title: sprintf - repeating arguments
body: <p>I want to format a string with <code>sprintf</code> but repeating many times an argument. see..</p>
  
  <pre><code>$str = "Str 1: %s - Str 2: %s - Str 2 again: %s";
  </code></pre>
  
  <p>Considering that string to format, I want to repeat the second arg two times.</p>
  
  <pre><code>echo sprintf($str, "I'm string 1", "My name is string 2");
  </code></pre>
  
  <p>And the wanted result like: </p>
  
  <pre><code>Str 1: I'm string 1 - Str 2: My name is string 2 - Str 2 again: My name is string 2
  </code></pre>
  
  <p>There's a way to do that??</p>