How can I access to a variable within a function which defined in another function?
For example:
<?php
function a() {
$fruit = "apple";
function b(){
$country="USA";
// How can I here access to $fruit
}
// And how can I here access to $country
}
?>
What you're doing is a pretty bad practice, because PHP's functions can't be nested like javascript in this manner. In your example a and b are both just global functions, and you'll get an error if you try to call a twice.
What I suspect you want, is this syntax:
function a() {
$fruit = "apple";
$country = null;
$b = function() use ($fruit, &$country) {
$country="USA";
// How can I here access to $fruit
};
// And how can I here access to $country
}
Of course, you will need to call $b() inside $a().
u can use global word. Try it and tell me if it works.
<?php
function a() {
$fruit = "apple";
$country=b();
// And how can I here access to $country
}
function b(){
global $fruit;
$country="USA";
// How can I here access to $fruit
return $country;
}
?>
,but u should do like that
<?php
function a() {
$fruit = "apple";
$country=b($fruit);
// And how can I here access to $country
}
function b($fruit){
$country="USA";
// How can I here access to $fruit
return $country;
}
?>
global is not good practice. Also $country is still not accessible in the function a
$fruitas an argument to yourb()-function. You then return$countryfrom yourb()function and use the response.