Access local variable in function from outside function (PHP)

Question

Is there a way to achieve the following in PHP, or is it simply not allowed? (See commented line below)

function outside() {
    $variable = 'some value';
    inside();
}

function inside() {
    // is it possible to access $variable here without passing it as an argument?
}

Answer 1

note that using the global keyword is not advisable, as you have no control (you never know where else in your app the variable is used and altered). but if you are using classes, it'll make things a lot easier!

class myClass {
    var $myVar = 'some value';

    function inside() {
        $this->myVar = 'anothervalue';
        $this->outside(); // echoes 'anothervalue'
    }

    function outside() {
        echo $this->myVar; // anothervalue
    }
}

Answer 2

Its not possible. If $variable is a global variable you could have access it by global keyword. But this is in a function. So you can not access it.

It can be achieved by setting a global variable by$GLOBALS array though. But again, you are utilizing the global context.

function outside() {
    $GLOBALS['variable'] = 'some value';
    inside();
}

function inside() {
        global $variable;
        echo $variable;
}