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。