常用函数整理 4（excel csv)

<?php

/**
* csv_get_lines 读取CSV文件中的某几行数据
* @param $csvfile csv文件路径
* @param $lines 读取行数
* @param $offset 起始行数
* @return array
* */
function csv_get_lines($csvfile, $lines=1000, $offset = 0) {
if(!$fp = fopen($csvfile, 'r')) {
return false;
}
$i = $j = 0;
while (false !== ($line = fgets($fp))) {
if($i++ < $offset) {
continue;
}
break;
}
$data = array();
while(($j++ < $lines) && !feof($fp)) {
$data[] = fgetcsv($fp);
}
fclose($fp);

return $data;
}?>

<?php
require('PHPExcel.php');//引入PHP EXCEL类  可以通过此链接下载:http://download-codeplex.sec.s-msft.com/Download/Release?ProjectName=phpexcel&DownloadId=809023&FileTime=130382506270130000&Build=21018
function format_excel2array($filePath='',$sheet=0){
if(empty($filePath) or !file_exists($filePath)){die('file not exists');}
$PHPReader = new PHPExcel_Reader_Excel2007(); //建立reader对象
if(!$PHPReader->canRead($filePath)){
$PHPReader = new PHPExcel_Reader_Excel5();
if(!$PHPReader->canRead($filePath)){
echo 'no Excel';
return ;
}
}
$PHPExcel = $PHPReader->load($filePath); //建立excel对象
$currentSheet = $PHPExcel->getSheet($sheet); //**读取excel文件中的指定工作表*/
$allColumn = $currentSheet->getHighestColumn(); //**取得最大的列号*/
$allRow = $currentSheet->getHighestRow(); //**取得一共有多少行*/
$data = array();
for($rowIndex=1;$rowIndex<=$allRow;$rowIndex++){ //循环读取每个单元格的内容。注意行从1开始，列从A开始
for($colIndex='A';$colIndex<=$allColumn;$colIndex++){
$addr = $colIndex.$rowIndex;
$cell = $currentSheet->getCell($addr)->getValue();
if($cell instanceof PHPExcel_RichText){ //富文本转换字符串
$cell = $cell->__toString();
}
$data[$rowIndex][$colIndex] = $cell;
}
}
return $data;
}

?>