General performance improvements, and specific improvements in the CSV Reader

git-svn-id: https://phpexcel.svn.codeplex.com/svn/trunk@65064 2327b42d-5241-43d6-9e2a-de5ac946f064

Classes/PHPExcel/DocumentProperties.php

@@ -49,7 +49,7 @@ class PHPExcel_DocumentProperties
 	 *
 	 * @var	string
 	 */
-	private $_creator;
+	private $_creator	= 'Unknown Creator';
 
 	/**
 	 * LastModifiedBy
@@ -77,42 +77,49 @@ class PHPExcel_DocumentProperties
 	 *
 	 * @var	string
 	 */
-	private $_title;
+	private $_title			= 'Untitled Spreadsheet';
 
 	/**
 	 * Description
 	 *
 	 * @var	string
 	 */
-	private $_description;
+	private $_description	= '';
 
 	/**
 	 * Subject
 	 *
 	 * @var	string
 	 */
-	private $_subject;
+	private $_subject		= '';
 
 	/**
 	 * Keywords
 	 *
 	 * @var	string
 	 */
-	private $_keywords;
+	private $_keywords		= '';
 
 	/**
 	 * Category
 	 *
 	 * @var	string
 	 */
-	private $_category;
+	private $_category		= '';
+
+	/**
+	 * Manager
+	 *
+	 * @var	string
+	 */
+	private $_manager		= '';
 
 	/**
 	 * Company
 	 *
 	 * @var	string
 	 */
-	private $_company;
+	private $_company		= 'Microsoft Corporation';
 
 	/**
 	 * Custom Properties
@@ -128,17 +135,9 @@ class PHPExcel_DocumentProperties
 	public function __construct()
 	{
 		// Initialise values
-		$this->_creator		= 'Unknown Creator';
 		$this->_lastModifiedBy	= $this->_creator;
 		$this->_created		= time();
 		$this->_modified	= time();
-		$this->_title			= "Untitled Spreadsheet";
-		$this->_subject			= '';
-		$this->_description		= '';
-		$this->_keywords		= '';
-		$this->_category		= '';
-		$this->_manager			= '';
-		$this->_company		= 'Microsoft Corporation';
 	}
 
 	/**

Classes/PHPExcel/Reader/CSV.php

@@ -50,7 +50,7 @@ class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader
 	 *	@access	private
 	 *	@var	string
 	 */
-	private $_inputEncoding;
+	private $_inputEncoding	= 'UTF-8';
 
 	/**
 	 *	Delimiter
@@ -58,7 +58,7 @@ class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader
 	 *	@access	private
 	 *	@var string
 	 */
-	private $_delimiter;
+	private $_delimiter		= ',';
 
 	/**
 	 *	Enclosure
@@ -66,7 +66,7 @@ class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader
 	 *	@access	private
 	 *	@var	string
 	 */
-	private $_enclosure;
+	private $_enclosure		= '"';
 
 	/**
 	 *	Line ending
@@ -74,7 +74,7 @@ class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader
 	 *	@access	private
 	 *	@var	string
 	 */
-	private $_lineEnding;
+	private $_lineEnding	= PHP_EOL;
 
 	/**
 	 *	Sheet index to read
@@ -82,7 +82,7 @@ class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader
 	 *	@access	private
 	 *	@var	int
 	 */
-	private $_sheetIndex;
+	private $_sheetIndex	= 0;
 
 	/**
 	 *	Load rows contiguously
@@ -90,7 +90,7 @@ class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader
 	 *	@access	private
 	 *	@var	int
 	 */
-	private $_contiguous;
+	private $_contiguous	= false;
 
 
 	/**
@@ -99,7 +99,7 @@ class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader
 	 *	@access	private
 	 *	@var	int
 	 */
-	private $_contiguousRow;
+	private $_contiguousRow	= -1;
 
 	/**
 	 *	PHPExcel_Reader_IReadFilter instance
@@ -113,14 +113,7 @@ class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader
 	 *	Create a new PHPExcel_Reader_CSV
 	 */
 	public function __construct() {
-		$this->_inputEncoding	= 'UTF-8';
-		$this->_delimiter		= ',';
-		$this->_enclosure		= '"';
-		$this->_lineEnding		= PHP_EOL;
-		$this->_sheetIndex		= 0;
 		$this->_readFilter		= new PHPExcel_Reader_DefaultReadFilter();
-		$this->_contiguous		= false;
-		$this->_contiguousRow	= -1;
 	}	//	function __construct()
 
 	/**
@@ -236,6 +229,22 @@ class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader
 				fgets($fileHandle, 4) == "\xEF\xBB\xBF" ?
 					fseek($fileHandle, 3) : fseek($fileHandle, 0);
 				break;
+			case 'UTF-16LE':
+				fgets($fileHandle, 3) == "\xFF\xFE" ?
+					fseek($fileHandle, 2) : fseek($fileHandle, 0);
+				break;
+			case 'UTF-16BE':
+				fgets($fileHandle, 3) == "\xFE\xFF" ?
+					fseek($fileHandle, 2) : fseek($fileHandle, 0);
+				break;
+			case 'UTF-32LE':
+				fgets($fileHandle, 5) == "\xFF\xFE\x00\x00" ?
+					fseek($fileHandle, 4) : fseek($fileHandle, 0);
+				break;
+			case 'UTF-32BE':
+				fgets($fileHandle, 5) == "\x00\x00\xFE\xFF" ?
+					fseek($fileHandle, 4) : fseek($fileHandle, 0);
+				break;
 			default:
 				break;
 		}
@@ -244,42 +253,40 @@ class PHPExcel_Reader_CSV implements PHPExcel_Reader_IReader
 								   $this->_enclosure . $this->_enclosure
 								 );
 
-		// Loop through file
-		$currentRow = 0;
-		if ($this->_contiguousRow == -1) {
-			$this->_contiguousRow = $objPHPExcel->getActiveSheet()->getHighestRow();
+		// Set our starting row based on whether we're in contiguous mode or not
+		$currentRow = 1;
+		if ($this->_contiguous) {
+			$currentRow = ($this->_contiguousRow == -1) ? $objPHPExcel->getActiveSheet()->getHighestRow(): $this->_contiguousRow;
 		}
-		$rowData = array();
+
+		// Loop through each line of the file in turn
 		while (($rowData = fgetcsv($fileHandle, 0, $this->_delimiter, $this->_enclosure)) !== FALSE) {
-			++$currentRow;
-			$rowDataCount = count($rowData);
 			$columnLetter = 'A';
-			for ($i = 0; $i < $rowDataCount; ++$i) {
-				if ($rowData[$i] != '' && $this->_readFilter->readCell($columnLetter, $currentRow)) {
+			foreach($rowData as $rowDatum) {
+				if ($rowDatum != '' && $this->_readFilter->readCell($columnLetter, $currentRow)) {
 					// Unescape enclosures
-					$rowData[$i] = str_replace($escapeEnclosures, $this->_enclosure, $rowData[$i]);
+					$rowDatum = str_replace($escapeEnclosures, $this->_enclosure, $rowDatum);
 
 					// Convert encoding if necessary
 					if ($this->_inputEncoding !== 'UTF-8') {
-						$rowData[$i] = PHPExcel_Shared_String::ConvertEncoding($rowData[$i], 'UTF-8', $this->_inputEncoding);
+						$rowDatum = PHPExcel_Shared_String::ConvertEncoding($rowDatum, 'UTF-8', $this->_inputEncoding);
 					}
 
-					if ($this->_contiguous) {
 					// Set cell value
-						$objPHPExcel->getActiveSheet()->getCell($columnLetter . $this->_contiguousRow)->setValue($rowData[$i]);
-					} else {
-						// Set cell value
-						$objPHPExcel->getActiveSheet()->getCell($columnLetter . $currentRow)->setValue($rowData[$i]);
-					}
+					$objPHPExcel->getActiveSheet()->getCell($columnLetter . $currentRow)->setValue($rowDatum);
 				}
 				++$columnLetter;
 			}
-			++$this->_contiguousRow;
+			++$currentRow;
 		}
 
 		// Close file
 		fclose($fileHandle);
 
+		if ($this->_contiguous) {
+			$this->_contiguousRow = $currentRow;
+		}
+
 		// Return
 		return $objPHPExcel;
 	}	//	function loadIntoExisting()

Classes/PHPExcel/Reader/Excel2003XML.php

@@ -63,7 +63,7 @@ class PHPExcel_Reader_Excel2003XML implements PHPExcel_Reader_IReader
 	 *
 	 * @var int
 	 */
-	private $_sheetIndex;
+	private $_sheetIndex 	= 0;
 
 	/**
 	 * Formats
@@ -158,7 +158,6 @@ class PHPExcel_Reader_Excel2003XML implements PHPExcel_Reader_IReader
 	 * Create a new PHPExcel_Reader_Excel2003XML
 	 */
 	public function __construct() {
-		$this->_sheetIndex 	= 0;
 		$this->_readFilter 	= new PHPExcel_Reader_DefaultReadFilter();
 	}
 

Classes/PHPExcel/Reader/Excel2007.php

@@ -431,7 +431,7 @@ class PHPExcel_Reader_Excel2007 implements PHPExcel_Reader_IReader
 
 							// add style to cellXf collection
 							$objStyle = new PHPExcel_Style;
-							$this->_readStyle($objStyle, $style);
+							self::_readStyle($objStyle, $style);
 							$excel->addCellXf($objStyle);
 						}
 
@@ -458,7 +458,7 @@ class PHPExcel_Reader_Excel2007 implements PHPExcel_Reader_IReader
 
 							// add style to cellStyleXf collection
 							$objStyle = new PHPExcel_Style;
-							$this->_readStyle($objStyle, $cellStyle);
+							self::_readStyle($objStyle, $cellStyle);
 							$excel->addCellStyleXf($objStyle);
 						}
 					}
@@ -468,7 +468,7 @@ class PHPExcel_Reader_Excel2007 implements PHPExcel_Reader_IReader
 						if ($xmlStyles->dxfs) {
 							foreach ($xmlStyles->dxfs->dxf as $dxf) {
 								$style = new PHPExcel_Style;
-								$this->_readStyle($style, $dxf);
+								self::_readStyle($style, $dxf);
 								$dxfs[] = $style;
 							}
 						}
@@ -480,7 +480,7 @@ class PHPExcel_Reader_Excel2007 implements PHPExcel_Reader_IReader
 									if (isset($cellStyles[intval($cellStyle['xfId'])])) {
 										// Set default style
 										$style = new PHPExcel_Style;
-										$this->_readStyle($style, $cellStyles[intval($cellStyle['xfId'])]);
+										self::_readStyle($style, $cellStyles[intval($cellStyle['xfId'])]);
 
 										// normal style, currently not using it for anything
 									}
@@ -1439,7 +1439,7 @@ class PHPExcel_Reader_Excel2007 implements PHPExcel_Reader_IReader
 		}
 	}
 
-	private function _readStyle($docStyle, $style) {
+	private static function _readStyle($docStyle, $style) {
 		// format code
 		if (isset($style->numFmt)) {
 			$docStyle->getNumberFormat()->setFormatCode($style->numFmt);

Classes/PHPExcel/Reader/Gnumeric.php

@@ -63,7 +63,7 @@ class PHPExcel_Reader_Gnumeric implements PHPExcel_Reader_IReader
 	 *
 	 * @var int
 	 */
-	private $_sheetIndex;
+	private $_sheetIndex 	= 0;
 
 	/**
 	 * Formats
@@ -167,7 +167,6 @@ class PHPExcel_Reader_Gnumeric implements PHPExcel_Reader_IReader
 	 * Create a new PHPExcel_Reader_Gnumeric
 	 */
 	public function __construct() {
-		$this->_sheetIndex 	= 0;
 		$this->_readFilter 	= new PHPExcel_Reader_DefaultReadFilter();
 		$this->_referenceHelper = PHPExcel_ReferenceHelper::getInstance();
 	}

Classes/PHPExcel/Reader/OOCalc.php

@@ -63,7 +63,7 @@ class PHPExcel_Reader_OOCalc implements PHPExcel_Reader_IReader
 	 *
 	 * @var int
 	 */
-	private $_sheetIndex;
+	private $_sheetIndex 	= 0;
 
 	/**
 	 * Formats
@@ -158,7 +158,6 @@ class PHPExcel_Reader_OOCalc implements PHPExcel_Reader_IReader
 	 * Create a new PHPExcel_Reader_OOCalc
 	 */
 	public function __construct() {
-		$this->_sheetIndex 	= 0;
 		$this->_readFilter 	= new PHPExcel_Reader_DefaultReadFilter();
 	}
 

Classes/PHPExcel/Reader/SYLK.php

@@ -49,14 +49,14 @@ class PHPExcel_Reader_SYLK implements PHPExcel_Reader_IReader
 	 *
 	 * @var string
 	 */
-	private $_inputEncoding;
+	private $_inputEncoding	= 'ANSI';
 
 	/**
 	 * Sheet index to read
 	 *
 	 * @var int
 	 */
-	private $_sheetIndex;
+	private $_sheetIndex 	= 0;
 
 	/**
 	 * Formats
@@ -83,8 +83,6 @@ class PHPExcel_Reader_SYLK implements PHPExcel_Reader_IReader
 	 * Create a new PHPExcel_Reader_SYLK
 	 */
 	public function __construct() {
-		$this->_inputEncoding = 'ANSI';
-		$this->_sheetIndex 	= 0;
 		$this->_readFilter 	= new PHPExcel_Reader_DefaultReadFilter();
 	}
 

Classes/PHPExcel/Style/Alignment.php

@@ -54,42 +54,42 @@ class PHPExcel_Style_Alignment implements PHPExcel_IComparable
 	 *
 	 * @var string
 	 */
-	private $_horizontal;
+	private $_horizontal	= PHPExcel_Style_Alignment::HORIZONTAL_GENERAL;
 
 	/**
 	 * Vertical
 	 *
 	 * @var string
 	 */
-	private $_vertical;
+	private $_vertical		= PHPExcel_Style_Alignment::VERTICAL_BOTTOM;
 
 	/**
 	 * Text rotation
 	 *
 	 * @var int
 	 */
-	private $_textRotation;
+	private $_textRotation	= 0;
 
 	/**
 	 * Wrap text
 	 *
 	 * @var boolean
 	 */
-	private $_wrapText;
+	private $_wrapText		= false;
 
 	/**
 	 * Shrink to fit
 	 *
 	 * @var boolean
 	 */
-	private $_shrinkToFit;
+	private $_shrinkToFit	= false;
 
 	/**
 	 * Indent - only possible with horizontal alignment left and right
 	 *
 	 * @var int
 	 */
-	private $_indent;
+	private $_indent		= 0;
 
 	/**
 	 * Parent Borders
@@ -119,14 +119,6 @@ class PHPExcel_Style_Alignment implements PHPExcel_IComparable
 	{
 		// Supervisor?
 		$this->_isSupervisor = $isSupervisor;
-
-    	// Initialise values
-    	$this->_horizontal			= PHPExcel_Style_Alignment::HORIZONTAL_GENERAL;
-    	$this->_vertical			= PHPExcel_Style_Alignment::VERTICAL_BOTTOM;
-    	$this->_textRotation		= 0;
-    	$this->_wrapText			= false;
-		$this->_shrinkToFit			= false;
-		$this->_indent				= 0;
 	}
 
 	/**

Classes/PHPExcel/Style/Border.php

@@ -56,7 +56,7 @@ class PHPExcel_Style_Border implements PHPExcel_IComparable
 	 *
 	 * @var string
 	 */
-	private $_borderStyle;
+	private $_borderStyle	= PHPExcel_Style_Border::BORDER_NONE;
 
 	/**
 	 * Border color
@@ -95,7 +95,6 @@ class PHPExcel_Style_Border implements PHPExcel_IComparable
 		$this->_isSupervisor = $isSupervisor;
 
 		// Initialise values
-		$this->_borderStyle			= PHPExcel_Style_Border::BORDER_NONE;
 		$this->_color			= new PHPExcel_Style_Color(PHPExcel_Style_Color::COLOR_BLACK, $isSupervisor);
 
 		// bind parent if we are a supervisor

Classes/PHPExcel/Style/Fill.php

@@ -63,14 +63,14 @@ class PHPExcel_Style_Fill implements PHPExcel_IComparable
 	 *
 	 * @var string
 	 */
-	private $_fillType;
+	private $_fillType	= PHPExcel_Style_Fill::FILL_NONE;
 
 	/**
 	 * Rotation
 	 *
 	 * @var double
 	 */
-	private $_rotation;
+	private $_rotation	= 0;
 
 	/**
 	 * Start color
@@ -116,8 +116,6 @@ class PHPExcel_Style_Fill implements PHPExcel_IComparable
 		$this->_isSupervisor = $isSupervisor;
 
 		// Initialise values
-    	$this->_fillType			= PHPExcel_Style_Fill::FILL_NONE;
-    	$this->_rotation			= 0;
 		$this->_startColor			= new PHPExcel_Style_Color(PHPExcel_Style_Color::COLOR_WHITE, $isSupervisor);
 		$this->_endColor			= new PHPExcel_Style_Color(PHPExcel_Style_Color::COLOR_BLACK, $isSupervisor);
 

Classes/PHPExcel/Style/Font.php

@@ -43,53 +43,60 @@ class PHPExcel_Style_Font implements PHPExcel_IComparable
 	const UNDERLINE_SINGLEACCOUNTING		= 'singleAccounting';
 
 	/**
-	 * Name
+	 * Font Name
 	 *
 	 * @var string
 	 */
-	private $_name;
+	private $_name			= 'Calibri';
+
+	/**
+	 * Font Size
+	 *
+	 * @var float
+	 */
+	private $_size			= 11;
 
 	/**
 	 * Bold
 	 *
 	 * @var boolean
 	 */
-	private $_bold;
+	private $_bold			= false;
 
 	/**
 	 * Italic
 	 *
 	 * @var boolean
 	 */
-	private $_italic;
+	private $_italic		= false;
 
 	/**
 	 * Superscript
 	 *
 	 * @var boolean
 	 */
-	private $_superScript;
+	private $_superScript	= false;
 
 	/**
 	 * Subscript
 	 *
 	 * @var boolean
 	 */
-	private $_subScript;
+	private $_subScript		= false;
 
 	/**
 	 * Underline
 	 *
 	 * @var string
 	 */
-	private $_underline;
+	private $_underline		= PHPExcel_Style_Font::UNDERLINE_NONE;
 
 	/**
 	 * Strikethrough
 	 *
 	 * @var boolean
 	 */
-	private $_strikethrough;
+	private $_strikethrough	= false;
 
 	/**
 	 * Foreground color
@@ -128,14 +135,6 @@ class PHPExcel_Style_Font implements PHPExcel_IComparable
 		$this->_isSupervisor = $isSupervisor;
 
 		// Initialise values
-    	$this->_name				= 'Calibri';
-    	$this->_size				= 11;
-		$this->_bold				= false;
-		$this->_italic				= false;
-		$this->_superScript			= false;
-		$this->_subScript			= false;
-		$this->_underline			= PHPExcel_Style_Font::UNDERLINE_NONE;
-		$this->_strikethrough		= false;
 		$this->_color				= new PHPExcel_Style_Color(PHPExcel_Style_Color::COLOR_BLACK, $isSupervisor);
 
 		// bind parent if we are a supervisor

Classes/PHPExcel/Style/NumberFormat.php

@@ -94,14 +94,14 @@ class PHPExcel_Style_NumberFormat implements PHPExcel_IComparable
 	 *
 	 * @var string
 	 */
-	private $_formatCode;
+	private $_formatCode	=	PHPExcel_Style_NumberFormat::FORMAT_GENERAL;
 
 	/**
 	 * Built-in format Code
 	 *
 	 * @var string
 	 */
-	private $_builtInFormatCode;
+	private $_builtInFormatCode	= 0;
 
 	/**
 	 * Parent Borders
@@ -131,10 +131,6 @@ class PHPExcel_Style_NumberFormat implements PHPExcel_IComparable
 	{
 		// Supervisor?
 		$this->_isSupervisor = $isSupervisor;
-
-		// Initialise values
-		$this->_formatCode			= PHPExcel_Style_NumberFormat::FORMAT_GENERAL;
-		$this->_builtInFormatCode	= 0;
 	}
 
 	/**

Classes/PHPExcel/Worksheet.php

@@ -351,14 +351,6 @@ class PHPExcel_Worksheet implements PHPExcel_IComparable
 		// Protection
 		$this->_protection			= new PHPExcel_Worksheet_Protection();
 
-		// Gridlines
-		$this->_showGridlines		= true;
-		$this->_printGridlines		= false;
-
-		// Outline summary
-		$this->_showSummaryBelow	= true;
-		$this->_showSummaryRight	= true;
-
 		// Default row dimension
 		$this->_defaultRowDimension = new PHPExcel_Worksheet_RowDimension(null);
 

Classes/PHPExcel/Worksheet/ColumnDimension.php

@@ -49,21 +49,21 @@ class PHPExcel_Worksheet_ColumnDimension
 	 *
 	 * @var double
 	 */
-	private $_width;
+	private $_width			= -1;
 
 	/**
 	 * Auto size?
 	 *
 	 * @var bool
 	 */
-	private $_autoSize;
+	private $_autoSize		= false;
 
 	/**
 	 * Visible?
 	 *
 	 * @var bool
 	 */
-	private $_visible;
+	private $_visible		= true;
 
 	/**
 	 * Outline level
@@ -77,7 +77,7 @@ class PHPExcel_Worksheet_ColumnDimension
 	 *
 	 * @var bool
 	 */
-	private $_collapsed;
+	private $_collapsed		= false;
 
 	/**
 	 * Index to cellXf
@@ -95,11 +95,6 @@ class PHPExcel_Worksheet_ColumnDimension
     {
     	// Initialise values
     	$this->_columnIndex		= $pIndex;
-    	$this->_width			= -1;
-    	$this->_autoSize		= false;
-    	$this->_visible			= true;
-    	$this->_outlineLevel	= 0;
-    	$this->_collapsed		= false;
 
 		// set default index to cellXf
 		$this->_xfIndex = 0;

Classes/PHPExcel/Worksheet/HeaderFooter.php

@@ -108,70 +108,70 @@ class PHPExcel_Worksheet_HeaderFooter
 	 *
 	 * @var string
 	 */
-	private $_oddHeader;
+	private $_oddHeader			= '';
 
 	/**
 	 * OddFooter
 	 *
 	 * @var string
 	 */
-	private $_oddFooter;
+	private $_oddFooter			= '';
 
 	/**
 	 * EvenHeader
 	 *
 	 * @var string
 	 */
-	private $_evenHeader;
+	private $_evenHeader		= '';
 
 	/**
 	 * EvenFooter
 	 *
 	 * @var string
 	 */
-	private $_evenFooter;
+	private $_evenFooter		= '';
 
 	/**
 	 * FirstHeader
 	 *
 	 * @var string
 	 */
-	private $_firstHeader;
+	private $_firstHeader		= '';
 
 	/**
 	 * FirstFooter
 	 *
 	 * @var string
 	 */
-	private $_firstFooter;
+	private $_firstFooter		= '';
 
 	/**
 	 * Different header for Odd/Even, defaults to false
 	 *
 	 * @var boolean
 	 */
-	private $_differentOddEven;
+	private $_differentOddEven	= false;
 
 	/**
 	 * Different header for first page, defaults to false
 	 *
 	 * @var boolean
 	 */
-	private $_differentFirst;
+	private $_differentFirst	= false;
 
 	/**
 	 * Scale with document, defaults to true
 	 *
 	 * @var boolean
 	 */
-	private $_scaleWithDocument;
+	private $_scaleWithDocument	= true;
 
 	/**
 	 * Align with margins, defaults to true
 	 *
 	 * @var boolean
 	 */
-	private $_alignWithMargins;
+	private $_alignWithMargins	= true;
 
 	/**
 	 * Header/footer images
@@ -185,18 +185,6 @@ class PHPExcel_Worksheet_HeaderFooter
      */
     public function __construct()
     {
-    	// Initialise values
-    	$this->_oddHeader			= '';
-    	$this->_oddFooter			= '';
-    	$this->_evenHeader			= '';
-    	$this->_evenFooter			= '';
-    	$this->_firstHeader			= '';
-    	$this->_firstFooter			= '';
-    	$this->_differentOddEven 	= false;
-    	$this->_differentFirst 		= false;
-    	$this->_scaleWithDocument 	= true;
-    	$this->_alignWithMargins 	= true;
-    	$this->_headerFooterImages	= array();
     }
 
     /**

Classes/PHPExcel/Worksheet/PageMargins.php

@@ -40,55 +40,48 @@ class PHPExcel_Worksheet_PageMargins
 	 *
 	 * @var double
 	 */
-	private $_left;
+	private $_left		= 0.7;
 
 	/**
 	 * Right
 	 *
 	 * @var double
 	 */
-	private $_right;
+	private $_right		= 0.7;
 
 	/**
 	 * Top
 	 *
 	 * @var double
 	 */
-	private $_top;
+	private $_top		= 0.75;
 
 	/**
 	 * Bottom
 	 *
 	 * @var double
 	 */
-	private $_bottom;
+	private $_bottom	= 0.75;
 
 	/**
 	 * Header
 	 *
 	 * @var double
 	 */
-	private $_header;
+	private $_header 	= 0.3;
 
 	/**
 	 * Footer
 	 *
 	 * @var double
 	 */
-	private $_footer;
+	private $_footer 	= 0.3;
 
     /**
      * Create a new PHPExcel_Worksheet_PageMargins
      */
     public function __construct()
     {
-    	// Initialise values
-    	$this->_left 	= 0.7;
-    	$this->_right 	= 0.7;
-    	$this->_top 	= 0.75;
-    	$this->_bottom 	= 0.75;
-    	$this->_header 	= 0.3;
-    	$this->_footer 	= 0.3;
     }
 
     /**

Classes/PHPExcel/Worksheet/PageSetup.php

@@ -189,14 +189,14 @@ class PHPExcel_Worksheet_PageSetup
 	 *
 	 * @var int
 	 */
-	private $_paperSize;
+	private $_paperSize		= PHPExcel_Worksheet_PageSetup::PAPERSIZE_LETTER;
 
 	/**
 	 * Orientation
 	 *
 	 * @var string
 	 */
-	private $_orientation;
+	private $_orientation	= PHPExcel_Worksheet_PageSetup::ORIENTATION_DEFAULT;
 
 	/**
 	 * Scale (Print Scale)
@@ -206,7 +206,7 @@ class PHPExcel_Worksheet_PageSetup
 	 *
 	 * @var int?
 	 */
-	private $_scale;
+	private $_scale			= 100;
 
 	/**
 	  * Fit To Page
@@ -214,7 +214,7 @@ class PHPExcel_Worksheet_PageSetup
 	  *
 	  * @var boolean
 	  */
-	private $_fitToPage;
+	private $_fitToPage		= false;
 
 	/**
 	  * Fit To Height
@@ -222,7 +222,7 @@ class PHPExcel_Worksheet_PageSetup
 	  *
 	  * @var int?
 	  */
-	private $_fitToHeight;
+	private $_fitToHeight	= 1;
 
 	/**
 	  * Fit To Width
@@ -230,7 +230,7 @@ class PHPExcel_Worksheet_PageSetup
 	  *
 	  * @var int?
 	  */
-	private $_fitToWidth;
+	private $_fitToWidth	= 1;
 
 	/**
 	 * Columns to repeat at left
@@ -279,19 +279,6 @@ class PHPExcel_Worksheet_PageSetup
      */
     public function __construct()
     {
-    	// Initialise values
-    	$this->_paperSize 				= PHPExcel_Worksheet_PageSetup::PAPERSIZE_LETTER;
-    	$this->_orientation				= PHPExcel_Worksheet_PageSetup::ORIENTATION_DEFAULT;
-    	$this->_scale					= 100;
-    	$this->_fitToPage				= false;
-    	$this->_fitToHeight				= 1;
-    	$this->_fitToWidth				= 1;
-    	$this->_columnsToRepeatAtLeft 	= array('', '');
-    	$this->_rowsToRepeatAtTop		= array(0, 0);
-    	$this->_horizontalCentered		= false;
-    	$this->_verticalCentered		= false;
-    	$this->_printArea				= null;
-    	$this->_firstPageNumber         = null;
     }
 
     /**

Classes/PHPExcel/Worksheet/Protection.php

@@ -40,143 +40,125 @@ class PHPExcel_Worksheet_Protection
 	 *
 	 * @var boolean
 	 */
-	private $_sheet;
+	private $_sheet					= false;
 
 	/**
 	 * Objects
 	 *
 	 * @var boolean
 	 */
-	private $_objects;
+	private $_objects				= false;
 
 	/**
 	 * Scenarios
 	 *
 	 * @var boolean
 	 */
-	private $_scenarios;
+	private $_scenarios				= false;
 
 	/**
 	 * Format cells
 	 *
 	 * @var boolean
 	 */
-	private $_formatCells;
+	private $_formatCells			= false;
 
 	/**
 	 * Format columns
 	 *
 	 * @var boolean
 	 */
-	private $_formatColumns;
+	private $_formatColumns			= false;
 
 	/**
 	 * Format rows
 	 *
 	 * @var boolean
 	 */
-	private $_formatRows;
+	private $_formatRows			= false;
 
 	/**
 	 * Insert columns
 	 *
 	 * @var boolean
 	 */
-	private $_insertColumns;
+	private $_insertColumns			= false;
 
 	/**
 	 * Insert rows
 	 *
 	 * @var boolean
 	 */
-	private $_insertRows;
+	private $_insertRows			= false;
 
 	/**
 	 * Insert hyperlinks
 	 *
 	 * @var boolean
 	 */
-	private $_insertHyperlinks;
+	private $_insertHyperlinks		= false;
 
 	/**
 	 * Delete columns
 	 *
 	 * @var boolean
 	 */
-	private $_deleteColumns;
+	private $_deleteColumns			= false;
 
 	/**
 	 * Delete rows
 	 *
 	 * @var boolean
 	 */
-	private $_deleteRows;
+	private $_deleteRows			= false;
 
 	/**
 	 * Select locked cells
 	 *
 	 * @var boolean
 	 */
-	private $_selectLockedCells;
+	private $_selectLockedCells		= false;
 
 	/**
 	 * Sort
 	 *
 	 * @var boolean
 	 */
-	private $_sort;
+	private $_sort					= false;
 
 	/**
 	 * AutoFilter
 	 *
 	 * @var boolean
 	 */
-	private $_autoFilter;
+	private $_autoFilter			= false;
 
 	/**
 	 * Pivot tables
 	 *
 	 * @var boolean
 	 */
-	private $_pivotTables;
+	private $_pivotTables			= false;
 
 	/**
 	 * Select unlocked cells
 	 *
 	 * @var boolean
 	 */
-	private $_selectUnlockedCells;
+	private $_selectUnlockedCells	= false;
 
 	/**
 	 * Password
 	 *
 	 * @var string
 	 */
-	private $_password;
+	private $_password				= '';
 
     /**
      * Create a new PHPExcel_Worksheet_Protection
      */
     public function __construct()
     {
-    	// Initialise values
-    	$this->_sheet					= false;
-    	$this->_objects					= false;
-    	$this->_scenarios				= false;
-    	$this->_formatCells				= false;
-    	$this->_formatColumns			= false;
-    	$this->_formatRows				= false;
-    	$this->_insertColumns			= false;
-    	$this->_insertRows				= false;
-    	$this->_insertHyperlinks		= false;
-    	$this->_deleteColumns			= false;
-    	$this->_deleteRows				= false;
-    	$this->_selectLockedCells		= false;
-    	$this->_sort					= false;
-    	$this->_autoFilter				= false;
-    	$this->_pivotTables				= false;
-    	$this->_selectUnlockedCells		= false;
-    	$this->_password				= '';
     }
 
     /**

Classes/PHPExcel/Worksheet/RowDimension.php

@@ -49,14 +49,14 @@ class PHPExcel_Worksheet_RowDimension
 	 *
 	 * @var double
 	 */
-	private $_rowHeight;
+	private $_rowHeight		= -1;
 
 	/**
 	 * Visible?
 	 *
 	 * @var bool
 	 */
-	private $_visible;
+	private $_visible		= true;
 
 	/**
 	 * Outline level
@@ -70,7 +70,7 @@ class PHPExcel_Worksheet_RowDimension
 	 *
 	 * @var bool
 	 */
-	private $_collapsed;
+	private $_collapsed		= false;
 
 	/**
 	 * Index to cellXf. Null value means row has no explicit cellXf format.
@@ -88,10 +88,6 @@ class PHPExcel_Worksheet_RowDimension
     {
     	// Initialise values
     	$this->_rowIndex		= $pIndex;
-    	$this->_rowHeight		= -1;
-    	$this->_visible			= true;
-    	$this->_outlineLevel	= 0;
-    	$this->_collapsed		= false;
 
 		// set row dimension as unformatted by default
 		$this->_xfIndex = null;

Classes/PHPExcel/Worksheet/SheetView.php

@@ -42,7 +42,7 @@ class PHPExcel_Worksheet_SheetView
 	 *
 	 * @var int
 	 */
-	private $_zoomScale;
+	private $_zoomScale			= 100;
 
 	/**
 	 * ZoomScaleNormal
@@ -51,16 +51,13 @@ class PHPExcel_Worksheet_SheetView
 	 *
 	 * @var int
 	 */
-	private $_zoomScaleNormal;
+	private $_zoomScaleNormal	= 100;
 
     /**
      * Create a new PHPExcel_Worksheet_SheetView
      */
     public function __construct()
     {
-    	// Initialise values
-    	$this->_zoomScale 				= 100;
-    	$this->_zoomScaleNormal 		= 100;
     }
 
 	/**

Classes/PHPExcel/Writer/CSV.php

@@ -46,28 +46,28 @@ class PHPExcel_Writer_CSV implements PHPExcel_Writer_IWriter {
 	 *
 	 * @var string
 	 */
-	private $_delimiter;
+	private $_delimiter	= ',';
 
 	/**
 	 * Enclosure
 	 *
 	 * @var string
 	 */
-	private $_enclosure;
+	private $_enclosure	= '"';
 
 	/**
 	 * Line ending
 	 *
 	 * @var string
 	 */
-	private $_lineEnding;
+	private $_lineEnding	= PHP_EOL;
 
 	/**
 	 * Sheet index to write
 	 *
 	 * @var int
 	 */
-	private $_sheetIndex;
+	private $_sheetIndex	= 0;
 
 	/**
 	 * Pre-calculate formulas
@@ -90,10 +90,6 @@ class PHPExcel_Writer_CSV implements PHPExcel_Writer_IWriter {
 	 */
 	public function __construct(PHPExcel $phpExcel) {
 		$this->_phpExcel	= $phpExcel;
-		$this->_delimiter	= ',';
-		$this->_enclosure	= '"';
-		$this->_lineEnding	= PHP_EOL;
-		$this->_sheetIndex	= 0;
 	}
 
 	/**

Classes/PHPExcel/Writer/Excel5.php

@@ -40,7 +40,7 @@ class PHPExcel_Writer_Excel5 implements PHPExcel_Writer_IWriter
 	 *
 	 * @var boolean
 	 */
-	private $_preCalculateFormulas;
+	private $_preCalculateFormulas	= true;
 
 	/**
 	 * PHPExcel object
@@ -54,28 +54,28 @@ class PHPExcel_Writer_Excel5 implements PHPExcel_Writer_IWriter
 	 *
 	 * @var integer
 	 */
-	private $_BIFF_version;
+	private $_BIFF_version	= 0x0600;
 
 	/**
 	 * Total number of shared strings in workbook
 	 *
 	 * @var int
 	 */
-	private $_str_total;
+	private $_str_total		= 0;
 
 	/**
 	 * Number of unique shared strings in workbook
 	 *
 	 * @var int
 	 */
-	private $_str_unique;
+	private $_str_unique	= 0;
 
 	/**
 	 * Array of unique shared strings in workbook
 	 *
 	 * @var array
 	 */
-	private $_str_table;
+	private $_str_table		= array();
 
 	/**
 	 * Color cache. Mapping between RGB value and color index.
@@ -105,15 +105,9 @@ class PHPExcel_Writer_Excel5 implements PHPExcel_Writer_IWriter
 	 * @param	PHPExcel	$phpExcel	PHPExcel object
 	 */
 	public function __construct(PHPExcel $phpExcel) {
-		$this->_preCalculateFormulas = true;
 		$this->_phpExcel		= $phpExcel;
-		$this->_BIFF_version	= 0x0600;
 
-		$this->_str_total       = 0;
-		$this->_str_unique      = 0;
-		$this->_str_table       = array();
 		$this->_parser			= new PHPExcel_Writer_Excel5_Parser($this->_BIFF_version);
-
 	}
 
 	/**

Classes/PHPExcel/Writer/HTML.php

@@ -46,7 +46,7 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 	 *
 	 * @var int
 	 */
-	private $_sheetIndex;
+	private $_sheetIndex	= 0;
 
 	/**
 	 * Pre-calculate formulas
@@ -95,28 +95,28 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 	 *
 	 * @var boolean
 	 */
-	private $_spansAreCalculated;
+	private $_spansAreCalculated	= false;
 
 	/**
 	 * Excel cells that should not be written as HTML cells
 	 *
 	 * @var array
 	 */
-	private $_isSpannedCell;
+	private $_isSpannedCell	= array();
 
 	/**
 	 * Excel cells that are upper-left corner in a cell merge
 	 *
 	 * @var array
 	 */
-	private $_isBaseCell;
+	private $_isBaseCell	= array();
 
 	/**
 	 * Excel rows that should not be written as HTML rows
 	 *
 	 * @var array
 	 */
-	private $_isSpannedRow;
+	private $_isSpannedRow	= array();
 
 	/**
 	 * Is the current writer creating PDF?
@@ -140,13 +140,6 @@ class PHPExcel_Writer_HTML implements PHPExcel_Writer_IWriter {
 	public function __construct(PHPExcel $phpExcel) {
 		$this->_phpExcel = $phpExcel;
 		$this->_defaultFont = $this->_phpExcel->getDefaultStyle()->getFont();
-		$this->_sheetIndex = 0;
-		$this->_imagesRoot = '.';
-
-		$this->_spansAreCalculated = false;
-		$this->_isSpannedCell = array();
-		$this->_isBaseCell	= array();
-		$this->_isSpannedRow  = array();
 	}
 
 	/**