Explode php string

Question

I have a strange problem at least for me.

I have a string in php:

$str='10,20,30,40';
explode(',',$str);

When I do the string explode and pass the result to a view via $ajax I get the following result:

"\n n10203040"

Can someone explain to me why "\n n"?

Answer 1

Or you can do the following:

<?php
 $json = str_replace('\n', '', $json);
?>

is an option when you have n between text