title: Write to specific line in PHP
body: <p>I'm writing some code and I need to write a number to a specific line. Here's what I have so far:</p>
  
  <pre><code>&lt;?php
  
  $statsloc = getcwd() . "/stats/stats.txt";
  $handle = fopen($statsloc, 'r+');
  
  for($linei = 0; $linei &lt; $zone; $linei++) $line = fgets($handle);
  $line = trim($line);
  echo $line;
  
  $line++;
  echo $line;
  </code></pre>
  
  <p>I don't know where to continue after this. I need to write $line to that line, while maintaining all the other lines.</p>