title: PHP explode a string using a specific word
body: <p>Im trying to explode below string using Intel(R) word to get two processor name to a array </p>
  
  <pre><code>    Ex- 
      Intel(R) Xeon(R) CPU E5620 @ 2.40GHzIntel(R) Xeon(R) CPU E5620 @ 2.40GHz 
      to
      Intel(R) Xeon(R) CPU E5620 @ 2.40GHz
      Intel(R) Xeon(R) CPU E5620 @ 2.40GHz
  </code></pre>
  
  <p>I wrote a code using PHP as below</p>
  
  <pre><code>   $str='Intel(R) Xeon(R) CPU E5620 @ 2.40GHzIntel(R) Xeon(R) CPU E5620 @ 2.40GHz';
     $exp=explode('Intel(R)',$str);
     echo $exp[0];
  </code></pre>
  
  <p>But didn't see any out put, can anyone help me to fix this. Thanks</p>