php遍历CSV类实例

本文实例讲述了php遍历CSV类。分享给大家供大家参考。具体如下：

    <?php
    class CSVIterator implements Iterator
    { 
      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
    ?>

希望本文所述对大家的php程序设计有所帮助。