修改vendor

vendor/phpoffice/phpexcel/Classes/PHPExcel/Calculation.php

@@ -2186,7 +2186,7 @@ class PHPExcel_Calculation {
 	 */
 	public static function _unwrapResult($value) {
 		if (is_string($value)) {
-			if ((isset($value{0})) && ($value{0} == '"') && (substr($value,-1) == '"')) {
+			if ((isset($value[0])) && ($value[0] == '"') && (substr($value,-1) == '"')) {
 				return substr($value,1,-1);
 			}
 		//	Convert numeric errors to NaN error
@@ -2302,9 +2302,9 @@ class PHPExcel_Calculation {
 		//	Basic validation that this is indeed a formula
 		//	We return an empty array if not
 		$formula = trim($formula);
-		if ((!isset($formula{0})) || ($formula{0} != '=')) return array();
+		if ((!isset($formula[0])) || ($formula[0] != '=')) return array();
 		$formula = ltrim(substr($formula,1));
-		if (!isset($formula{0})) return array();
+		if (!isset($formula[0])) return array();
 
 		//	Parse the formula and return the token stack
 		return $this->_parseFormula($formula);
@@ -2378,9 +2378,9 @@ class PHPExcel_Calculation {
 		//	Basic validation that this is indeed a formula
 		//	We simply return the cell value if not
 		$formula = trim($formula);
-		if ($formula{0} != '=') return self::_wrapResult($formula);
+		if ($formula[0] != '=') return self::_wrapResult($formula);
 		$formula = ltrim(substr($formula, 1));
-		if (!isset($formula{0})) return self::_wrapResult($formula);
+		if (!isset($formula[0])) return self::_wrapResult($formula);
 
 		$pCellParent = ($pCell !== NULL) ? $pCell->getWorksheet() : NULL;
 		$wsTitle = ($pCellParent !== NULL) ? $pCellParent->getTitle() : "\x00Wrk";
@@ -2390,7 +2390,7 @@ class PHPExcel_Calculation {
 			return $cellValue;
 		}
 
-		if (($wsTitle{0} !== "\x00") && ($this->_cyclicReferenceStack->onStack($wsCellReference))) {
+		if (($wsTitle[0] !== "\x00") && ($this->_cyclicReferenceStack->onStack($wsCellReference))) {
             if ($this->cyclicFormulaCount <= 0) {
                 $this->_cyclicFormulaCell = '';
 				return $this->_raiseFormulaError('Cyclic Reference in Formula');
@@ -2638,7 +2638,7 @@ class PHPExcel_Calculation {
 			} else {
 				if ($value == '') {
 					return 'an empty string';
-				} elseif ($value{0} == '#') {
+				} elseif ($value[0] == '#') {
 					return 'a '.$value.' error';
 				} else {
 					$typeString = 'a string';
@@ -3465,7 +3465,7 @@ class PHPExcel_Calculation {
 //					echo 'Token is a PHPExcel constant: '.$excelConstant.'<br />';
 					$stack->push('Constant Value',self::$_ExcelConstants[$excelConstant]);
 					$this->_debugLog->writeDebugLog('Evaluating Constant ', $excelConstant, ' as ', $this->_showTypeDetails(self::$_ExcelConstants[$excelConstant]));
-				} elseif ((is_numeric($token)) || ($token === NULL) || (is_bool($token)) || ($token == '') || ($token{0} == '"') || ($token{0} == '#')) {
+				} elseif ((is_numeric($token)) || ($token === NULL) || (is_bool($token)) || ($token == '') || ($token[0] == '"') || ($token[0] == '#')) {
 //					echo 'Token is a number, boolean, string, null or an Excel error<br />';
 					$stack->push('Value',$token);
 				// if the token is a named range, push the named range name onto the stack
@@ -3507,11 +3507,11 @@ class PHPExcel_Calculation {
 		if (is_string($operand)) {
 			//	We only need special validations for the operand if it is a string
 			//	Start by stripping off the quotation marks we use to identify true excel string values internally
-			if ($operand > '' && $operand{0} == '"') { $operand = self::_unwrapResult($operand); }
+			if ($operand > '' && $operand[0] == '"') { $operand = self::_unwrapResult($operand); }
 			//	If the string is a numeric value, we treat it as a numeric, so no further testing
 			if (!is_numeric($operand)) {
 				//	If not a numeric, test to see if the value is an Excel error, and so can't be used in normal binary operations
-				if ($operand > '' && $operand{0} == '#') {
+				if ($operand > '' && $operand[0] == '#') {
 					$stack->push('Value', $operand);
 					$this->_debugLog->writeDebugLog('Evaluation Result is ', $this->_showTypeDetails($operand));
 					return FALSE;
@@ -3564,8 +3564,8 @@ class PHPExcel_Calculation {
 		}
 
 		//	Simple validate the two operands if they are string values
-		if (is_string($operand1) && $operand1 > '' && $operand1{0} == '"') { $operand1 = self::_unwrapResult($operand1); }
-		if (is_string($operand2) && $operand2 > '' && $operand2{0} == '"') { $operand2 = self::_unwrapResult($operand2); }
+		if (is_string($operand1) && $operand1 > '' && $operand1[0] == '"') { $operand1 = self::_unwrapResult($operand1); }
+		if (is_string($operand2) && $operand2 > '' && $operand2[0] == '"') { $operand2 = self::_unwrapResult($operand2); }
 
 		// Use case insensitive comparaison if not OpenOffice mode
 		if (PHPExcel_Calculation_Functions::getCompatibilityMode() != PHPExcel_Calculation_Functions::COMPATIBILITY_OPENOFFICE)

vendor/phpoffice/phpexcel/Classes/PHPExcel/Calculation/Engineering.php

@@ -708,7 +708,7 @@ class PHPExcel_Calculation_Engineering {
 		//	Split the input into its Real and Imaginary components
 		$leadingSign = 0;
 		if (strlen($workString) > 0) {
-			$leadingSign = (($workString{0} == '+') || ($workString{0} == '-')) ? 1 : 0;
+			$leadingSign = (($workString[0] == '+') || ($workString[0] == '-')) ? 1 : 0;
 		}
 		$power = '';
 		$realNumber = strtok($workString, '+-');
@@ -747,10 +747,10 @@ class PHPExcel_Calculation_Engineering {
 	 * @return	string		The "cleaned" complex number
 	 */
 	private static function _cleanComplex($complexNumber) {
-		if ($complexNumber{0} == '+') $complexNumber = substr($complexNumber,1);
-		if ($complexNumber{0} == '0') $complexNumber = substr($complexNumber,1);
-		if ($complexNumber{0} == '.') $complexNumber = '0'.$complexNumber;
-		if ($complexNumber{0} == '+') $complexNumber = substr($complexNumber,1);
+		if ($complexNumber[0] == '+') $complexNumber = substr($complexNumber,1);
+		if ($complexNumber[0] == '0') $complexNumber = substr($complexNumber,1);
+		if ($complexNumber[0] == '.') $complexNumber = '0'.$complexNumber;
+		if ($complexNumber[0] == '+') $complexNumber = substr($complexNumber,1);
 		return $complexNumber;
 	}
 

vendor/phpoffice/phpexcel/Classes/PHPExcel/Calculation/FormulaParser.php

@@ -159,7 +159,7 @@ class PHPExcel_Calculation_FormulaParser {
 
 		// Check if the formula has a valid starting =
 		$formulaLength = strlen($this->_formula);
-		if ($formulaLength < 2 || $this->_formula{0} != '=') return;
+		if ($formulaLength < 2 || $this->_formula[0] != '=') return;
 
 		// Helper variables
 		$tokens1	= $tokens2 	= $stack = array();

vendor/phpoffice/phpexcel/Classes/PHPExcel/Calculation/Functions.php

@@ -308,9 +308,9 @@ class PHPExcel_Calculation_Functions {
 
 	public static function _ifCondition($condition) {
 		$condition	= PHPExcel_Calculation_Functions::flattenSingleValue($condition);
-		if (!isset($condition{0}))
+		if (!isset($condition[0]))
 			$condition = '=""';
-		if (!in_array($condition{0},array('>', '<', '='))) {
+		if (!in_array($condition[0],array('>', '<', '='))) {
 			if (!is_numeric($condition)) { $condition = PHPExcel_Calculation::_wrapResult(strtoupper($condition)); }
 			return '='.$condition;
 		} else {
@@ -531,7 +531,7 @@ class PHPExcel_Calculation_Functions {
 				break;
 			case 'string'	:
 				//	Errors
-				if ((strlen($value) > 0) && ($value{0} == '#')) {
+				if ((strlen($value) > 0) && ($value[0] == '#')) {
 					return $value;
 				}
 				break;
@@ -580,7 +580,7 @@ class PHPExcel_Calculation_Functions {
 				return 64;
 		} elseif(is_string($value)) {
 			//	Errors
-			if ((strlen($value) > 0) && ($value{0} == '#')) {
+			if ((strlen($value) > 0) && ($value[0] == '#')) {
 				return 16;
 			}
 			return 2;

vendor/phpoffice/phpexcel/Classes/PHPExcel/Calculation/TextData.php

@@ -48,19 +48,19 @@ class PHPExcel_Calculation_TextData {
 	private static $_invalidChars = Null;
 
 	private static function _uniord($c) {
-		if (ord($c{0}) >=0 && ord($c{0}) <= 127)
-			return ord($c{0});
-		if (ord($c{0}) >= 192 && ord($c{0}) <= 223)
-			return (ord($c{0})-192)*64 + (ord($c{1})-128);
-		if (ord($c{0}) >= 224 && ord($c{0}) <= 239)
-			return (ord($c{0})-224)*4096 + (ord($c{1})-128)*64 + (ord($c{2})-128);
-		if (ord($c{0}) >= 240 && ord($c{0}) <= 247)
-			return (ord($c{0})-240)*262144 + (ord($c{1})-128)*4096 + (ord($c{2})-128)*64 + (ord($c{3})-128);
-		if (ord($c{0}) >= 248 && ord($c{0}) <= 251)
-			return (ord($c{0})-248)*16777216 + (ord($c{1})-128)*262144 + (ord($c{2})-128)*4096 + (ord($c{3})-128)*64 + (ord($c{4})-128);
-		if (ord($c{0}) >= 252 && ord($c{0}) <= 253)
-			return (ord($c{0})-252)*1073741824 + (ord($c{1})-128)*16777216 + (ord($c{2})-128)*262144 + (ord($c{3})-128)*4096 + (ord($c{4})-128)*64 + (ord($c{5})-128);
-		if (ord($c{0}) >= 254 && ord($c{0}) <= 255) //error
+		if (ord($c[0]) >=0 && ord($c[0]) <= 127)
+			return ord($c[0]);
+		if (ord($c[0]) >= 192 && ord($c[0]) <= 223)
+			return (ord($c[0])-192)*64 + (ord($c{1})-128);
+		if (ord($c[0]) >= 224 && ord($c[0]) <= 239)
+			return (ord($c[0])-224)*4096 + (ord($c{1})-128)*64 + (ord($c{2})-128);
+		if (ord($c[0]) >= 240 && ord($c[0]) <= 247)
+			return (ord($c[0])-240)*262144 + (ord($c{1})-128)*4096 + (ord($c{2})-128)*64 + (ord($c{3})-128);
+		if (ord($c[0]) >= 248 && ord($c[0]) <= 251)
+			return (ord($c[0])-248)*16777216 + (ord($c{1})-128)*262144 + (ord($c{2})-128)*4096 + (ord($c{3})-128)*64 + (ord($c{4})-128);
+		if (ord($c[0]) >= 252 && ord($c[0]) <= 253)
+			return (ord($c[0])-252)*1073741824 + (ord($c{1})-128)*16777216 + (ord($c{2})-128)*262144 + (ord($c{3})-128)*4096 + (ord($c{4})-128)*64 + (ord($c{5})-128);
+		if (ord($c[0]) >= 254 && ord($c[0]) <= 255) //error
 			return PHPExcel_Calculation_Functions::VALUE();
 		return 0;
 	}	//	function _uniord()

vendor/phpoffice/phpexcel/Classes/PHPExcel/Cell.php

@@ -801,19 +801,19 @@ class PHPExcel_Cell
 
 		//	We also use the language construct isset() rather than the more costly strlen() function to match the length of $pString
 		//		for improved performance
-		if (isset($pString{0})) {
+		if (isset($pString[0])) {
 			if (!isset($pString{1})) {
 				$_indexCache[$pString] = $_columnLookup[$pString];
 				return $_indexCache[$pString];
-			} elseif(!isset($pString{2})) {
-				$_indexCache[$pString] = $_columnLookup[$pString{0}] * 26 + $_columnLookup[$pString{1}];
+			} elseif(!isset($pString[2])) {
+				$_indexCache[$pString] = $_columnLookup[$pString[0]] * 26 + $_columnLookup[$pString[1]];
 				return $_indexCache[$pString];
 			} elseif(!isset($pString{3})) {
-				$_indexCache[$pString] = $_columnLookup[$pString{0}] * 676 + $_columnLookup[$pString{1}] * 26 + $_columnLookup[$pString{2}];
+				$_indexCache[$pString] = $_columnLookup[$pString[0]] * 676 + $_columnLookup[$pString{1}] * 26 + $_columnLookup[$pString[2]];
 				return $_indexCache[$pString];
 			}
 		}
-		throw new PHPExcel_Exception("Column string index can not be " . ((isset($pString{0})) ? "longer than 3 characters" : "empty"));
+		throw new PHPExcel_Exception("Column string index can not be " . ((isset($pString[0])) ? "longer than 3 characters" : "empty"));
 	}
 
 	/**

vendor/phpoffice/phpexcel/Classes/PHPExcel/Cell/DefaultValueBinder.php

@@ -87,7 +87,7 @@ class PHPExcel_Cell_DefaultValueBinder implements PHPExcel_Cell_IValueBinder
             return PHPExcel_Cell_DataType::TYPE_STRING;
         } elseif ($pValue instanceof PHPExcel_RichText) {
             return PHPExcel_Cell_DataType::TYPE_INLINE;
-        } elseif ($pValue{0} === '=' && strlen($pValue) > 1) {
+        } elseif ($pValue[0] === '=' && strlen($pValue) > 1) {
             return PHPExcel_Cell_DataType::TYPE_FORMULA;
         } elseif (is_bool($pValue)) {
             return PHPExcel_Cell_DataType::TYPE_BOOL;
@@ -95,7 +95,7 @@ class PHPExcel_Cell_DefaultValueBinder implements PHPExcel_Cell_IValueBinder
             return PHPExcel_Cell_DataType::TYPE_NUMERIC;
         } elseif (preg_match('/^[\+\-]?([0-9]+\\.?[0-9]*|[0-9]*\\.?[0-9]+)([Ee][\-\+]?[0-2]?\d{1,3})?$/', $pValue)) {
             $tValue = ltrim($pValue, '+-');
-            if (is_string($pValue) && $tValue{0} === '0' && strlen($tValue) > 1 && $tValue{1} !== '.' ) {
+            if (is_string($pValue) && $tValue[0] === '0' && strlen($tValue) > 1 && $tValue[1] !== '.' ) {
                 return PHPExcel_Cell_DataType::TYPE_STRING;
             } elseif((strpos($pValue, '.') === false) && ($pValue > PHP_INT_MAX)) {
                 return PHPExcel_Cell_DataType::TYPE_STRING;

vendor/phpoffice/phpexcel/Classes/PHPExcel/Reader/Excel2003XML.php

@@ -702,12 +702,12 @@ class PHPExcel_Reader_Excel2003XML extends PHPExcel_Reader_Abstract implements P
 												//	Empty R reference is the current row
 												if ($rowReference == '') $rowReference = $rowID;
 												//	Bracketed R references are relative to the current row
-												if ($rowReference{0} == '[') $rowReference = $rowID + trim($rowReference,'[]');
+												if ($rowReference[0] == '[') $rowReference = $rowID + trim($rowReference,'[]');
 												$columnReference = $cellReference[4][0];
 												//	Empty C reference is the current column
 												if ($columnReference == '') $columnReference = $columnNumber;
 												//	Bracketed C references are relative to the current column
-												if ($columnReference{0} == '[') $columnReference = $columnNumber + trim($columnReference,'[]');
+												if ($columnReference[0] == '[') $columnReference = $columnNumber + trim($columnReference,'[]');
 												$A1CellReference = PHPExcel_Cell::stringFromColumnIndex($columnReference-1).$rowReference;
 													$value = substr_replace($value,$A1CellReference,$cellReference[0][1],strlen($cellReference[0][0]));
 											}

vendor/phpoffice/phpexcel/Classes/PHPExcel/Reader/Excel5.php

@@ -1860,7 +1860,7 @@ class PHPExcel_Reader_Excel5 extends PHPExcel_Reader_Abstract implements PHPExce
 
 		// offset: 0; size: 2; 0 = base 1900, 1 = base 1904
 		PHPExcel_Shared_Date::setExcelCalendar(PHPExcel_Shared_Date::CALENDAR_WINDOWS_1900);
-		if (ord($recordData{0}) == 1) {
+		if (ord($recordData[0]) == 1) {
 			PHPExcel_Shared_Date::setExcelCalendar(PHPExcel_Shared_Date::CALENDAR_MAC_1904);
 		}
 	}
@@ -2334,7 +2334,7 @@ class PHPExcel_Reader_Excel5 extends PHPExcel_Reader_Abstract implements PHPExce
 						$xclrValue = substr($extData, 4, 4); // color value (value based on color type)
 
 						if ($xclfType == 2) {
-							$rgb = sprintf('%02X%02X%02X', ord($xclrValue{0}), ord($xclrValue{1}), ord($xclrValue{2}));
+							$rgb = sprintf('%02X%02X%02X', ord($xclrValue[0]), ord($xclrValue{1}), ord($xclrValue{2}));
 
 							// modify the relevant style property
 							if ( isset($this->_mapCellXfIndex[$ixfe]) ) {
@@ -2350,7 +2350,7 @@ class PHPExcel_Reader_Excel5 extends PHPExcel_Reader_Abstract implements PHPExce
 						$xclrValue = substr($extData, 4, 4); // color value (value based on color type)
 
 						if ($xclfType == 2) {
-							$rgb = sprintf('%02X%02X%02X', ord($xclrValue{0}), ord($xclrValue{1}), ord($xclrValue{2}));
+							$rgb = sprintf('%02X%02X%02X', ord($xclrValue[0]), ord($xclrValue{1}), ord($xclrValue{2}));
 
 							// modify the relevant style property
 							if ( isset($this->_mapCellXfIndex[$ixfe]) ) {
@@ -2366,7 +2366,7 @@ class PHPExcel_Reader_Excel5 extends PHPExcel_Reader_Abstract implements PHPExce
 						$xclrValue = substr($extData, 4, 4); // color value (value based on color type)
 
 						if ($xclfType == 2) {
-							$rgb = sprintf('%02X%02X%02X', ord($xclrValue{0}), ord($xclrValue{1}), ord($xclrValue{2}));
+							$rgb = sprintf('%02X%02X%02X', ord($xclrValue[0]), ord($xclrValue{1}), ord($xclrValue{2}));
 
 							// modify the relevant style property
 							if ( isset($this->_mapCellXfIndex[$ixfe]) ) {
@@ -2382,7 +2382,7 @@ class PHPExcel_Reader_Excel5 extends PHPExcel_Reader_Abstract implements PHPExce
 						$xclrValue = substr($extData, 4, 4); // color value (value based on color type)
 
 						if ($xclfType == 2) {
-							$rgb = sprintf('%02X%02X%02X', ord($xclrValue{0}), ord($xclrValue{1}), ord($xclrValue{2}));
+							$rgb = sprintf('%02X%02X%02X', ord($xclrValue[0]), ord($xclrValue{1}), ord($xclrValue{2}));
 
 							// modify the relevant style property
 							if ( isset($this->_mapCellXfIndex[$ixfe]) ) {
@@ -2398,7 +2398,7 @@ class PHPExcel_Reader_Excel5 extends PHPExcel_Reader_Abstract implements PHPExce
 						$xclrValue = substr($extData, 4, 4); // color value (value based on color type)
 
 						if ($xclfType == 2) {
-							$rgb = sprintf('%02X%02X%02X', ord($xclrValue{0}), ord($xclrValue{1}), ord($xclrValue{2}));
+							$rgb = sprintf('%02X%02X%02X', ord($xclrValue[0]), ord($xclrValue{1}), ord($xclrValue{2}));
 
 							// modify the relevant style property
 							if ( isset($this->_mapCellXfIndex[$ixfe]) ) {
@@ -2414,7 +2414,7 @@ class PHPExcel_Reader_Excel5 extends PHPExcel_Reader_Abstract implements PHPExce
 						$xclrValue = substr($extData, 4, 4); // color value (value based on color type)
 
 						if ($xclfType == 2) {
-							$rgb = sprintf('%02X%02X%02X', ord($xclrValue{0}), ord($xclrValue{1}), ord($xclrValue{2}));
+							$rgb = sprintf('%02X%02X%02X', ord($xclrValue[0]), ord($xclrValue{1}), ord($xclrValue{2}));
 
 							// modify the relevant style property
 							if ( isset($this->_mapCellXfIndex[$ixfe]) ) {
@@ -2430,7 +2430,7 @@ class PHPExcel_Reader_Excel5 extends PHPExcel_Reader_Abstract implements PHPExce
 						$xclrValue = substr($extData, 4, 4); // color value (value based on color type)
 
 						if ($xclfType == 2) {
-							$rgb = sprintf('%02X%02X%02X', ord($xclrValue{0}), ord($xclrValue{1}), ord($xclrValue{2}));
+							$rgb = sprintf('%02X%02X%02X', ord($xclrValue[0]), ord($xclrValue{1}), ord($xclrValue{2}));
 
 							// modify the relevant style property
 							if ( isset($this->_mapCellXfIndex[$ixfe]) ) {
@@ -2446,7 +2446,7 @@ class PHPExcel_Reader_Excel5 extends PHPExcel_Reader_Abstract implements PHPExce
 						$xclrValue = substr($extData, 4, 4); // color value (value based on color type)
 
 						if ($xclfType == 2) {
-							$rgb = sprintf('%02X%02X%02X', ord($xclrValue{0}), ord($xclrValue{1}), ord($xclrValue{2}));
+							$rgb = sprintf('%02X%02X%02X', ord($xclrValue[0]), ord($xclrValue{1}), ord($xclrValue{2}));
 
 							// modify the relevant style property
 							if ( isset($this->_mapCellXfIndex[$ixfe]) ) {
@@ -4392,7 +4392,7 @@ class PHPExcel_Reader_Excel5 extends PHPExcel_Reader_Abstract implements PHPExce
 
 		if (!$this->_readDataOnly) {
 			// offset: 0; size: 1; pane identifier
-			$paneId = ord($recordData{0});
+			$paneId = ord($recordData[0]);
 
 			// offset: 1; size: 2; index to row of the active cell
 			$r = self::_GetInt2d($recordData, 1);
@@ -6504,7 +6504,7 @@ class PHPExcel_Reader_Excel5 extends PHPExcel_Reader_Abstract implements PHPExce
 	private static function _readRGB($rgb)
 	{
 		// offset: 0; size 1; Red component
-		$r = ord($rgb{0});
+		$r = ord($rgb[0]);
 
 		// offset: 1; size: 1; Green component
 		$g = ord($rgb{1});

vendor/phpoffice/phpexcel/Classes/PHPExcel/Reader/SYLK.php

@@ -168,7 +168,7 @@ class PHPExcel_Reader_SYLK extends PHPExcel_Reader_Abstract implements PHPExcel_
 			if ($dataType == 'C') {
 				//  Read cell value data
 				foreach($rowData as $rowDatum) {
-					switch($rowDatum{0}) {
+					switch($rowDatum[0]) {
 						case 'C' :
 						case 'X' :
 							$columnIndex = substr($rowDatum,1) - 1;
@@ -257,7 +257,7 @@ class PHPExcel_Reader_SYLK extends PHPExcel_Reader_Abstract implements PHPExcel_
 			if ($dataType == 'P') {
 				$formatArray = array();
 				foreach($rowData as $rowDatum) {
-					switch($rowDatum{0}) {
+					switch($rowDatum[0]) {
 						case 'P' :	$formatArray['numberformat']['code'] = str_replace($fromFormats,$toFormats,substr($rowDatum,1));
 									break;
 						case 'E' :
@@ -291,7 +291,7 @@ class PHPExcel_Reader_SYLK extends PHPExcel_Reader_Abstract implements PHPExcel_
 				$hasCalculatedValue = false;
 				$cellData = $cellDataFormula = '';
 				foreach($rowData as $rowDatum) {
-					switch($rowDatum{0}) {
+					switch($rowDatum[0]) {
 						case 'C' :
 						case 'X' :	$column = substr($rowDatum,1);
 									break;
@@ -319,12 +319,12 @@ class PHPExcel_Reader_SYLK extends PHPExcel_Reader_Abstract implements PHPExcel_
 												//	Empty R reference is the current row
 												if ($rowReference == '') $rowReference = $row;
 												//	Bracketed R references are relative to the current row
-												if ($rowReference{0} == '[') $rowReference = $row + trim($rowReference,'[]');
+												if ($rowReference[0] == '[') $rowReference = $row + trim($rowReference,'[]');
 												$columnReference = $cellReference[4][0];
 												//	Empty C reference is the current column
 												if ($columnReference == '') $columnReference = $column;
 												//	Bracketed C references are relative to the current column
-												if ($columnReference{0} == '[') $columnReference = $column + trim($columnReference,'[]');
+												if ($columnReference[0] == '[') $columnReference = $column + trim($columnReference,'[]');
 												$A1CellReference = PHPExcel_Cell::stringFromColumnIndex($columnReference-1).$rowReference;
 
 												$value = substr_replace($value,$A1CellReference,$cellReference[0][1],strlen($cellReference[0][0]));
@@ -352,7 +352,7 @@ class PHPExcel_Reader_SYLK extends PHPExcel_Reader_Abstract implements PHPExcel_
 				$formatStyle = $columnWidth = $styleSettings = '';
 				$styleData = array();
 				foreach($rowData as $rowDatum) {
-					switch($rowDatum{0}) {
+					switch($rowDatum[0]) {
 						case 'C' :
 						case 'X' :	$column = substr($rowDatum,1);
 									break;
@@ -408,7 +408,7 @@ class PHPExcel_Reader_SYLK extends PHPExcel_Reader_Abstract implements PHPExcel_
 				}
 			} else {
 				foreach($rowData as $rowDatum) {
-					switch($rowDatum{0}) {
+					switch($rowDatum[0]) {
 						case 'C' :
 						case 'X' :	$column = substr($rowDatum,1);
 									break;

vendor/phpoffice/phpexcel/Classes/PHPExcel/ReferenceHelper.php

@@ -889,9 +889,9 @@ class PHPExcel_ReferenceHelper
 			list($newColumn, $newRow) = PHPExcel_Cell::coordinateFromString( $pCellReference );
 
 			// Verify which parts should be updated
-			$updateColumn = (($newColumn{0} != '$') && ($beforeColumn{0} != '$') &&
+			$updateColumn = (($newColumn[0] != '$') && ($beforeColumn[0] != '$') &&
 							 PHPExcel_Cell::columnIndexFromString($newColumn) >= PHPExcel_Cell::columnIndexFromString($beforeColumn));
-			$updateRow = (($newRow{0} != '$') && ($beforeRow{0} != '$') &&
+			$updateRow = (($newRow[0] != '$') && ($beforeRow[0] != '$') &&
 						  $newRow >= $beforeRow);
 
 			// Create new column reference

vendor/phpoffice/phpexcel/Classes/PHPExcel/Shared/String.php

@@ -526,15 +526,15 @@ class PHPExcel_Shared_String
 	 */
 	public static function utf16_decode($str, $bom_be = TRUE) {
 		if( strlen($str) < 2 ) return $str;
-		$c0 = ord($str{0});
-		$c1 = ord($str{1});
+		$c0 = ord($str[0]);
+		$c1 = ord($str[1]);
 		if( $c0 == 0xfe && $c1 == 0xff ) { $str = substr($str,2); }
 		elseif( $c0 == 0xff && $c1 == 0xfe ) { $str = substr($str,2); $bom_be = false; }
 		$len = strlen($str);
 		$newstr = '';
 		for($i=0;$i<$len;$i+=2) {
-			if( $bom_be ) { $val = ord($str{$i})   << 4; $val += ord($str{$i+1}); }
-			else {        $val = ord($str{$i+1}) << 4; $val += ord($str{$i}); }
+			if( $bom_be ) { $val = ord($str[$i])   << 4; $val += ord($str[$i+1]); }
+			else {        $val = ord($str[$i+1]) << 4; $val += ord($str[$i]); }
 			$newstr .= ($val == 0x228) ? "\n" : chr($val);
 		}
 		return $newstr;

vendor/phpoffice/phpexcel/Classes/PHPExcel/Shared/ZipStreamWrapper.php

@@ -81,7 +81,7 @@ class PHPExcel_Shared_ZipStreamWrapper {
      */
     public function stream_open($path, $mode, $options, &$opened_path) {
         // Check for mode
-        if ($mode{0} != 'r') {
+        if ($mode[0] != 'r') {
             throw new PHPExcel_Reader_Exception('Mode ' . $mode . ' is not supported. Only read mode is supported.');
         }
 

vendor/phpoffice/phpexcel/Classes/PHPExcel/Worksheet/AutoFilter.php

@@ -730,7 +730,7 @@ class PHPExcel_Worksheet_AutoFilter
 							);
 						} else {
 							//	Date based
-							if ($dynamicRuleType{0} == 'M' || $dynamicRuleType{0} == 'Q') {
+							if ($dynamicRuleType[0] == 'M' || $dynamicRuleType[0] == 'Q') {
 								//	Month or Quarter
 								sscanf($dynamicRuleType,'%[A-Z]%d', $periodType, $period);
 								if ($periodType == 'M') {

vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5/Workbook.php

@@ -675,7 +675,7 @@ class PHPExcel_Writer_Excel5_Workbook extends PHPExcel_Writer_Excel5_BIFFwriter
 					$formulaData = $this->_parser->toReversePolish();
 
 					// make sure tRef3d is of type tRef3dR (0x3A)
-					if (isset($formulaData{0}) and ($formulaData{0} == "\x7A" or $formulaData{0} == "\x5A")) {
+					if (isset($formulaData[0]) and ($formulaData[0] == "\x7A" or $formulaData[0] == "\x5A")) {
 						$formulaData = "\x3A" . substr($formulaData, 1);
 					}
 

vendor/phpoffice/phpexcel/Classes/PHPExcel/Writer/Excel5/Worksheet.php

@@ -904,7 +904,7 @@ class PHPExcel_Writer_Excel5_Worksheet extends PHPExcel_Writer_Excel5_BIFFwriter
 		$unknown	= 0x0000;			// Must be zero
 
 		// Strip the '=' or '@' sign at the beginning of the formula string
-		if ($formula{0} == '=') {
+		if ($formula[0] == '=') {
 			$formula = substr($formula,1);
 		} else {
 			// Error handling

vendor/phpoffice/phpexcel/unitTests/custom/complexAssert.php

@@ -9,7 +9,7 @@ class complexAssert {
 
     public function assertComplexEquals($expected, $actual, $delta = 0)
     {
-		if ($expected{0} === '#') {
+		if ($expected[0] === '#') {
 			//	Expecting an error, so we do a straight string comparison
 			if ($expected === $actual) {
 				return TRUE;

vendor/phpoffice/phpexcel/unitTests/testDataFileIterator.php

@@ -51,7 +51,7 @@ class testDataFileIterator implements Iterator
         do {
             //    Only take lines that contain test data and that aren't commented out
             $testDataRow = trim(fgets($this->file));
-        } while (($testDataRow > '') && ($testDataRow{0} === '#'));
+        } while (($testDataRow > '') && ($testDataRow[0] === '#'));
 
         //    Discard any comments at the end of the line
         list($testData) = explode('//',$testDataRow);