diff --git a/classes/context/Context.class.php b/classes/context/Context.class.php
index 013b33eee..f29ad60ed 100644
--- a/classes/context/Context.class.php
+++ b/classes/context/Context.class.php
@@ -2100,7 +2100,7 @@ class Context
 	 */
 	public static function normalizeFilePath($file)
 	{
-		if($file{0} != '/' && $file{0} != '.' && strpos($file, '://') === FALSE)
+		if($file[0] != '/' && $file[0] != '.' && strpos($file, '://') === FALSE)
 		{
 			$file = './' . $file;
 		}
diff --git a/classes/frontendfile/FrontEndFileHandler.class.php b/classes/frontendfile/FrontEndFileHandler.class.php
index e21fb76c7..15f8b87b4 100644
--- a/classes/frontendfile/FrontEndFileHandler.class.php
+++ b/classes/frontendfile/FrontEndFileHandler.class.php
@@ -92,27 +92,27 @@ class FrontEndFileHandler extends Handler
 		if(!is_array($args))
 		{
 			$args = array($args);
-		}
-		
-		// Replace obsolete paths with current paths.
-		$args[0] = preg_replace(array_keys(HTMLDisplayHandler::$replacements), array_values(HTMLDisplayHandler::$replacements), $args[0]);
-		$isCommon = preg_match(HTMLDisplayHandler::$reservedCSS, $args[0]) || preg_match(HTMLDisplayHandler::$reservedJS, $args[0]);
-		
-		// Prevent overwriting common scripts.
-		if(intval($args[3]) > -1500000000)
+		}
+		
+		// Replace obsolete paths with current paths.
+		$args[0] = preg_replace(array_keys(HTMLDisplayHandler::$replacements), array_values(HTMLDisplayHandler::$replacements), $args[0]);
+		$isCommon = preg_match(HTMLDisplayHandler::$reservedCSS, $args[0]) || preg_match(HTMLDisplayHandler::$reservedJS, $args[0]);
+		
+		// Prevent overwriting common scripts.
+		if(intval($args[3]) > -1500000000)
 		{
 			if($isCommon)
 			{
 				return;
-			}
-			foreach(HTMLDisplayHandler::$blockedScripts as $regexp)
-			{
-				if(preg_match($regexp, $args[0]))
-				{
-					return;
-				}
-			}
-		}
+			}
+			foreach(HTMLDisplayHandler::$blockedScripts as $regexp)
+			{
+				if(preg_match($regexp, $args[0]))
+				{
+					return;
+				}
+			}
+		}
 		
 		$file = $this->getFileInfo($args[0], $args[2], $args[1], $args[4], $isCommon);
 		$file->index = (int)$args[3];
@@ -170,17 +170,17 @@ class FrontEndFileHandler extends Handler
 			return $existsInfo[$existsKey];
 		}
 		
-		$pathInfo = pathinfo($fileName);
+		$pathInfo = pathinfo($fileName);
 		
 		$file = new stdClass();
 		$file->fileName = $pathInfo['basename'];
 		$file->filePath = $this->_getAbsFileUrl($pathInfo['dirname']);
 		$file->fileRealPath = FileHandler::getRealPath($pathInfo['dirname']);
 		$file->fileFullPath = $file->fileRealPath . '/' . $pathInfo['basename'];
-		$file->fileExtension = strtolower($pathInfo['extension']);
-		if (($pos = strpos($file->fileExtension, '?')) !== false)
-		{
-			$file->fileExtension = substr($file->fileExtension, 0, $pos);
+		$file->fileExtension = strtolower($pathInfo['extension']);
+		if (($pos = strpos($file->fileExtension, '?')) !== false)
+		{
+			$file->fileExtension = substr($file->fileExtension, 0, $pos);
 		}
 		if (preg_match('/^(.+)\.min$/', $pathInfo['filename'], $matches))
 		{
@@ -192,10 +192,10 @@ class FrontEndFileHandler extends Handler
 			$file->fileNameNoExt = $pathInfo['filename'];
 			$file->isMinified = false;
 		}
-		$file->isExternalURL = preg_match('@^(https?:)?//@i', $file->filePath) ? true : false;
-		if ($file->isExternalURL && !$file->fileExtension)
-		{
-			$file->fileExtension = preg_match('/[\.\/](css|js)\b/', $fileName, $matches) ? $matches[1] : null;
+		$file->isExternalURL = preg_match('@^(https?:)?//@i', $file->filePath) ? true : false;
+		if ($file->isExternalURL && !$file->fileExtension)
+		{
+			$file->fileExtension = preg_match('/[\.\/](css|js)\b/', $fileName, $matches) ? $matches[1] : null;
 		}
 		$file->isCachedScript = !$file->isExternalURL && strpos($file->filePath, 'files/cache/') !== false;
 		$file->isCommon = $isCommon;
@@ -213,7 +213,7 @@ class FrontEndFileHandler extends Handler
 				$file->fileFullPath = $file->fileRealPath . '/' . $file->fileNameNoExt . '.' . $file->fileExtension;
 			}
 		}
-		
+		
 		// Do not minify common JS plugins
 		if (strpos($file->filePath, 'common/js/plugins') !== false)
 		{
@@ -288,12 +288,12 @@ class FrontEndFileHandler extends Handler
 		if (!file_exists($file->fileFullPath))
 		{
 			return;
-		}
+		}
 		
-		$default_font_config = Context::get('default_font_config') ?: getController('editor')->default_font_config;
-		$file->vars['enable_xe_btn_styles'] = (defined('DISABLE_XE_BTN_STYLES') && DISABLE_XE_BTN_STYLES) ? 'false' : 'true';
-		$file->vars['enable_xe_msg_styles'] = (defined('DISABLE_XE_MSG_STYLES') && DISABLE_XE_MSG_STYLES) ? 'false' : 'true';
-		$file->vars = array_merge($file->vars, $default_font_config);
+		$default_font_config = Context::get('default_font_config') ?: getController('editor')->default_font_config;
+		$file->vars['enable_xe_btn_styles'] = (defined('DISABLE_XE_BTN_STYLES') && DISABLE_XE_BTN_STYLES) ? 'false' : 'true';
+		$file->vars['enable_xe_msg_styles'] = (defined('DISABLE_XE_MSG_STYLES') && DISABLE_XE_MSG_STYLES) ? 'false' : 'true';
+		$file->vars = array_merge($file->vars, $default_font_config);
 		if ($file->fileExtension === 'less')
 		{
 			$file->vars = array_map(function($str) {
@@ -631,7 +631,7 @@ class FrontEndFileHandler extends Handler
 	 */
 	protected function _normalizeFilePath($path)
 	{
-		if(strpos($path, '://') === FALSE && $path{0} != '/' && $path{0} != '.')
+		if(strpos($path, '://') === FALSE && $path[0] != '/' && $path[0] != '.')
 		{
 			$path = './' . $path;
 		}
diff --git a/classes/template/TemplateHandler.class.php b/classes/template/TemplateHandler.class.php
index ed05eeeec..0ca8531e5 100644
--- a/classes/template/TemplateHandler.class.php
+++ b/classes/template/TemplateHandler.class.php
@@ -484,7 +484,7 @@ class TemplateHandler
 				// find closing tag
 				$close_php = '<?php ' . str_repeat('}', $closing) . ' ?>';
 				//  self closing tag
-				if($node{1} == '!' || substr($node, -2, 1) == '/' || isset($self_closing[$tag]))
+				if($node[1] == '!' || substr($node, -2, 1) == '/' || isset($self_closing[$tag]))
 				{
 					$nodes[$idx + 1] = $close_php . $nodes[$idx + 1];
 				}
@@ -545,7 +545,7 @@ class TemplateHandler
 				return $m[0];
 			}
 			
-			if($m[1]{0} == '@')
+			if($m[1][0] == '@')
 			{
 				$m[1] = self::_replaceVar(substr($m[1], 1));
 				return "<?php {$m[1]} ?>";
@@ -866,7 +866,7 @@ class TemplateHandler
 			}
 			if($mm[1])
 			{
-				if($mm[1]{0} == 'e')
+				if($mm[1][0] == 'e')
 				{
 					return '<?php } ?>' . $m[9];
 				}
@@ -931,7 +931,7 @@ class TemplateHandler
 		$_path = $path;
 
 		$fileDir = strtr(realpath($this->path), '\\', '/');
-		if($path{0} != '/')
+		if($path[0] != '/')
 		{
 			$path = strtr(realpath($fileDir . '/' . $path), '\\', '/');
 		}
diff --git a/classes/validator/Validator.class.php b/classes/validator/Validator.class.php
index aded04a4e..9b6a3768a 100644
--- a/classes/validator/Validator.class.php
+++ b/classes/validator/Validator.class.php
@@ -279,7 +279,7 @@ class Validator
 		foreach($this->_filters as $key => $filter)
 		{
 			$names = array();
-			if($key{0} == '^')
+			if($key[0] == '^')
 			{
 				$names = preg_grep('/^' . preg_quote(substr($key, 1)) . '/', $field_names);
 			}