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Hi,
​
I've read other questions and replies about this error but I'm not able to find the right solution to me.
​
in actions>load I've added a PHP module with this function:

function test($field) {
   if ($this->data("language")=="it-IT") {
      echo $this->get("read_data1.db_test_it.', $field,'_it");}
    else {
      echo $this->get("read_data1.db_test_en.', $field,'_en");}
}

in my view I call it like:

test("MyField");

The idea was to read and print the field "read_data1.db_test_it.MyField_it" if the interface is in Italian and "read_data1.db_test_en.MyField_en" in any other case but when I load my form I have the error "0 USING $THIS WHEN NOT IN OBJECT CONTEXT" and I really can figure out what do I have to do to have it working.
​
Thanks in advance for any help.

using $this should be fine, but your code has a quotes problem, please try to fix this first ?

Thanks for reply Max, you are right, I made some mess with quotes but I tried this just to take it easy

function test() {
   $text = $this->get("read_data1.db_test_it.ID");
   echo $text;
}

then I call it like

test();

and the same errore appear, If I write

<?php
$text = $this->get("read_data1.db_test_it.ID");
echo $text;
?>

in views it works, what am I missing?

what if you test the 2 lines of code without the PHP tags ?

If I add a PHP module in actions>load with those two lines (so not creating a function) I have no error but no data too, I also add some text to the echo like

echo $text,'abc';

and then I see abc and nothing more, if I copy the same code in a html module in views (with PHP tags) ID field is correctly displayed.

I added a PHP action to the first page and used this code:

function test(){
    echo 123;
}

test();

that showed 123 on the top of the form which is the expected behavior!

Sorry for my English Max, I couldn't explain what I did.
In Actions>load>PHP module I wrote

function test() {
   $text = $this->get("read_data1.db_test_it.ID");
   echo $text,'abc';
}

Then in Views>HTML module I wrote

<?php
test();
echo '<br>';
$text = $this->get("read_data1.db_test_it.ID");
echo $text,'abc';
?>

The result when I load the form is

abc
25abc

So ID wasn't read in the function but only in the view code, no error reported.
Thanks again for the support.

the PHP is above or below the "read_data1" ?

You are right, it was before read_data1, now I moved it below but I got again the "0 USING $THIS WHEN NOT IN OBJECT CONTEXT" error when loading the form.

ok, thanks Max

No problem!