title: Regex for UK phone number
body: <p>I need to validate uk numbers</p>
  
  <p>Below are sample type of number </p>
  
  <pre><code>01457 341235
  0229  111111
  </code></pre>
  
  <p>+1213 3133143</p>
  
  <p>Optional Plus should be allowed at first postion only</p>
  
  <p>Using this regex but not working</p>
  
  <pre><code>^(?:\W*\d){11}\W*$
  </code></pre>