diff --git a/lib/PhpParser/PrettyPrinter/Standard.php b/lib/PhpParser/PrettyPrinter/Standard.php
index 1aac459..0c0e6f1 100644
--- a/lib/PhpParser/PrettyPrinter/Standard.php
+++ b/lib/PhpParser/PrettyPrinter/Standard.php
@@ -849,9 +849,20 @@ class Standard extends PrettyPrinterAbstract
     protected function escapeString($string, $quote) {
         if (null === $quote) {
             // For doc strings, don't escape newlines
-            return addcslashes($string, "\t\f\v$\\");
+            $escaped = addcslashes($string, "\t\f\v$\\");
+        } else {
+            $escaped = addcslashes($string, "\n\r\t\f\v$" . $quote . "\\");
         }
-        return addcslashes($string, "\n\r\t\f\v$" . $quote . "\\");
+
+        // Escape other control characters
+        return preg_replace_callback('/([\0-\10\16-\37])(?=([0-7]?))/', function ($matches) {
+            $oct = decoct(ord($matches[1]));
+            if ($matches[2] !== '') {
+                // If there is a trailing digit, use the full three character form
+                return '\\' . str_pad($oct, 3, '0', STR_PAD_LEFT);
+            }
+            return '\\' . $oct;
+        }, $escaped);
     }
 
     protected function containsEndLabel($string, $label, $atStart = true, $atEnd = true) {
diff --git a/test/code/prettyPrinter/expr/stringEscaping.test b/test/code/prettyPrinter/expr/stringEscaping.test
new file mode 100644
index 0000000..02877ad
--- /dev/null
+++ b/test/code/prettyPrinter/expr/stringEscaping.test
@@ -0,0 +1,23 @@
+Escape sequences in double-quoted strings
+-----
+<?php
+"\n\r\t\f\v\$\"\\";
+"@@{ implode(range("\0", "\37")) }@@";
+"\0000\0001";
+
+<<<DOC
+\n\r\t\f\v\$\"\\
+@@{ implode(range("\0", "\37")) }@@
+\0000\0001
+DOC;
+
+-----
+"\n\r\t\f\v\$\"\\";
+"\0\1\2\3\4\5\6\7\10\t\n\v\f\r\16\17\20\21\22\23\24\25\26\27\30\31\32\33\34\35\36\37";
+"\0000\0001";
+<<<DOC
+@@{ "\n\r" }@@\t\f\v\$\\"\\
+\0\1\2\3\4\5\6\7\10\t@@{ "\n" }@@\v\f@@{ "\r" }@@\16\17\20\21\22\23\24\25\26\27\30\31\32\33\34\35\36\37
+\0000\0001
+DOC
+;
\ No newline at end of file