title: file_get_contents + preg_match > find a line starting with a word
body: <p>I do a <code>file_get_contents</code> to get a long file and I would like to find the line (there is only one) which starts with "MyParam" (for example).
  I don't want to cut the file line by line, I want to do it with a <code>preg_match</code> only (or equivalent).
  I've tried many things but no success.
  Thanks in advance</p>
  
  <p>FILE CONTENT</p>
  
  <pre><code>//some text
  //some text
  //MyParam "red"
  //some text
  MyParam "blue"
  Some text
  // Some text
  </code></pre>
  
  <p>And I would like to get <code>MyParam "blue"</code> only.</p>