CSV を走査する php メソッド csv を走査する php クラス

/**
* CSV ファイルをトラバースする
* 編集: bbs.it-home.org
*/
class CSVIterator は Iterator を実装します
{
 const ROW_SIZE = 4096;

 private $filePointer;
 private $currentElement;
 private $rowCounter;
 private $ delimiter;

 public function __construct( $file, $delimiter = ',' )
 {
 $this->filePointer = fopen( $file, 'r' );
 $this->delimiter = $delimiter;
 }

 public function rewind()
 {
 $this->rowCounter = 0;
 rewind( $this->filePointer );
 }

 public function current()
 {
 $this->currentElement = fgetcsv( $this->filePointer, self::ROW_SIZE, $this->delimiter );
 $this->rowCounter++;
 return $this->currentElement;
 }

 public function key()
 {
 return $this->rowCounter;
 }

 public function next()
 {
 return !feof( $this->filePointer );
 }

 public function valid()
 {
 if( !$this ->next() )
 {
 fclose( $this->filePointer );
 return FALSE;
 }
 return TRUE;
 }

} // end class
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