MYSQL - App Inventor - label name

[KhuBann]

what I receive from the php, in this case the names of the columns

[Juan_Antonio]

What is Etiquet9, what do you get in Etiqueta9?
can you give an example?

For example, in Etiqueta9 I receive this:
user, user, user, user

Write what you receive on the Label9

[KhuBann]

i give usuariosusuario,,clave,,

[Juan_Antonio]

[KhuBann]

now show this error "The operation select list item cannot accept the arguments: , ["[["usuariosusuario,clave,"]]"], [1]"

[KhuBann]

i cant fix this

[TIMAI2]

Help us to help you.

Show...

1. The raw response content from the php call. Does this provide the column headers (label names) ?
2. A schematic (drawing/diagram...) showing how this response content should be set out to your labels.

[KhuBann]

1.Yes, my code show the column name.

2.i wanna something this

[TIMAI2]

It should be as simple as this: