title: Validate that input string does not exceed word limit
body: <p>I want to count the words in a specific string so that I can validate it and prevent users to write more than, for example, 100 words.</p>
  <p>I wrote this function, but I don't think it's effective enough. I used the explode function with space as a delimiter, but what if the user puts two spaces instead of one? Can you give me a better way to do that?</p>
  <pre><code>function isValidLength($text , $length){
    
     $text  = explode(&quot; &quot; , $text );
     if(count($text) &gt; $length)
            return false;
     else
            return true;
  }
  </code></pre>