Class Trees Index phpDocumentor Project Page

Element Index, Package Spreadsheet_WriteExcel

Indexes by package:
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Index of all elements
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$_biffsizein file OLEwriter.php, variable OLEwriter::$_biffsize
    Size of the data to be written to the OLE stream
$_BIFF_versionin file BIFFwriter.php, variable BIFFWriter::$_BIFF_version
$_big_blocksin file OLEwriter.php, variable OLEwriter::$_big_blocks
    Number of big blocks in the OLE stream
$_booksizein file OLEwriter.php, variable OLEwriter::$_booksize
    Real data size to be written to the OLE stream
$_fileclosedin file OLEwriter.php, variable OLEwriter::$_fileclosed
    Variable for preventing closing two times
$_filehandlein file OLEwriter.php, variable OLEwriter::$_filehandle
    Filehandle for the OLE stream
$_list_blocksin file OLEwriter.php, variable OLEwriter::$_list_blocks
    Number of list blocks in the OLE stream
$_OLEfilenamein file OLEwriter.php, variable OLEwriter::$_OLEfilename
    Filename for the OLE stream
$_root_startin file OLEwriter.php, variable OLEwriter::$_root_start
    Number of big blocks in the OLE stream
$_tmp_filenamein file OLEwriter.php, variable OLEwriter::$_tmp_filename
    Name of the temporal file in case OLE stream goes to stdout
_advancein file Parser.php, method Parser::_advance()
    Advance to the next valid token.
_appendin file Worksheet.php, method Worksheet::_append()
    Store Worksheet data in memory using the parent's class append() or to a temporary file, the default.
_calculate_sizesin file OLEwriter.php, method OLEwriter::_calculate_sizes()
    Calculate various sizes needed for the OLE stream
_calc_sheet_offsetsin file Workbook.php, method Workbook::_calc_sheet_offsets()
    Calculate offsets for Worksheet BOF records.
_cell_to_packed_rowcolin file Parser.php, method Parser::_cell_to_packed_rowcol()
    pack() row and column into the required 3 byte format.
_cell_to_rowcolin file Parser.php, method Parser::_cell_to_rowcol()
    Convert an Excel cell reference such as A1 or $B2 or C$3 or $D$4 to a zero indexed row and column number. Also returns two boolean values to indicate whether the row or column are relative references.
_cell_to_rowcolin file Worksheet.php, method Worksheet::_cell_to_rowcol()
    Convert an Excel cell reference in A1 notation to a zero based row and column reference; converts C1 to (0, 2).
_convertin file Parser.php, method Parser::_convert()
    Convert a token to the proper ptg value.
_convert_functionin file Parser.php, method Parser::_convert_function()
    Convert a function to a ptgFunc or ptgFuncVarV depending on the number of args that it takes.
_convert_numberin file Parser.php, method Parser::_convert_number()
    Convert a number token to ptgInt or ptgNum
_convert_range2din file Parser.php, method Parser::_convert_range2d()
    Convert an Excel range such as A1:D4 to a ptgRefV.
_convert_ref2din file Parser.php, method Parser::_convert_ref2d()
    Convert an Excel reference such as A1, $B2, C$3 or $D$4 to a ptgRefV.
_create_treein file Parser.php, method Parser::_create_tree()
    Creates a tree. In fact an array which may have one or two arrays (sub-trees) as elements.
_encode_passwordin file Worksheet.php, method Worksheet::_encode_password()
    Based on the algorithm provided by Daniel Rentz of OpenOffice.
_expressionin file Parser.php, method Parser::_expression()
    It parses a expression. It assumes the following rule: Expr -> Term [("+" | "-") Term]
_factin file Parser.php, method Parser::_fact()
    It parses a factor. It assumes the following rule:
_funcin file Parser.php, method Parser::_func()
    It parses a function call. It assumes the following rule:
_get_colorin file Format.php, method Format::_get_color()
    Used in conjunction with the set_xxx_color methods to convert a color string into a number. Color range is 0..63 but we will restrict it to 8..63 to comply with Gnumeric. Colors 0..7 are repeated in 8..15.
_initializein file Worksheet.php, method Worksheet::_initialize()
    Open a tmp file to store the majority of the Worksheet data. If this fails, for example due to write permissions, store the data in memory. This can be slow for large files.
_initializein file OLEwriter.php, method OLEwriter::_initialize()
    Check for a valid filename and store the filehandle.
_initialize_hashesin file Parser.php, method Parser::_initialize_hashes()
    Initialize the ptg and function hashes.
_matchin file Parser.php, method Parser::_match()
    Checks if it's a valid token.
_parenthesized_expressionin file Parser.php, method Parser::_parenthesized_expression()
    This function just introduces a ptgParen element in the tree, so that Excel doesn't get confused when working with a parenthesized formula afterwards.
_position_imagein file Worksheet.php, method Worksheet::_position_image()
    Calculate the vertices that define the position of the image as required by the OBJ record.
_process_bitmapin file Worksheet.php, method Worksheet::_process_bitmap()
    Convert a 24 bit bitmap into the modified internal format used by Windows.
_set_palette_xl97in file Workbook.php, method Workbook::_set_palette_xl97()
    Sets the colour palette to the Excel 97+ default.
_store_1904in file Workbook.php, method Workbook::_store_1904()
    Write Excel 1904 record to indicate the date system in use.
_store_all_fontsin file Workbook.php, method Workbook::_store_all_fonts()
    Store the Excel FONT records.
_store_all_num_formatsin file Workbook.php, method Workbook::_store_all_num_formats()
    Store user defined numerical formats i.e. FORMAT records
_store_all_stylesin file Workbook.php, method Workbook::_store_all_styles()
    Write all STYLE records.
_store_all_xfsin file Workbook.php, method Workbook::_store_all_xfs()
    Write all XF records.
_store_boundsheetin file Workbook.php, method Workbook::_store_boundsheet()
    Writes Excel BIFF BOUNDSHEET record.
_store_colinfoin file Worksheet.php, method Worksheet::_store_colinfo()
    Write BIFF record COLINFO to define column widths
_store_defcolin file Worksheet.php, method Worksheet::_store_defcol()
    Write BIFF record DEFCOLWIDTH if COLINFO records are in use.
_store_dimensionsin file Worksheet.php, method Worksheet::_store_dimensions()
    Writes Excel DIMENSIONS to define the area in which there is data.
_store_externcountin file Workbook.php, method Workbook::_store_externcount()
    Write BIFF record EXTERNCOUNT to indicate the number of external sheet references in the workbook.
_store_externcountin file Worksheet.php, method Worksheet::_store_externcount()
    Write BIFF record EXTERNCOUNT to indicate the number of external sheet references in a worksheet.
_store_externsin file Workbook.php, method Workbook::_store_externs()
    Write the EXTERNCOUNT and EXTERNSHEET records. These are used as indexes for the NAME records.
_store_externsheetin file Worksheet.php, method Worksheet::_store_externsheet()
    Writes the Excel BIFF EXTERNSHEET record. These references are used by formulas. A formula references a sheet name via an index. Since we store a reference to all of the external worksheets the EXTERNSHEET index is the same as the worksheet index.
_store_externsheetin file Workbook.php, method Workbook::_store_externsheet()
    Writes the Excel BIFF EXTERNSHEET record. These references are used by formulas. NAME record is required to define the print area and the repeat rows and columns.
_store_gridsetin file Worksheet.php, method Worksheet::_store_gridset()
    Write the GRIDSET BIFF record. Must be used in conjunction with the PRINTGRIDLINES record.
_store_hbreakin file Worksheet.php, method Worksheet::_store_hbreak()
    Write the HORIZONTALPAGEBREAKS BIFF record.
_store_margin_bottomin file Worksheet.php, method Worksheet::_store_margin_bottom()
    Store the BOTTOMMARGIN BIFF record.
_store_margin_leftin file Worksheet.php, method Worksheet::_store_margin_left()
    Store the LEFTMARGIN BIFF record.
_store_margin_rightin file Worksheet.php, method Worksheet::_store_margin_right()
    Store the RIGHTMARGIN BIFF record.
_store_margin_topin file Worksheet.php, method Worksheet::_store_margin_top()
    Store the TOPMARGIN BIFF record.
_store_namesin file Workbook.php, method Workbook::_store_names()
    Write the NAME record to define the print area and the repeat rows and cols.
_store_num_formatin file Workbook.php, method Workbook::_store_num_format()
    Writes Excel FORMAT record for non "built-in" numerical formats.
_store_obj_picturein file Worksheet.php, method Worksheet::_store_obj_picture()
    Store the OBJ record that precedes an IMDATA record. This could be generalise to support other Excel objects.
_store_OLE_filein file Workbook.php, method Workbook::_store_OLE_file()
    Store the workbook in an OLE container if the total size of the workbook data is less than ~ 7MB.
_store_palettein file Workbook.php, method Workbook::_store_palette()
    Stores the PALETTE biff record.
_store_panesin file Worksheet.php, method Worksheet::_store_panes()
    Writes the Excel BIFF PANE record.
_store_passwordin file Worksheet.php, method Worksheet::_store_password()
    Write the worksheet PASSWORD record.
_store_print_gridlinesin file Worksheet.php, method Worksheet::_store_print_gridlines()
    Write the PRINTGRIDLINES BIFF record. Must be used in conjunction with the GRIDSET record.
_store_print_headersin file Worksheet.php, method Worksheet::_store_print_headers()
    Write the PRINTHEADERS BIFF record.
_store_protectin file Worksheet.php, method Worksheet::_store_protect()
    Set the Biff PROTECT record to indicate that the worksheet is protected.
_store_selectionin file Worksheet.php, method Worksheet::_store_selection()
    Write BIFF record SELECTION.
_store_setupin file Worksheet.php, method Worksheet::_store_setup()
    Store the page setup SETUP BIFF record.
_store_stylein file Workbook.php, method Workbook::_store_style()
    Write Excel BIFF STYLE records.
_store_vbreakin file Worksheet.php, method Worksheet::_store_vbreak()
    Write the VERTICALPAGEBREAKS BIFF record.
_store_window1in file Workbook.php, method Workbook::_store_window1()
    Write Excel BIFF WINDOW1 record.
_store_window2in file Worksheet.php, method Worksheet::_store_window2()
    Write BIFF record Window2.
_store_wsboolin file Worksheet.php, method Worksheet::_store_wsbool()
    Write the WSBOOL BIFF record, mainly for fit-to-page. Used in conjunction with the SETUP record.
_store_zoomin file Worksheet.php, method Worksheet::_store_zoom()
    Store the window zoom factor. This should be a reduced fraction but for simplicity we will store all fractions with a numerator of 100.
_substitute_cellrefin file Worksheet.php, method Worksheet::_substitute_cellref()
    Substitute an Excel cell reference in A1 notation for zero based row and column values in an argument list.
_termin file Parser.php, method Parser::_term()
    It parses a term. It assumes the following rule: Term -> Fact [("*" | "/") Fact]
_write_big_block_depotin file OLEwriter.php, method OLEwriter::_write_big_block_depot()
    Write big block depot.
_write_paddingin file OLEwriter.php, method OLEwriter::_write_padding()
    Pad the end of the file
_write_property_storagein file OLEwriter.php, method OLEwriter::_write_property_storage()
    Write property storage. TODO: add summary sheets
_write_url_externalin file Worksheet.php, method Worksheet::_write_url_external()
    Write links to external directory names such as 'c:\foo.xls', c:\foo.xls#Sheet1!A1', '../../foo.xls'. and '../../foo.xls#Sheet1!A1'.
_write_url_internalin file Worksheet.php, method Worksheet::_write_url_internal()
    Used to write internal reference hyperlinks such as "Sheet1!A1".
_write_url_rangein file Worksheet.php, method Worksheet::_write_url_range()
    This is the more general form of write_url(). It allows a hyperlink to be written to a range of cells. This function also decides the type of hyperlink to be written. These are either, Web (http, ftp, mailto), Internal (Sheet1!A1) or external ('c:\temp\foo.xls#Sheet1!A1').
_write_url_webin file Worksheet.php, method Worksheet::_write_url_web()
    Used to write http, ftp and mailto hyperlinks.
_XFin file Worksheet.php, method Worksheet::_XF()
    Returns an index to the XF record in the workbook
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activatein file Worksheet.php, method Worksheet::activate()
    Set this worksheet as the active worksheet, i.e. the worksheet that is displayed when the workbook is opened. Also set it as selected.
ADDin file Parser.php, constant ADD
addformatin file Workbook.php, method Workbook::addformat()
    DEPRECATED!! Use add_format instead
addworksheetin file Workbook.php, method Workbook::addworksheet()
    DEPRECATED!! Use add_worksheet instead
add_formatin file Workbook.php, method Workbook::add_format()
    Add a new format to the Excel workbook. This adds an XF record and a FONT record. Also, pass any properties to the Format constructor.
add_worksheetin file Workbook.php, method Workbook::add_worksheet()
    Add a new worksheet to the Excel workbook.
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BIFFwriterin file BIFFwriter.php, method BIFFWriter::BIFFwriter()
    Constructor
BIFFWriterin file BIFFwriter.php, class BIFFWriter
    Class for writing Excel BIFF records.
BIFFwriter.phpprocedural page BIFFwriter.php
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center_horizontallyin file Worksheet.php, method Worksheet::center_horizontally()
    Center the page horinzontally.
center_verticallyin file Worksheet.php, method Worksheet::center_vertically()
    Center the page horinzontally.
closein file Worksheet.php, method Worksheet::close()
    Add data to the beginning of the workbook (note the reverse order) and to the end of the workbook.
closein file Workbook.php, method Workbook::close()
    Calls finalization methods and explicitly close the OLEwriter file handle.
closein file OLEwriter.php, method OLEwriter::close()
    Write root entry, big block list and close the filehandle.
CLOSEin file Parser.php, constant CLOSE
COMAin file Parser.php, constant COMA
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DIVin file Parser.php, constant DIV
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EQUALin file Parser.php, constant EQUAL
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Format.phpprocedural page Format.php
fit_to_pagesin file Worksheet.php, method Worksheet::fit_to_pages()
    Store the vertical and horizontal number of pages that will define the maximum area printed. It doesn't seem to work with OpenOffice.
Formatin file Format.php, method Format::Format()
    Constructor
Formatin file Format.php, class Format
    Class for generating Excel XF records (formats)
freeze_panesin file Worksheet.php, method Worksheet::freeze_panes()
    Set panes and mark them as frozen.
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get_datain file Worksheet.php, method Worksheet::get_data()
    Retrieves data from memory in one chunk, or from disk in $buffer sized chunks.
get_fontin file Format.php, method Format::get_font()
    Generate an Excel BIFF FONT record.
get_font_keyin file Format.php, method Format::get_font_key()
    Returns a unique hash key for a font. Used by Workbook->_store_all_fonts()
get_namein file Worksheet.php, method Worksheet::get_name()
    Retrieve the worksheet name. This is usefull when creating worksheets without a name.
get_xfin file Format.php, method Format::get_xf()
    Generate an Excel BIFF XF record (style or cell).
get_xf_indexin file Format.php, method Format::get_xf_index()
    Returns the index used by Worksheet->_XF()
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hide_gridlinesin file Worksheet.php, method Worksheet::hide_gridlines()
    Set the option to hide gridlines on the printed page.
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insert_bitmapin file Worksheet.php, method Worksheet::insert_bitmap()
    Insert a 24bit bitmap image in a worksheet. The main record required is IMDATA but it must be proceeded by a OBJ record to define its position.
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merge_cellsin file Worksheet.php, method Worksheet::merge_cells()
    This is an Excel97/2000 method. It is required to perform more complicated merging than the normal set_align('merge'). It merges the area given by its arguments.
MULin file Parser.php, constant MUL
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OLEwriter.phpprocedural page OLEwriter.php
OLEwriterin file OLEwriter.php, method OLEwriter::OLEwriter()
    Class for creating an OLEwriter
OLEwriterin file OLEwriter.php, class OLEwriter
    Class for creating OLE streams for Excel Spreadsheets
OPENin file Parser.php, constant OPEN
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Parser.phpprocedural page Parser.php
parsein file Parser.php, method Parser::parse()
    The parsing method. It parses a formula.
Parserin file Parser.php, method Parser::Parser()
    The class constructor
Parserin file Parser.php, class Parser
    Class for parsing Excel formulas
print_areain file Worksheet.php, method Worksheet::print_area()
    Set the area of each worksheet that will be printed.
print_row_col_headersin file Worksheet.php, method Worksheet::print_row_col_headers()
    Set the option to print the row and column headers on the printed page.
protectin file Worksheet.php, method Worksheet::protect()
    Set the worksheet protection flag to prevent accidental modification and to hide formulas if the locked and hidden format properties have been set.
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repeat_columnsin file Worksheet.php, method Worksheet::repeat_columns()
    Set the columns to repeat at the left hand side of each printed page.
repeat_rowsin file Worksheet.php, method Worksheet::repeat_rows()
    Set the rows to repeat at the top of each printed page. See also the _store_name_xxxx() methods in Workbook.php
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selectin file Worksheet.php, method Worksheet::select()
    Set this worksheet as a selected worksheet, i.e. the worksheet has its tab highlighted.
set_alignin file Format.php, method Format::set_align()
    Set cell alignment.
set_bg_colorin file Format.php, method Format::set_bg_color()
    Sets the cell's background color
set_boldin file Format.php, method Format::set_bold()
    Bold has a range 0x64..0x3E8.
set_borderin file Format.php, method Format::set_border()
    Set cells borders to the same style
set_border_colorin file Format.php, method Format::set_border_color()
    Sets all the cell's borders to the same color
set_bottomin file Format.php, method Format::set_bottom()
    Sets the bottom border of the cell
set_bottom_colorin file Format.php, method Format::set_bottom_color()
    Sets the cell's bottom border color
set_colorin file Format.php, method Format::set_color()
    Sets the cell's color
set_columnin file Worksheet.php, method Worksheet::set_column()
    Set the width of a single column or a range of columns.
set_custom_colorin file Workbook.php, method Workbook::set_custom_color()
    Change the RGB components of the elements in the colour palette.
set_fg_colorin file Format.php, method Format::set_fg_color()
    Sets the cell's foreground color
set_first_sheetin file Worksheet.php, method Worksheet::set_first_sheet()
    Set this worksheet as the first visible sheet. This is necessary when there are a large number of worksheets and the activated worksheet is not visible on the screen.
set_footerin file Worksheet.php, method Worksheet::set_footer()
    Set the page footer caption and optional margin.
set_headerin file Worksheet.php, method Worksheet::set_header()
    Set the page header caption and optional margin.
set_h_pagebreaksin file Worksheet.php, method Worksheet::set_h_pagebreaks()
    Store the horizontal page breaks on a worksheet (for printing).
set_italicin file Format.php, method Format::set_italic()
    Sets the font style as italic
set_landscapein file Worksheet.php, method Worksheet::set_landscape()
    Set the page orientation as landscape.
set_leftin file Format.php, method Format::set_left()
    Sets the left border of the cell
set_left_colorin file Format.php, method Format::set_left_color()
    Sets the cell's left border color
set_marginsin file Worksheet.php, method Worksheet::set_margins()
    Set all the page margins to the same value in inches.
set_margins_LRin file Worksheet.php, method Worksheet::set_margins_LR()
    Set the left and right margins to the same value in inches.
set_margins_TBin file Worksheet.php, method Worksheet::set_margins_TB()
    Set the top and bottom margins to the same value in inches.
set_margin_bottomin file Worksheet.php, method Worksheet::set_margin_bottom()
    Set the bottom margin in inches.
set_margin_leftin file Worksheet.php, method Worksheet::set_margin_left()
    Set the left margin in inches.
set_margin_rightin file Worksheet.php, method Worksheet::set_margin_right()
    Set the right margin in inches.
set_margin_topin file Worksheet.php, method Worksheet::set_margin_top()
    Set the top margin in inches.
set_mergein file Format.php, method Format::set_merge()
    This is an alias for the unintuitive set_align('merge')
set_num_formatin file Format.php, method Format::set_num_format()
    Sets the num format
set_paperin file Worksheet.php, method Worksheet::set_paper()
    Set the paper type. Ex. 1 = US Letter, 9 = A4
set_patternin file Format.php, method Format::set_pattern()
    Sets the pattern attribute of a cell
set_portraitin file Worksheet.php, method Worksheet::set_portrait()
    Set the page orientation as portrait.
set_print_scalein file Worksheet.php, method Worksheet::set_print_scale()
    Set the scale factor for the printed page.
set_rightin file Format.php, method Format::set_right()
    Sets the right border of the cell
set_right_colorin file Format.php, method Format::set_right_color()
    Sets the cell's right border color
set_rowin file Worksheet.php, method Worksheet::set_row()
    This method is used to set the height and XF format for a row.
set_selectionin file Worksheet.php, method Worksheet::set_selection()
    Set which cell or cells are selected in a worksheet
set_sizein file OLEwriter.php, method OLEwriter::set_size()
    Set the size of the data to be written to the OLE stream.
set_sizein file Format.php, method Format::set_size()
    Sets the font size
set_text_wrapin file Format.php, method Format::set_text_wrap()
    Sets text wrapping
set_topin file Format.php, method Format::set_top()
    Sets the top border of the cell
set_top_colorin file Format.php, method Format::set_top_color()
    Sets the cell's top border color
set_underlinein file Format.php, method Format::set_underline()
    Sets the underline of the text
set_v_pagebreaksin file Worksheet.php, method Worksheet::set_v_pagebreaks()
    Store the vertical page breaks on a worksheet (for printing).
set_zoomin file Worksheet.php, method Worksheet::set_zoom()
    Set the worksheet zoom factor.
sheetsin file Workbook.php, method Workbook::sheets()
    An accessor for the _worksheets[] array Returns an array of the worksheet objects in a workbook
size_colin file Worksheet.php, method Worksheet::size_col()
    Convert the width of a cell from user's units to pixels. By interpolation the relationship is: y = 7x +5. If the width hasn't been set by the user we use the default value. If the col is hidden we use a value of zero.
size_rowin file Worksheet.php, method Worksheet::size_row()
    Convert the height of a cell from user's units to pixels. By interpolation the relationship is: y = 4/3x. If the height hasn't been set by the user we use the default value. If the row is hidden we use a value of zero. (Not possible to hide row yet).
store_footerin file Worksheet.php, method Worksheet::store_footer()
    Store the footer caption BIFF record.
store_hcenterin file Worksheet.php, method Worksheet::store_hcenter()
    Store the horizontal centering HCENTER BIFF record.
store_headerin file Worksheet.php, method Worksheet::store_header()
    Store the header caption BIFF record.
store_name_longin file Workbook.php, method Workbook::store_name_long()
    Store the NAME record in the long format that is used for storing the repeat rows and columns when both are specified. This share a lot of code with _store_name_short() but we use a separate method to keep the code clean.
store_name_shortin file Workbook.php, method Workbook::store_name_short()
    Store the NAME record in the short format that is used for storing the print area, repeat rows only and repeat columns only.
store_vcenterin file Worksheet.php, method Worksheet::store_vcenter()
    Store the vertical centering VCENTER BIFF record.
store_workbookin file Workbook.php, method Workbook::store_workbook()
    Assemble worksheets into a workbook and send the BIFF data to an OLE storage.
SUBin file Parser.php, constant SUB
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thaw_panesin file Worksheet.php, method Worksheet::thaw_panes()
    Set panes and mark them as unfrozen.
to_reverse_polishin file Parser.php, method Parser::to_reverse_polish()
    Builds a string containing the tree in reverse polish notation (What you would use in a HP calculator stack).
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Workbook.phpprocedural page Workbook.php
Worksheet.phpprocedural page Worksheet.php
Workbookin file Workbook.php, method Workbook::Workbook()
    Class constructor
Workbookin file Workbook.php, class Workbook
    Class for generating Excel Spreadsheets
Worksheetin file Worksheet.php, method Worksheet::Worksheet()
    Constructor
Worksheetin file Worksheet.php, class Worksheet
    Class for generating Excel Spreadsheets
worksheetsin file Workbook.php, method Workbook::worksheets()
    An accessor for the _worksheets[] array.
writein file OLEwriter.php, method OLEwriter::write()
    Write BIFF data to OLE file.
writein file Worksheet.php, method Worksheet::write()
    Map to the appropriate write method acording to the token recieved.
write_blankin file Worksheet.php, method Worksheet::write_blank()
    Write a blank cell to the specified row and column (zero indexed).
write_formulain file Worksheet.php, method Worksheet::write_formula()
    Write a formula to the specified row and column (zero indexed).
write_headerin file OLEwriter.php, method OLEwriter::write_header()
    Write OLE header block.
write_notein file Worksheet.php, method Worksheet::write_note()
    Writes a note associated with the cell given by the row and column.
write_numberin file Worksheet.php, method Worksheet::write_number()
    Write a double to the specified row and column (zero indexed).
write_stringin file Worksheet.php, method Worksheet::write_string()
    Write a string to the specified row and column (zero indexed).
write_urlin file Worksheet.php, method Worksheet::write_url()
    Write a hyperlink. This is comprised of two elements: the visible label and the invisible link. The visible label is the same as the link unless an alternative string is specified. The label is written using the write_string() method. Therefore the 255 characters string limit applies.