diff --git a/ISSUE_TEMPLATE.md b/ISSUE_TEMPLATE.md
index 99de64f..8b13789 100644
--- a/ISSUE_TEMPLATE.md
+++ b/ISSUE_TEMPLATE.md
@@ -1,9 +1 @@
-Issue Description
 
-```php
-// PHP code trying to parse
-```
-
-```
-// console output
-```
diff --git a/printer/pretty_printer.go b/printer/pretty_printer.go
index 9fd17e6..314fcd3 100644
--- a/printer/pretty_printer.go
+++ b/printer/pretty_printer.go
@@ -551,10 +551,18 @@ func (p *PrettyPrinter) printScalarEncapsedStringPart(n node.Node) {
 }
 
 func (p *PrettyPrinter) printScalarEncapsed(n node.Node) {
+	nn := n.(*scalar.Encapsed)
 	io.WriteString(p.w, "\"")
 
-	for _, nn := range n.(*scalar.Encapsed).Parts {
-		p.Print(nn)
+	for _, part := range nn.Parts {
+		switch part.(type) {
+		case *scalar.EncapsedStringPart:
+			p.Print(part)
+		default:
+			io.WriteString(p.w, "{")
+			p.Print(part)
+			io.WriteString(p.w, "}")
+		}
 	}
 
 	io.WriteString(p.w, "\"")
@@ -567,8 +575,15 @@ func (p *PrettyPrinter) printScalarHeredoc(n node.Node) {
 	io.WriteString(p.w, nn.Label)
 	io.WriteString(p.w, "\n")
 
-	for _, nn := range nn.Parts {
-		p.Print(nn)
+	for _, part := range nn.Parts {
+		switch part.(type) {
+		case *scalar.EncapsedStringPart:
+			p.Print(part)
+		default:
+			io.WriteString(p.w, "{")
+			p.Print(part)
+			io.WriteString(p.w, "}")
+		}
 	}
 
 	io.WriteString(p.w, strings.Trim(nn.Label, "\"'"))
@@ -1232,7 +1247,14 @@ func (p *PrettyPrinter) printExprShellExec(n node.Node) {
 
 	io.WriteString(p.w, "`")
 	for _, part := range nn.Parts {
-		p.Print(part)
+		switch part.(type) {
+		case *scalar.EncapsedStringPart:
+			p.Print(part)
+		default:
+			io.WriteString(p.w, "{")
+			p.Print(part)
+			io.WriteString(p.w, "}")
+		}
 	}
 	io.WriteString(p.w, "`")
 }
diff --git a/printer/pretty_printer_test.go b/printer/pretty_printer_test.go
index 5d2fd13..14f9880 100644
--- a/printer/pretty_printer_test.go
+++ b/printer/pretty_printer_test.go
@@ -346,7 +346,7 @@ func TestPrintScalarEncapsed(t *testing.T) {
 		},
 	})
 
-	if o.String() != `"hello $var world"` {
+	if o.String() != `"hello {$var} world"` {
 		t.Errorf("TestPrintScalarEncapsed is failed\n")
 	}
 }
@@ -365,7 +365,7 @@ func TestPrintScalarHeredoc(t *testing.T) {
 	})
 
 	expected := `<<<LBL
-hello $var world
+hello {$var} world
 LBL`
 	actual := o.String()
 
@@ -1844,7 +1844,7 @@ func TestPrintShellExec(t *testing.T) {
 		},
 	})
 
-	expected := "`hello $world!`"
+	expected := "`hello {$world}!`"
 	actual := o.String()
 
 	if expected != actual {
diff --git a/printer/printer.go b/printer/printer.go
index e9f51f8..1bebb3b 100644
--- a/printer/printer.go
+++ b/printer/printer.go
@@ -629,7 +629,15 @@ func (p *Printer) printScalarEncapsed(n node.Node) {
 	io.WriteString(p.w, "\"")
 
 	for _, part := range nn.Parts {
-		p.Print(part)
+		switch part.(type) {
+		case *scalar.EncapsedStringPart:
+			p.Print(part)
+		default:
+			io.WriteString(p.w, "{")
+			p.Print(part)
+			p.printMeta(nn, meta.CloseCurlyBracesToken)
+			io.WriteString(p.w, "}")
+		}
 	}
 
 	io.WriteString(p.w, "\"")
@@ -647,8 +655,16 @@ func (p *Printer) printScalarHeredoc(n node.Node) {
 	io.WriteString(p.w, nn.Label)
 	io.WriteString(p.w, "\n")
 
-	for _, nn := range nn.Parts {
-		p.Print(nn)
+	for _, part := range nn.Parts {
+		switch part.(type) {
+		case *scalar.EncapsedStringPart:
+			p.Print(part)
+		default:
+			io.WriteString(p.w, "{")
+			p.Print(part)
+			p.printMeta(nn, meta.CloseCurlyBracesToken)
+			io.WriteString(p.w, "}")
+		}
 	}
 
 	io.WriteString(p.w, strings.Trim(nn.Label, "\"'"))
@@ -1681,7 +1697,15 @@ func (p *Printer) printExprShellExec(n node.Node) {
 	p.printMeta(nn, meta.BackquoteToken)
 	io.WriteString(p.w, "`")
 	for _, part := range nn.Parts {
-		p.Print(part)
+		switch part.(type) {
+		case *scalar.EncapsedStringPart:
+			p.Print(part)
+		default:
+			io.WriteString(p.w, "{")
+			p.Print(part)
+			p.printMeta(nn, meta.CloseCurlyBracesToken)
+			io.WriteString(p.w, "}")
+		}
 	}
 	io.WriteString(p.w, "`")
 
diff --git a/printer/printer_parsed_test.go b/printer/printer_parsed_test.go
index cb85611..71c5777 100644
--- a/printer/printer_parsed_test.go
+++ b/printer/printer_parsed_test.go
@@ -246,7 +246,7 @@ func TestParseAndPrintPropertyFetchPrint(t *testing.T) {
 func TestParseAndPrintForeachReferenceShellExec(t *testing.T) {
 	src := `<?php
 	foreach ( $a as $k => & $v ) {
-		` + "` $v cmd `" + ` ;
+		` + "` {$v} cmd `" + ` ;
 	}`
 
 	actual := print(parse(src))
@@ -714,7 +714,7 @@ func TestParseAndPrintScalar(t *testing.T) {
 	.2 ;
 	0.2 ;
 	'Hello' ;
-	"Hello $world";
+	"Hello {$world}";
 	`
 
 	actual := print(parse(src))
diff --git a/printer/printer_test.go b/printer/printer_test.go
index 5ec09ac..ead4a44 100644
--- a/printer/printer_test.go
+++ b/printer/printer_test.go
@@ -555,7 +555,7 @@ func TestPrinterPrintScalarEncapsed(t *testing.T) {
 		},
 	})
 
-	if o.String() != ` "hello $var world"` {
+	if o.String() != ` "hello {$var} world"` {
 		t.Errorf("TestPrintScalarEncapsed is failed\n")
 	}
 }
@@ -580,7 +580,7 @@ func TestPrinterPrintScalarHeredoc(t *testing.T) {
 	})
 
 	expected := ` <<<LBL
-hello $var world
+hello {$var} world
 LBL`
 	actual := o.String()
 
@@ -2764,7 +2764,7 @@ func TestPrinterPrintShellExec(t *testing.T) {
 		},
 	})
 
-	expected := " `hello $world!`"
+	expected := " `hello {$world}!`"
 	actual := o.String()
 
 	if expected != actual {