What is the output of the following code?
What is the output of the following code?
The given PHP code will produce an error. The variable $first has the value 'second', so $$first is equivalent to $second. However, $second is set to 'fisrt' instead of a valid variable. Therefore, echo $$first attempts to echo the value of a variable named 'fisrt', which has not been defined, leading to a notice about an undefined variable.
if the value of the variable $second is correct and not a typo and "fisrt".. the output will be a "Notice : Undefined variable: fisrt"
lo que genera el error son los signos pesos de mas en el echo ($$$first), si no hay error tipografico la respuesta seria un error