title: Insert phone number into database
body: <p>I have a input for user to enter phone number and I use <code>int();</code> before I insert it into database.</p>
  
  <p>I insert some phone number 0398765899->398765899 into DB</p>
  
  <p>PHP <code>int();</code> auto remove the first 0, it seems fine but I when I try</p>
  
  <pre><code>   $var=0177;
      echo $new=(int)$var;
  </code></pre>
  
  <p>in PHP file, the result become <code>127</code></p>