When I echo var_dump($_variable), I get one long, wrapping line with all varable\'s and values like
[\"kt_login_user\"]=> string(8) \"teacher1\" [\"kt_lo
For me the right answer was
echo '' . var_export($var, true) . '';
' . var_export($var, true) . '
Since var_dump($var) and var_export($var) do not return a string, you have to use var_export($var, true) to force var_export to return the result as a value.
var_dump($var)
var_export($var)
var_export($var, true)
var_export