在下面的代碼中,我想在public function
之外echo
。如何回顯功能以外的東西?
Public function lol(){
$green ="green";
}
例如,我想在以下代碼中回顯$green
。
public function green(){
echo"this is $green";
}
在下面的代碼中,我想在public function
之外echo
。如何回顯功能以外的東西?
Public function lol(){
$green ="green";
}
例如,我想在以下代碼中回顯$green
。
public function green(){
echo"this is $green";
}
你作爲一個參數傳遞$green
和回聲函數的返回值:
function green($green) {
return "This is ". $green;
}
echo green('green'); //Results in: This is green
echo green('yellow'); //Results in: This is yellow
試試下面的代碼:在構造函數中
function __construct() {
parent::__construct();
$green ="green";
}
public function green(){
echo"this is $green";
}
的$綠色變量。
$green;
class s {
public function lol() {
$GLOBALS['green'] = "green";
}
}
$instance = new s();
$instance->lol();
echo $green;
使用global variables與$GLOBALS
:
function lol(){
$GLOBALS['green'] ="green";
}
lol();
echo $green;