如何在像Javascript上使用Closure作为匿名函数？
问题描述：
I have a question, I didn't clearly understand what Closures uses on OOP, but I did something like this:
<?php /** * */
class Xsample {
public static $name;
public static $address = array("Mandaluyong", "City");
public static function setName ($name) {
self::$name = $name;
}
public static function getName() {
echo self::$name;
}
public static function sub ($func) {
return call_user_func_array($func, self::$address);
}
}
Xsample::setName("Eric");
Xsample::sub(function ($address) {
echo $address;
});
?>
and it echo "Mandaluyong". I'm expecting that it'll return an array from Xsample::$address but it didn't. Could someone please explain this to me?
答
call_user_func_array passes the 2nd argument's elements as paramters to the function being called. so if your function had another parameter it will work.
Xsample::sub(function ($address, $address2) {
echo $address;
echo $address2;
});