php 遍历CSV的类用法示例

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<?php
/**
 * 遍历CSV类
 *
 * @param 
 * @arrange （www.idcnote.com）
 **/
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
?>

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