Fixed curly braces in array to []

Author: Samuel Akopyan

framework/vendors/tcpdf/include/tcpdf_filters.php

@@ -279,7 +279,7 @@ public static function decodeFilterLZWDecode($data) {
 		// convert string to binary string
 		$bitstring = '';
 		for ($i = 0; $i < $data_length; ++$i) {
-			$bitstring .= sprintf('%08b', ord($data{$i}));
+			$bitstring .= sprintf('%08b', ord($data[$i]));
 		}
 		// get the number of bits
 		$data_length = strlen($bitstring);
@@ -376,7 +376,7 @@ public static function decodeFilterRunLengthDecode($data) {
 		$i = 0;
 		while($i < $data_length) {
 			// get current byte value
-			$byte = ord($data{$i});
+			$byte = ord($data[$i]);
 			if ($byte == 128) {
 				// a length value of 128 denote EOD
 				break;

framework/vendors/tcpdf/include/tcpdf_images.php

@@ -315,7 +315,7 @@ public static function _parsepng($file) {
 					if ($n > 0) {
 						$trns = array();
 						for ($i = 0; $i < $n; ++ $i) {
-							$trns[] = ord($t{$i});
+							$trns[] = ord($t[$i]);
 						}
 					}
 				}

framework/vendors/tcpdf/tcpdf_parser.php

@@ -531,10 +531,10 @@ protected function getRawObject($offset=0) {
 				if ($char == '(') {
 					$open_bracket = 1;
 					while ($open_bracket > 0) {
-						if (!isset($this->pdfdata{$strpos})) {
+						if (!isset($this->pdfdata[$strpos])) {
 							break;
 						}
-						$ch = $this->pdfdata{$strpos};
+						$ch = $this->pdfdata[$strpos];
 						switch ($ch) {
 							case '\\': { // REVERSE SOLIDUS (5Ch) (Backslash)
 								// skip next character