我正在尝试将 PHPExcel 与 Codeigniter 一起使用，但遇到了问题。我从 PHPExcel 下载中提取了类文件，并将它们放在 Codeigniter 的“应用程序/库”文件夹中。
但是当我尝试加载必要的库时：
$this->load->library('PHPExcel');
$this->load->library('PHPExcel/IOFactory');
我收到错误“不存在的类：IOFactory”。
我已经检查了 iofactory 文件是否在 PHPExcel 文件中，并且它就在那里。我应该将课程放在其他地方吗？我还做错了什么？
【问题讨论】：
标签： php codeigniter phpexcel
试试这样的：
$this->load->library('PHPExcel');
$xl_obj = new PHPExcel();
$reader = PHPExcel_IOFactory::createReader('Excel5');
$reader->setReadDataOnly(true);
$file = $reader->load('/PATH/FILENAME.EXT');
有效！
【讨论】：
我的方法是将 PHPExcel 文件夹放在 /application/libraries 文件夹中，然后在 libraries 文件夹中创建一个包装文件；
PHPExcel.php
<?php
/**
* PHPExcel
*
* Copyright (c) 2006 - 2011 PHPExcel
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* @category PHPExcel
* @package PHPExcel
* @copyright Copyright (c) 2006 - 2011 PHPExcel (http://www.codeplex.com/PHPExcel)
* @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL
* @version 1.7.6, 2011-02-27
*/
/** PHPExcel root directory */
if (!defined('PHPEXCEL_ROOT')) {
define('PHPEXCEL_ROOT', dirname(__FILE__) . '/');
require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php');
}
/**
* PHPExcel
*
* @category PHPExcel
* @package PHPExcel
* @copyright Copyright (c) 2006 - 2011 PHPExcel (http://www.codeplex.com/PHPExcel)
*/
class PHPExcel
{
/**
* Document properties
*
* @var PHPExcel_DocumentProperties
*/
private $_properties;
/**
* Document security
*
* @var PHPExcel_DocumentSecurity
*/
private $_security;
/**
* Collection of Worksheet objects
*
* @var PHPExcel_Worksheet[]
*/
private $_workSheetCollection = array();
/**
* Active sheet index
*
* @var int
*/
private $_activeSheetIndex = 0;
/**
* Named ranges
*
* @var PHPExcel_NamedRange[]
*/
private $_namedRanges = array();
/**
* CellXf supervisor
*
* @var PHPExcel_Style
*/
private $_cellXfSupervisor;
/**
* CellXf collection
*
* @var PHPExcel_Style[]
*/
private $_cellXfCollection = array();
/**
* CellStyleXf collection
*
* @var PHPExcel_Style[]
*/
private $_cellStyleXfCollection = array();
/**
* Create a new PHPExcel with one Worksheet
*/
public function __construct()
{
// Initialise worksheet collection and add one worksheet
$this->_workSheetCollection = array();
$this->_workSheetCollection[] = new PHPExcel_Worksheet($this);
$this->_activeSheetIndex = 0;
// Create document properties
$this->_properties = new PHPExcel_DocumentProperties();
// Create document security
$this->_security = new PHPExcel_DocumentSecurity();
// Set named ranges
$this->_namedRanges = array();
// Create the cellXf supervisor
$this->_cellXfSupervisor = new PHPExcel_Style(true);
$this->_cellXfSupervisor->bindParent($this);
// Create the default style
$this->addCellXf(new PHPExcel_Style);
$this->addCellStyleXf(new PHPExcel_Style);
}
public function disconnectWorksheets() {
foreach($this->_workSheetCollection as $k => &$worksheet) {
$worksheet->disconnectCells();
$this->_workSheetCollection[$k] = null;
}
unset($worksheet);
$this->_workSheetCollection = array();
}
/**
* Get properties
*
* @return PHPExcel_DocumentProperties
*/
public function getProperties()
{
return $this->_properties;
}
/**
* Set properties
*
* @param PHPExcel_DocumentProperties $pValue
*/
public function setProperties(PHPExcel_DocumentProperties $pValue)
{
$this->_properties = $pValue;
}
/**
* Get security
*
* @return PHPExcel_DocumentSecurity
*/
public function getSecurity()
{
return $this->_security;
}
/**
* Set security
*
* @param PHPExcel_DocumentSecurity $pValue
*/
public function setSecurity(PHPExcel_DocumentSecurity $pValue)
{
$this->_security = $pValue;
}
/**
* Get active sheet
*
* @return PHPExcel_Worksheet
*/
public function getActiveSheet()
{
return $this->_workSheetCollection[$this->_activeSheetIndex];
}
/**
* Create sheet and add it to this workbook
*
* @return PHPExcel_Worksheet
*/
public function createSheet($iSheetIndex = null)
{
$newSheet = new PHPExcel_Worksheet($this);
$this->addSheet($newSheet, $iSheetIndex);
return $newSheet;
}
/**
* Add sheet
*
* @param PHPExcel_Worksheet $pSheet
* @param int|null $iSheetIndex Index where sheet should go (0,1,..., or null for last)
* @return PHPExcel_Worksheet
* @throws Exception
*/
public function addSheet(PHPExcel_Worksheet $pSheet = null, $iSheetIndex = null)
{
if(is_null($iSheetIndex))
{
$this->_workSheetCollection[] = $pSheet;
}
else
{
// Insert the sheet at the requested index
array_splice(
$this->_workSheetCollection,
$iSheetIndex,
0,
array($pSheet)
);
// Adjust active sheet index if necessary
if ($this->_activeSheetIndex >= $iSheetIndex) {
++$this->_activeSheetIndex;
}
}
return $pSheet;
}
/**
* Remove sheet by index
*
* @param int $pIndex Active sheet index
* @throws Exception
*/
public function removeSheetByIndex($pIndex = 0)
{
if ($pIndex > count($this->_workSheetCollection) - 1) {
throw new Exception("Sheet index is out of bounds.");
} else {
array_splice($this->_workSheetCollection, $pIndex, 1);
}
}
/**
* Get sheet by index
*
* @param int $pIndex Sheet index
* @return PHPExcel_Worksheet
* @throws Exception
*/
public function getSheet($pIndex = 0)
{
if ($pIndex > count($this->_workSheetCollection) - 1) {
throw new Exception("Sheet index is out of bounds.");
} else {
return $this->_workSheetCollection[$pIndex];
}
}
/**
* Get all sheets
*
* @return PHPExcel_Worksheet[]
*/
public function getAllSheets()
{
return $this->_workSheetCollection;
}
/**
* Get sheet by name
*
* @param string $pName Sheet name
* @return PHPExcel_Worksheet
* @throws Exception
*/
public function getSheetByName($pName = '')
{
$worksheetCount = count($this->_workSheetCollection);
for ($i = 0; $i < $worksheetCount; ++$i) {
if ($this->_workSheetCollection[$i]->getTitle() == $pName) {
return $this->_workSheetCollection[$i];
}
}
return null;
}
/**
* Get index for sheet
*
* @param PHPExcel_Worksheet $pSheet
* @return Sheet index
* @throws Exception
*/
public function getIndex(PHPExcel_Worksheet $pSheet)
{
foreach ($this->_workSheetCollection as $key => $value) {
if ($value->getHashCode() == $pSheet->getHashCode()) {
return $key;
}
}
}
/**
* Set index for sheet by sheet name.
*
* @param string $sheetName Sheet name to modify index for
* @param int $newIndex New index for the sheet
* @return New sheet index
* @throws Exception
*/
public function setIndexByName($sheetName, $newIndex)
{
$oldIndex = $this->getIndex($this->getSheetByName($sheetName));
$pSheet = array_splice(
$this->_workSheetCollection,
$oldIndex,
1
);
array_splice(
$this->_workSheetCollection,
$newIndex,
0,
$pSheet
);
return $newIndex;
}
/**
* Get sheet count
*
* @return int
*/
public function getSheetCount()
{
return count($this->_workSheetCollection);
}
/**
* Get active sheet index
*
* @return int Active sheet index
*/
public function getActiveSheetIndex()
{
return $this->_activeSheetIndex;
}
/**
* Set active sheet index
*
* @param int $pIndex Active sheet index
* @throws Exception
* @return PHPExcel_Worksheet
*/
public function setActiveSheetIndex($pIndex = 0)
{
if ($pIndex > count($this->_workSheetCollection) - 1) {
throw new Exception("Active sheet index is out of bounds.");
} else {
$this->_activeSheetIndex = $pIndex;
}
return $this->getActiveSheet();
}
/**
* Set active sheet index by name
*
* @param string $pValue Sheet title
* @return PHPExcel_Worksheet
* @throws Exception
*/
public function setActiveSheetIndexByName($pValue = '')
{
if (($worksheet = $this->getSheetByName($pValue)) instanceof PHPExcel_Worksheet) {
$this->setActiveSheetIndex($worksheet->getParent()->getIndex($worksheet));
return $worksheet;
}
throw new Exception('Workbook does not contain sheet:' . $pValue);
}
/**
* Get sheet names
*
* @return string[]
*/
public function getSheetNames()
{
$returnValue = array();
$worksheetCount = $this->getSheetCount();
for ($i = 0; $i < $worksheetCount; ++$i) {
array_push($returnValue, $this->getSheet($i)->getTitle());
}
return $returnValue;
}
/**
* Add external sheet
*
* @param PHPExcel_Worksheet $pSheet External sheet to add
* @param int|null $iSheetIndex Index where sheet should go (0,1,..., or null for last)
* @throws Exception
* @return PHPExcel_Worksheet
*/
public function addExternalSheet(PHPExcel_Worksheet $pSheet, $iSheetIndex = null) {
if (!is_null($this->getSheetByName($pSheet->getTitle()))) {
throw new Exception("Workbook already contains a worksheet named '{$pSheet->getTitle()}'. Rename the external sheet first.");
}
// count how many cellXfs there are in this workbook currently, we will need this below
$countCellXfs = count($this->_cellXfCollection);
// copy all the shared cellXfs from the external workbook and append them to the current
foreach ($pSheet->getParent()->getCellXfCollection() as $cellXf) {
$this->addCellXf(clone $cellXf);
}
// move sheet to this workbook
$pSheet->rebindParent($this);
// update the cellXfs
foreach ($pSheet->getCellCollection(false) as $cellID) {
$cell = $pSheet->getCell($cellID);
$cell->setXfIndex( $cell->getXfIndex() + $countCellXfs );
}
return $this->addSheet($pSheet, $iSheetIndex);
}
/**
* Get named ranges
*
* @return PHPExcel_NamedRange[]
*/
public function getNamedRanges() {
return $this->_namedRanges;
}
/**
* Add named range
*
* @param PHPExcel_NamedRange $namedRange
* @return PHPExcel
*/
public function addNamedRange(PHPExcel_NamedRange $namedRange) {
if ($namedRange->getScope() == null) {
// global scope
$this->_namedRanges[$namedRange->getName()] = $namedRange;
} else {
// local scope
$this->_namedRanges[$namedRange->getScope()->getTitle().'!'.$namedRange->getName()] = $namedRange;
}
return true;
}
/**
* Get named range
*
* @param string $namedRange
* @param PHPExcel_Worksheet|null $pSheet Scope. Use null for global scope
* @return PHPExcel_NamedRange|null
*/
public function getNamedRange($namedRange, PHPExcel_Worksheet $pSheet = null) {
$returnValue = null;
if ($namedRange != '' && !is_null($namedRange)) {
// first look for global defined name
if (isset($this->_namedRanges[$namedRange])) {
$returnValue = $this->_namedRanges[$namedRange];
}
// then look for local defined name (has priority over global defined name if both names exist)
if (!is_null($pSheet) && isset($this->_namedRanges[$pSheet->getTitle() . '!' . $namedRange])) {
$returnValue = $this->_namedRanges[$pSheet->getTitle() . '!' . $namedRange];
}
}
return $returnValue;
}
/**
* Remove named range
*
* @param string $namedRange
* @param PHPExcel_Worksheet|null $pSheet. Scope. Use null for global scope.
* @return PHPExcel
*/
public function removeNamedRange($namedRange, PHPExcel_Worksheet $pSheet = null) {
if (is_null($pSheet)) {
if (isset($this->_namedRanges[$namedRange])) {
unset($this->_namedRanges[$namedRange]);
}
} else {
if (isset($this->_namedRanges[$pSheet->getTitle() . '!' . $namedRange])) {
unset($this->_namedRanges[$pSheet->getTitle() . '!' . $namedRange]);
}
}
return $this;
}
/**
* Get worksheet iterator
*
* @return PHPExcel_WorksheetIterator
*/
public function getWorksheetIterator() {
return new PHPExcel_WorksheetIterator($this);
}
/**
* Copy workbook (!= clone!)
*
* @return PHPExcel
*/
public function copy() {
$copied = clone $this;
$worksheetCount = count($this->_workSheetCollection);
for ($i = 0; $i < $worksheetCount; ++$i) {
$this->_workSheetCollection[$i] = $this->_workSheetCollection[$i]->copy();
$this->_workSheetCollection[$i]->rebindParent($this);
}
return $copied;
}
/**
* Implement PHP __clone to create a deep clone, not just a shallow copy.
*/
public function __clone() {
foreach($this as $key => $val) {
if (is_object($val) || (is_array($val))) {
$this->{$key} = unserialize(serialize($val));
}
}
}
/**
* Get the workbook collection of cellXfs
*
* @return PHPExcel_Style[]
*/
public function getCellXfCollection()
{
return $this->_cellXfCollection;
}
/**
* Get cellXf by index
*
* @param int $index
* @return PHPExcel_Style
*/
public function getCellXfByIndex($pIndex = 0)
{
return $this->_cellXfCollection[$pIndex];
}
/**
* Get cellXf by hash code
*
* @param string $pValue
* @return PHPExcel_Style|false
*/
public function getCellXfByHashCode($pValue = '')
{
foreach ($this->_cellXfCollection as $cellXf) {
if ($cellXf->getHashCode() == $pValue) {
return $cellXf;
}
}
return false;
}
/**
* Get default style
*
* @return PHPExcel_Style
* @throws Exception
*/
public function getDefaultStyle()
{
if (isset($this->_cellXfCollection[0])) {
return $this->_cellXfCollection[0];
}
throw new Exception('No default style found for this workbook');
}
/**
* Add a cellXf to the workbook
*
* @param PHPExcel_Style
*/
public function addCellXf(PHPExcel_Style $style)
{
$this->_cellXfCollection[] = $style;
$style->setIndex(count($this->_cellXfCollection) - 1);
}
/**
* Remove cellXf by index. It is ensured that all cells get their xf index updated.
*
* @param int $pIndex Index to cellXf
* @throws Exception
*/
public function removeCellXfByIndex($pIndex = 0)
{
if ($pIndex > count($this->_cellXfCollection) - 1) {
throw new Exception("CellXf index is out of bounds.");
} else {
// first remove the cellXf
array_splice($this->_cellXfCollection, $pIndex, 1);
// then update cellXf indexes for cells
foreach ($this->_workSheetCollection as $worksheet) {
foreach ($worksheet->getCellCollection(false) as $cellID) {
$cell = $worksheet->getCell($cellID);
$xfIndex = $cell->getXfIndex();
if ($xfIndex > $pIndex ) {
// decrease xf index by 1
$cell->setXfIndex($xfIndex - 1);
} else if ($xfIndex == $pIndex) {
// set to default xf index 0
$cell->setXfIndex(0);
}
}
}
}
}
/**
* Get the cellXf supervisor
*
* @return PHPExcel_Style
*/
public function getCellXfSupervisor()
{
return $this->_cellXfSupervisor;
}
/**
* Get the workbook collection of cellStyleXfs
*
* @return PHPExcel_Style[]
*/
public function getCellStyleXfCollection()
{
return $this->_cellStyleXfCollection;
}
/**
* Get cellStyleXf by index
*
* @param int $pIndex
* @return PHPExcel_Style
*/
public function getCellStyleXfByIndex($pIndex = 0)
{
return $this->_cellStyleXfCollection[$pIndex];
}
/**
* Get cellStyleXf by hash code
*
* @param string $pValue
* @return PHPExcel_Style|false
*/
public function getCellStyleXfByHashCode($pValue = '')
{
foreach ($this->_cellXfStyleCollection as $cellStyleXf) {
if ($cellStyleXf->getHashCode() == $pValue) {
return $cellStyleXf;
}
}
return false;
}
/**
* Add a cellStyleXf to the workbook
*
* @param PHPExcel_Style $pStyle
*/
public function addCellStyleXf(PHPExcel_Style $pStyle)
{
$this->_cellStyleXfCollection[] = $pStyle;
$pStyle->setIndex(count($this->_cellStyleXfCollection) - 1);
}
/**
* Remove cellStyleXf by index
*
* @param int $pIndex
* @throws Exception
*/
public function removeCellStyleXfByIndex($pIndex = 0)
{
if ($pIndex > count($this->_cellStyleXfCollection) - 1) {
throw new Exception("CellStyleXf index is out of bounds.");
} else {
array_splice($this->_cellStyleXfCollection, $pIndex, 1);
}
}
/**
* Eliminate all unneeded cellXf and afterwards update the xfIndex for all cells
* and columns in the workbook
*/
public function garbageCollect()
{
// how many references are there to each cellXf ?
$countReferencesCellXf = array();
foreach ($this->_cellXfCollection as $index => $cellXf) {
$countReferencesCellXf[$index] = 0;
}
foreach ($this->getWorksheetIterator() as $sheet) {
// from cells
foreach ($sheet->getCellCollection(false) as $cellID) {
$cell = $sheet->getCell($cellID);
++$countReferencesCellXf[$cell->getXfIndex()];
}
// from row dimensions
foreach ($sheet->getRowDimensions() as $rowDimension) {
if ($rowDimension->getXfIndex() !== null) {
++$countReferencesCellXf[$rowDimension->getXfIndex()];
}
}
// from column dimensions
foreach ($sheet->getColumnDimensions() as $columnDimension) {
++$countReferencesCellXf[$columnDimension->getXfIndex()];
}
}
// remove cellXfs without references and create mapping so we can update xfIndex
// for all cells and columns
$countNeededCellXfs = 0;
foreach ($this->_cellXfCollection as $index => $cellXf) {
if ($countReferencesCellXf[$index] > 0 || $index == 0) { // we must never remove the first cellXf
++$countNeededCellXfs;
} else {
unset($this->_cellXfCollection[$index]);
}
$map[$index] = $countNeededCellXfs - 1;
}
$this->_cellXfCollection = array_values($this->_cellXfCollection);
// update the index for all cellXfs
foreach ($this->_cellXfCollection as $i => $cellXf) {
$cellXf->setIndex($i);
}
// make sure there is always at least one cellXf (there should be)
if (count($this->_cellXfCollection) == 0) {
$this->_cellXfCollection[] = new PHPExcel_Style();
}
// update the xfIndex for all cells, row dimensions, column dimensions
foreach ($this->getWorksheetIterator() as $sheet) {
// for all cells
foreach ($sheet->getCellCollection(false) as $cellID) {
$cell = $sheet->getCell($cellID);
$cell->setXfIndex( $map[$cell->getXfIndex()] );
}
// for all row dimensions
foreach ($sheet->getRowDimensions() as $rowDimension) {
if ($rowDimension->getXfIndex() !== null) {
$rowDimension->setXfIndex( $map[$rowDimension->getXfIndex()] );
}
}
// for all column dimensions
foreach ($sheet->getColumnDimensions() as $columnDimension) {
$columnDimension->setXfIndex( $map[$columnDimension->getXfIndex()] );
}
}
// also do garbage collection for all the sheets
foreach ($this->getWorksheetIterator() as $sheet) {
$sheet->garbageCollect();
}
}
}
然后在我的控制器中；
$this->load->library('PHPExcel');
// Create new PHPExcel object
$excel_obj = new PHPExcel();
// Set properties
$excel_obj->getProperties()->setCreator($params['author'])
->setLastModifiedBy($params['author'])
->setTitle($params['title'])
->setSubject($params['subject'])
->setDescription($params['description']);
【讨论】：