title: For loop is not running for float values
body: <p>i have a for loop like below</p>
  
  <pre><code>&lt;?php 
  
   for($i=0;$i&lt;=10;$i+0.4){
  
   echo $i."&lt;br&gt;";
   }
  
   ?&gt;
  </code></pre>
  
  <p>this code prints the value of i till 9.6 not 10.</p>
  
  <p>why it returns the value of i=10 at last.</p>