[PHP] returning value to variable

[tg]

hi

i need returning value of function as a variable

example :

function 1 () {
    return "some error";
}
function 2 () {
    $v = 1();
    if ( $v != '' ) echo "error";
}
it doesn't work this way
this works :  echo 1();
but i need the string value as a variable
thanks

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