diff --git a/variable-handling/is_array/is_array.go b/variable-handling/is_array/is_array.go
new file mode 100644
index 0000000..5f507dd
--- /dev/null
+++ b/variable-handling/is_array/is_array.go
@@ -0,0 +1,10 @@
+package is_array
+
+import (
+	"reflect"
+)
+
+func Do(v interface{}) bool {
+	vType := reflect.TypeOf(v).Kind()
+	return vType == reflect.Array || vType == reflect.Slice || vType == reflect.Map
+}
\ No newline at end of file
diff --git a/variable-handling/is_array/is_array_test.go b/variable-handling/is_array/is_array_test.go
new file mode 100644
index 0000000..60dfea6
--- /dev/null
+++ b/variable-handling/is_array/is_array_test.go
@@ -0,0 +1,209 @@
+package is_array
+
+import (
+	"reflect"
+	"testing"
+)
+
+func TestDo(t *testing.T) {
+	type args struct {
+		v interface{}
+	}
+	type Ts struct {}
+	var ts Ts
+
+	tests := []struct {
+		name string
+		args args
+		want bool
+	}{
+		// reference: https://github.com/php/php-src/blob/5b01c4863fe9e4bc2702b2bbf66d292d23001a18/ext/standard/tests/general_functions/is_array.phpt
+		{
+			name: "case-1:array-true",
+			args: args{
+				v: [1]string{""},
+			},
+			want: true,
+		},
+		{
+			name: "case-2:array-true",
+			args: args{
+				v: [2]string{"string", "test"},
+			},
+			want: true,
+		},
+		{
+			name: "case-3:array-true",
+			args: args{
+				v: [1]bool{true},
+			},
+			want: true,
+		},
+		{
+			name: "case-4:array-true",
+			args: args{
+				v: [2]float32{10.5, 5.6},
+			},
+			want: true,
+		},
+		{
+			name: "case-5:array-true",
+			args: args{
+				v: [][]int{},
+			},
+			want: true,
+		},
+		{
+			name: "case-6:array-true",
+			args: args{
+				v: [2][3]string{
+					{"a", "b", "c"},
+					{"d", "e", "f"},
+				},
+			},
+			want: true,
+		},
+		{
+			name: "case-7:slice-true",
+			args: args{
+				v: make([]int, 1),
+			},
+			want: true,
+		},
+		{
+			name: "case-8:slice-true",
+			args: args{
+				v: [...]float32{},
+			},
+			want: true,
+		},
+		{
+			name: "case-9:integers-false",
+			args: args{
+				v: -5322,
+			},
+			want: false,
+		},
+		{
+			name: "case-10:integers-false",
+			args: args{
+				v: 0x55F,
+			},
+			want: false,
+		},
+		{
+			name: "case-11:integers-false",
+			args: args{
+				v: -0xCCF,
+			},
+			want: false,
+		},
+		{
+			name: "case-12:string-false",
+			args: args{
+				v: "",
+			},
+			want: false,
+		},
+		{
+			name: "case-13:string-false",
+			args: args{
+				v: "string",
+			},
+			want: false,
+		},
+		{
+			name: "case-14:string-false",
+			args: args{
+				v: ``,
+			},
+			want: false,
+		},
+		{
+			name: "case-15:float-false",
+			args: args{
+				v: 10.0000000000000000005,
+			},
+			want: false,
+		},
+		{
+			name: "case-16:float-false",
+			args: args{
+				v: .5e6,
+			},
+			want: false,
+		},
+		{
+			name: "case-17:float-false",
+			args: args{
+				v: -.5E7,
+			},
+			want: false,
+		},
+		{
+			name: "case-18:float-false",
+			args: args{
+				v: .5E+8,
+			},
+			want: false,
+		},
+		{
+			name: "case-19:float-false",
+			args: args{
+				v: -.5e+90,
+			},
+			want: false,
+		},
+		{
+			name: "case-20:float-false",
+			args: args{
+				v: 1e5,
+			},
+			want: false,
+		},
+		{
+			name: "case-21:map-true",
+			args: args{
+				v: map[string]int{"nasa": 1},
+			},
+			want: true,
+		},
+		{
+			name: "case-22:bool-false",
+			args: args{
+				v: true,
+			},
+			want: false,
+		},
+		{
+			name: "case-23:bool-false",
+			args: args{
+				v: false,
+			},
+			want: false,
+		},
+		{
+			name: "case-24:chan-false",
+			args: args{
+				v: make(chan string),
+			},
+			want: false,
+		},
+		{
+			name: "case-25:struct-false",
+			args: args{
+				v: ts,
+			},
+			want: false,
+		},
+
+
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := Do(tt.args.v); !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("Do() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
\ No newline at end of file