Example of commented code

Cue.vb

///////////////////////////////////////
// Change state of water for toilet
//
// Parameter `State`:
// - 0: Open
// - 1: Close
// - 2: Toggle? Or reverify state?
///////////////////////////////////////
Global Function SetWaterWC (State As Long)
	WaterProcesBusy[2].Lock()	
	Select State
        Case 0
            Cell01_Relay_EnableWater_WC.Open()
            Cell01_Relay_EnableWater_WC_FB.Open()

        Case 1
            Cell01_Relay_EnableWater_WC.Close()
            Cell01_Relay_EnableWater_WC_FB.Close()

        Case 2
            If Cell01_Relay_EnableWater_WC.IsClosed() Then
                Cell01_Relay_EnableWater_WC.Close()
                Cell01_Relay_EnableWater_WC_FB.Close()

            Else
                Cell01_Relay_EnableWater_WC.Open()
                Cell01_Relay_EnableWater_WC_FB.Open()

            End If
    End Select
	WaterProcesBusy[1].Lock()
End Function

php.php

<?php

/**
 * Change state of water for toilet
 *
 * @param int $state 0: Open, 1: Close, 2: Toggle
 * @return void
 */
public function SetWaterWC(int $state)
{
    switch ($state) {
        case 0: echo "open";
        case 1: echo "close";
        case 2: echo "toggle?";
    }
}