摘要：w 0-Qphp 在全局范围内访问变量有哪几种方法A2种 <?php$a = 1;$b = 2;var_dump($GLOBALS); <?php$a = 1;$b = 2; function Sum(){ global $a, $b; $b = $a + $b;} Sum();echo $b; 1 阅读全文