1. The following program is written in Visual Basic, however it has an error. Rewrite this program to work in PHP to work correctly. Include comments and the program execution output. Option Implicit Public Sub cmdReverse_Click() Dim phrase as String, position As Integer TxtOutput.Text = " " Phrase = txtInput.Text For position = Len(integer) To 1 Step -1 TxtOutput.Text = txtOutput.Text & _ Mid$(phrase, position, 1) Next End Sub