title: How to get a line after after a certain character in PHP?
body: <p>I use explode() but I can only get before or after keyword in the same line. But if I want a line after keyword For example</p>
  
  <blockquote>
    <p>Hello Google</p>
    
    <p>Good morning Facebook</p>
    
    <p>Good Afternoon Twitter</p>
  </blockquote>
  
  <p>How to get "Good morning Facebook" by using "Google" as keyword for search ? </p>
  
  <p>Line number is not the same in every searching but keyword is the same.</p>
  
  <p>My condition is I can't get all example text as one string. content is in a file and all the file is one string. I have to search specific keyword then I need a whole line after the keyword line.</p>