title: Issue with fopen and fwrite PHP
body: <p>I'm having issues writing to the file VarLog.txt, It's not read only (In properties), I'm trying to write the Variable or SQL Query as a string in the logs file that I created, I also wrote a check to see if VarLog exists, and if it doesn't, make it. Here's the Code</p>
  
  <pre><code>   if (!file_exists( "VarLog.txt")) {
      $fh = fopen("VarLog.txt", 'w') or die("can't open file");
      fclose($fh);
  }
  function anti_injection($sql) {
     $fp = fopen("VarLog.txt", "a+");  
     $sql = preg_replace(sql_regcase("/(from|select|insert|delete|where|drop table|show tables|#|\*|--|\\\\)/"),"",$sql);
     $sql = trim($sql);
     $sql = strip_tags($sql);
     $sql = addslashes($sql);
     fwrite($fp, "SQL Query/String: $sql"); 
     fclose($fp);
     return $sql;
  }
  </code></pre>
  
  <p>An Example of a $_POST variable</p>
  
  <pre><code>anti_injection($_POST['email']);
  </code></pre>