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具體如下：

<?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

?>

更多信息請(qǐng)查看IT技術(shù)專欄