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@ -610,499 +610,6 @@ Xlsx | NO | Xls | NO | Xml | NO
Ods | NO | SYLK | NO | Gnumeric | NO Ods | NO | SYLK | NO | Gnumeric | NO
CSV | YES | HTML | YES CSV | YES | HTML | YES
## Spreadsheet Reader Options
Once you have created a reader object for the workbook that you want to
load, you have the opportunity to set additional options before
executing the load() method.
### Reading Only Data from a Spreadsheet File
If you're only interested in the cell values in a workbook, but don't
need any of the cell formatting information, then you can set the reader
to read only the data values and any formulae from each cell using the
setReadDataOnly() method.
``` php
$inputFileType = 'Xls';
$inputFileName = './sampleData/example1.xls';
/** Create a new Reader of the type defined in $inputFileType **/
$reader = \PhpOffice\PhpSpreadsheet\IOFactory::createReader($inputFileType);
/** Advise the Reader that we only want to load cell data **/
$reader->setReadDataOnly(true);
/** Load $inputFileName to a Spreadsheet Object **/
$spreadsheet = $reader->load($inputFileName);
```
> See Examples/Reader/exampleReader05.php for a working example of this
> code.
It is important to note that Workbooks (and PhpSpreadsheet) store dates
and times as simple numeric values: they can only be distinguished from
other numeric values by the format mask that is applied to that cell.
When setting read data only to true, PhpSpreadsheet doesn't read the
cell format masks, so it is not possible to differentiate between
dates/times and numbers.
The Gnumeric loader has been written to read the format masks for date
values even when read data only has been set to true, so it can
differentiate between dates/times and numbers; but this change hasn't
yet been implemented for the other readers.
Reading Only Data from a Spreadsheet File applies to Readers:
Reader | Y/N |Reader | Y/N |Reader | Y/N |
----------|:---:|--------|:---:|--------------|:---:|
Xlsx | YES | Xls | YES | Xml | YES |
Ods | YES | SYLK | NO | Gnumeric | YES |
CSV | NO | HTML | NO
### Reading Only Named WorkSheets from a File
If your workbook contains a number of worksheets, but you are only
interested in reading some of those, then you can use the
setLoadSheetsOnly() method to identify those sheets you are interested
in reading.
To read a single sheet, you can pass that sheet name as a parameter to
the setLoadSheetsOnly() method.
``` php
$inputFileType = 'Xls';
$inputFileName = './sampleData/example1.xls';
$sheetname = 'Data Sheet #2';
/** Create a new Reader of the type defined in $inputFileType **/
$reader = \PhpOffice\PhpSpreadsheet\IOFactory::createReader($inputFileType);
/** Advise the Reader of which WorkSheets we want to load **/
$reader->setLoadSheetsOnly($sheetname);
/** Load $inputFileName to a Spreadsheet Object **/
$spreadsheet = $reader->load($inputFileName);
```
> See Examples/Reader/exampleReader07.php for a working example of this
> code.
If you want to read more than just a single sheet, you can pass a list
of sheet names as an array parameter to the setLoadSheetsOnly() method.
``` php
$inputFileType = 'Xls';
$inputFileName = './sampleData/example1.xls';
$sheetnames = array('Data Sheet #1','Data Sheet #3');
/** Create a new Reader of the type defined in $inputFileType **/
$reader = \PhpOffice\PhpSpreadsheet\IOFactory::createReader($inputFileType);
/** Advise the Reader of which WorkSheets we want to load **/
$reader->setLoadSheetsOnly($sheetnames);
/** Load $inputFileName to a Spreadsheet Object **/
$spreadsheet = $reader->load($inputFileName);
```
> See Examples/Reader/exampleReader08.php for a working example of this
> code.
To reset this option to the default, you can call the setLoadAllSheets()
method.
``` php
$inputFileType = 'Xls';
$inputFileName = './sampleData/example1.xls';
/** Create a new Reader of the type defined in $inputFileType **/
$reader = \PhpOffice\PhpSpreadsheet\IOFactory::createReader($inputFileType);
/** Advise the Reader to load all Worksheets **/
$reader->setLoadAllSheets();
/** Load $inputFileName to a Spreadsheet Object **/
$spreadsheet = $reader->load($inputFileName);
```
> See Examples/Reader/exampleReader06.php for a working example of this
> code.
Reading Only Named WorkSheets from a File applies to Readers:
Reader | Y/N |Reader | Y/N |Reader | Y/N |
----------|:---:|--------|:---:|--------------|:---:|
Xlsx | YES | Xls | YES | Xml | YES |
Ods | YES | SYLK | NO | Gnumeric | YES |
CSV | NO | HTML | NO
### Reading Only Specific Columns and Rows from a File (Read Filters)
If you are only interested in reading part of a worksheet, then you can
write a filter class that identifies whether or not individual cells
should be read by the loader. A read filter must implement the
\PhpOffice\PhpSpreadsheet\Reader\IReadFilter interface, and contain a
readCell() method that accepts arguments of \$column, \$row and
\$worksheetName, and return a boolean true or false that indicates
whether a workbook cell identified by those arguments should be read or
not.
``` php
$inputFileType = 'Xls';
$inputFileName = './sampleData/example1.xls';
$sheetname = 'Data Sheet #3';
/** Define a Read Filter class implementing \PhpOffice\PhpSpreadsheet\Reader\IReadFilter */
class MyReadFilter implements \PhpOffice\PhpSpreadsheet\Reader\IReadFilter
{
public function readCell($column, $row, $worksheetName = '') {
// Read rows 1 to 7 and columns A to E only
if ($row >= 1 && $row <= 7) {
if (in_array($column,range('A','E'))) {
return true;
}
}
return false;
}
}
/** Create an Instance of our Read Filter **/
$filterSubset = new MyReadFilter();
/** Create a new Reader of the type defined in $inputFileType **/
$reader = \PhpOffice\PhpSpreadsheet\IOFactory::createReader($inputFileType);
/** Tell the Reader that we want to use the Read Filter **/
$reader->setReadFilter($filterSubset);
/** Load only the rows and columns that match our filter to Spreadsheet **/
$spreadsheet = $reader->load($inputFileName);
```
> See Examples/Reader/exampleReader09.php for a working example of this
> code.
This example is not particularly useful, because it can only be used in
a very specific circumstance (when you only want cells in the range
A1:E7 from your worksheet. A generic Read Filter would probably be more
useful:
``` php
/** Define a Read Filter class implementing \PhpOffice\PhpSpreadsheet\Reader\IReadFilter */
class MyReadFilter implements \PhpOffice\PhpSpreadsheet\Reader\IReadFilter
{
private $_startRow = 0;
private $_endRow = 0;
private $_columns = array();
/** Get the list of rows and columns to read */
public function __construct($startRow, $endRow, $columns) {
$this->_startRow = $startRow;
$this->_endRow = $endRow;
$this->_columns = $columns;
}
public function readCell($column, $row, $worksheetName = '') {
// Only read the rows and columns that were configured
if ($row >= $this->_startRow && $row <= $this->_endRow) {
if (in_array($column,$this->_columns)) {
return true;
}
}
return false;
}
}
/** Create an Instance of our Read Filter, passing in the cell range **/
$filterSubset = new MyReadFilter(9,15,range('G','K'));
```
> See Examples/Reader/exampleReader10.php for a working example of this
> code.
This can be particularly useful for conserving memory, by allowing you
to read and process a large workbook in “chunks”: an example of this
usage might be when transferring data from an Excel worksheet to a
database.
``` php
$inputFileType = 'Xls';
$inputFileName = './sampleData/example2.xls';
/** Define a Read Filter class implementing \PhpOffice\PhpSpreadsheet\Reader\IReadFilter */
class chunkReadFilter implements \PhpOffice\PhpSpreadsheet\Reader\IReadFilter
{
private $_startRow = 0;
private $_endRow = 0;
/** Set the list of rows that we want to read */
public function setRows($startRow, $chunkSize) {
$this->_startRow = $startRow;
$this->_endRow = $startRow + $chunkSize;
}
public function readCell($column, $row, $worksheetName = '') {
// Only read the heading row, and the configured rows
if (($row == 1) || ($row >= $this->_startRow && $row < $this->_endRow)) {
return true;
}
return false;
}
}
/** Create a new Reader of the type defined in $inputFileType **/
$reader = \PhpOffice\PhpSpreadsheet\IOFactory::createReader($inputFileType);
/** Define how many rows we want to read for each "chunk" **/
$chunkSize = 2048;
/** Create a new Instance of our Read Filter **/
$chunkFilter = new chunkReadFilter();
/** Tell the Reader that we want to use the Read Filter **/
$reader->setReadFilter($chunkFilter);
/** Loop to read our worksheet in "chunk size" blocks **/
for ($startRow = 2; $startRow <= 65536; $startRow += $chunkSize) {
/** Tell the Read Filter which rows we want this iteration **/
$chunkFilter->setRows($startRow,$chunkSize);
/** Load only the rows that match our filter **/
$spreadsheet = $reader->load($inputFileName);
// Do some processing here
}
```
> See Examples/Reader/exampleReader12.php for a working example of this
> code.
Using Read Filters applies to:
Reader | Y/N |Reader | Y/N |Reader | Y/N |
----------|:---:|--------|:---:|--------------|:---:|
Xlsx | YES | Xls | YES | Xml | YES |
Ods | YES | SYLK | NO | Gnumeric | YES |
CSV | YES | HTML | NO
### Combining Multiple Files into a Single Spreadsheet Object
While you can limit the number of worksheets that are read from a
workbook file using the setLoadSheetsOnly() method, certain readers also
allow you to combine several individual "sheets" from different files
into a single `Spreadsheet` object, where each individual file is a
single worksheet within that workbook. For each file that you read, you
need to indicate which worksheet index it should be loaded into using
the setSheetIndex() method of the \$reader, then use the
loadIntoExisting() method rather than the load() method to actually read
the file into that worksheet.
``` php
$inputFileType = 'Csv';
$inputFileNames = array('./sampleData/example1.csv',
'./sampleData/example2.csv'
'./sampleData/example3.csv'
);
/** Create a new Reader of the type defined in $inputFileType **/
$reader = \PhpOffice\PhpSpreadsheet\IOFactory::createReader($inputFileType);
/** Extract the first named file from the array list **/
$inputFileName = array_shift($inputFileNames);
/** Load the initial file to the first worksheet in a `Spreadsheet` Object **/
$spreadsheet = $reader->load($inputFileName);
/** Set the worksheet title (to the filename that we've loaded) **/
$spreadsheet->getActiveSheet()
->setTitle(pathinfo($inputFileName,PATHINFO_BASENAME));
/** Loop through all the remaining files in the list **/
foreach($inputFileNames as $sheet => $inputFileName) {
/** Increment the worksheet index pointer for the Reader **/
$reader->setSheetIndex($sheet+1);
/** Load the current file into a new worksheet in Spreadsheet **/
$reader->loadIntoExisting($inputFileName,$spreadsheet);
/** Set the worksheet title (to the filename that we've loaded) **/
$spreadsheet->getActiveSheet()
->setTitle(pathinfo($inputFileName,PATHINFO_BASENAME));
}
```
> See Examples/Reader/exampleReader13.php for a working example of this
> code.
Note that using the same sheet index for multiple sheets won't append
files into the same sheet, but overwrite the results of the previous
load. You cannot load multiple CSV files into the same worksheet.
Combining Multiple Files into a Single Spreadsheet Object applies to:
Reader | Y/N |Reader | Y/N |Reader | Y/N |
----------|:---:|--------|:---:|--------------|:---:|
Xlsx | NO | Xls | NO | Xml | NO |
Ods | NO | SYLK | YES | Gnumeric | NO |
CSV | YES | HTML | NO
### Combining Read Filters with the setSheetIndex() method to split a large CSV file across multiple Worksheets
An Xls BIFF .xls file is limited to 65536 rows in a worksheet, while the
Xlsx Microsoft Office Open XML SpreadsheetML .xlsx file is limited to
1,048,576 rows in a worksheet; but a CSV file is not limited other than
by available disk space. This means that we wouldn’t ordinarily be able
to read all the rows from a very large CSV file that exceeded those
limits, and save it as an Xls or Xlsx file. However, by using Read
Filters to read the CSV file in “chunks” (using the chunkReadFilter
Class that we defined in section REF \_Ref275604563 \r \p 5.3 above),
and the setSheetIndex() method of the \$reader, we can split the CSV
file across several individual worksheets.
``` php
$inputFileType = 'Csv';
$inputFileName = './sampleData/example2.csv';
echo 'Loading file ',pathinfo($inputFileName,PATHINFO_BASENAME),' using IOFactory with a defined reader type of ',$inputFileType,'<br />';
/** Create a new Reader of the type defined in $inputFileType **/
$reader = \PhpOffice\PhpSpreadsheet\IOFactory::createReader($inputFileType);
/** Define how many rows we want to read for each "chunk" **/
$chunkSize = 65530;
/** Create a new Instance of our Read Filter **/
$chunkFilter = new chunkReadFilter();
/** Tell the Reader that we want to use the Read Filter **/
/** and that we want to store it in contiguous rows/columns **/
$reader->setReadFilter($chunkFilter)
->setContiguous(true);
/** Instantiate a new Spreadsheet object manually **/
$spreadsheet = new \PhpOffice\PhpSpreadsheet\Spreadsheet();
/** Set a sheet index **/
$sheet = 0;
/** Loop to read our worksheet in "chunk size" blocks **/
/** $startRow is set to 2 initially because we always read the headings in row #1 **/
for ($startRow = 2; $startRow <= 1000000; $startRow += $chunkSize) {
/** Tell the Read Filter which rows we want to read this loop **/
$chunkFilter->setRows($startRow,$chunkSize);
/** Increment the worksheet index pointer for the Reader **/
$reader->setSheetIndex($sheet);
/** Load only the rows that match our filter into a new worksheet **/
$reader->loadIntoExisting($inputFileName,$spreadsheet);
/** Set the worksheet title for the sheet that we've justloaded) **/
/** and increment the sheet index as well **/
$spreadsheet->getActiveSheet()->setTitle('Country Data #'.(++$sheet));
}
```
> See Examples/Reader/exampleReader14.php for a working example of this
> code.
This code will read 65,530 rows at a time from the CSV file that we’re
loading, and store each "chunk" in a new worksheet.
The setContiguous() method for the Reader is important here. It is
applicable only when working with a Read Filter, and identifies whether
or not the cells should be stored by their position within the CSV file,
or their position relative to the filter.
For example, if the filter returned true for cells in the range B2:C3,
then with setContiguous set to false (the default) these would be loaded
as B2:C3 in the `Spreadsheet` object; but with setContiguous set to
true, they would be loaded as A1:B2.
Splitting a single loaded file across multiple worksheets applies to:
Reader | Y/N |Reader | Y/N |Reader | Y/N |
----------|:---:|--------|:---:|--------------|:---:|
Xlsx | NO | Xls | NO | Xml | NO |
Ods | NO | SYLK | NO | Gnumeric | NO |
CSV | YES | HTML | NO
### Pipe or Tab Separated Value Files
The CSV loader defaults to loading a file where comma is used as the
separator, but you can modify this to load tab- or pipe-separated value
files using the setDelimiter() method.
``` php
$inputFileType = 'Csv';
$inputFileName = './sampleData/example1.tsv';
/** Create a new Reader of the type defined in $inputFileType **/ $reader = \PhpOffice\PhpSpreadsheet\IOFactory::createReader($inputFileType);
/** Set the delimiter to a TAB character **/
$reader->setDelimiter("\t");
// $reader->setDelimiter('|');
/** Load the file to a Spreadsheet Object **/
$spreadsheet = $reader->load($inputFileName);
```
> See Examples/Reader/exampleReader15.php for a working example of this
> code.
In addition to the delimiter, you can also use the following methods to
set other attributes for the data load:
setEnclosure() | default is " setLineEnding() | default is PHP\_EOL
setInputEncoding() | default is UTF-8
Setting CSV delimiter applies to:
Reader | Y/N |Reader | Y/N |Reader | Y/N |
----------|:---:|--------|:---:|--------------|:---:|
Xlsx | NO | Xls | NO | Xml | NO |
Ods | NO | SYLK | NO | Gnumeric | NO |
CSV | YES | HTML | NO
### A Brief Word about the Advanced Value Binder
When loading data from a file that contains no formatting information,
such as a CSV file, then data is read either as strings or numbers
(float or integer). This means that PhpSpreadsheet does not
automatically recognise dates/times (such as "16-Apr-2009" or "13:30"),
booleans ("TRUE" or "FALSE"), percentages ("75%"), hyperlinks
("http://www.phpexcel.net"), etc as anything other than simple strings.
However, you can apply additional processing that is executed against
these values during the load process within a Value Binder.
A Value Binder is a class that implement the
\PhpOffice\PhpSpreadsheet\Cell\IValueBinder interface. It must contain a
bindValue() method that accepts a \PhpOffice\PhpSpreadsheet\Cell and a
value as arguments, and return a boolean true or false that indicates
whether the workbook cell has been populated with the value or not. The
Advanced Value Binder implements such a class: amongst other tests, it
identifies a string comprising "TRUE" or "FALSE" (based on locale
settings) and sets it to a boolean; or a number in scientific format
(e.g. "1.234e-5") and converts it to a float; or dates and times,
converting them to their Excel timestamp value – before storing the
value in the cell object. It also sets formatting for strings that are
identified as dates, times or percentages. It could easily be extended
to provide additional handling (including text or cell formatting) when
it encountered a hyperlink, or HTML markup within a CSV file.
So using a Value Binder allows a great deal more flexibility in the
loader logic when reading unformatted text files.
``` php
/** Tell PhpSpreadsheet that we want to use the Advanced Value Binder **/
\PhpOffice\PhpSpreadsheet\Cell::setValueBinder( new \PhpOffice\PhpSpreadsheet\Cell\AdvancedValueBinder() );
$inputFileType = 'Csv';
$inputFileName = './sampleData/example1.tsv';
$reader = \PhpOffice\PhpSpreadsheet\IOFactory::createReader($inputFileType);
$reader->setDelimiter("\t");
$spreadsheet = $reader->load($inputFileName);
```
> See Examples/Reader/exampleReader15.php for a working example of this
> code.
Loading using a Value Binder applies to:
Reader | Y/N |Reader | Y/N |Reader | Y/N
----------|:---:|--------|:---:|--------------|:---:
Xlsx | NO | Xls | NO | Xml | NO
Ods | NO | SYLK | NO | Gnumeric | NO
CSV | YES | HTML | YES
## Error Handling ## Error Handling
Of course, you should always apply some error handling to your scripts Of course, you should always apply some error handling to your scripts