php遍历CSV类实例_PHP教程

php遍历CSV类实例

2020-09-18 15:49不吃皮蛋 PHP教程

这篇文章主要介绍了php遍历CSV类,实例分析了php针对csv文件的打开、读取及遍历的技巧,非常具有实用价值,需要的朋友可以参考下

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

									?>