Mine

if (file_exists($this->file) && is_readable($this->file) && is_writable($this->file)) {   echo $this->file . "\n\n";   $contents = file_get_contents($this->file);   $foo = preg_replace($this->search, $this->replace, $contents);			   file_put_contents($this->file, $contents);			   return true;} else {   ...}