Pro PHP- Patterns, Frameworks, Testing and More

(^174) CHAPTER 11 ■ SPL FILE AND DIRECTORY HANDLING
} else {
$this->fp = fopen($filename, $mode, $use_include_path);
}
if(!$this->fp) {
throw new Exception("Cannot read file");
}
//Get the column map
$this->map = $this->fgetcsv();
$this->currentLine = 0;
}
function fgetcsv($delimiter = ',', $enclosure = '"') {
return fgetcsv($this->fp, 0, $delimiter, $enclosure);
}
function key() {
return $this->currentLine;
}
function current() {
/*

• The fgetcsv method increments the file pointer


• so you must first record the file pointer,


• get the data, and return the file pointer.


• Only the next() method should increment the


• pointer during operation.
  /
  $fpLoc = ftell($this->fp);
  $data = $this->fgetcsv();
  fseek($this->fp, $fpLoc);
  return array_combine($this->map, $data);
  }
  function valid() {
  //Check for end-of-file
  if(feof($this->fp)) {
  return false;
  }
  /


• Again, need to prevent the file pointer


• from being advanced. This check prevents


• a blank line at the end of file returning


• as a null value.
  */
  McArthur_819-9C11.fm Page 174 Thursday, February 28, 2008 7:49 AM