NUMBER and again JOIN the ALPHABETS AND ADDED NUMBER together.</p>
  <p>How I achieve this, Please help.</p>
  <p>Example:</p>
  <pre><code>$mynumber  = 'SBI0001';
  $addValue = '1';
  </code></pre>
  <p>It will be <code>'SBI0002'</code> in PHP.</p>