如何定義一個php類的全局實例？

Question

這是我的代碼：

<?php 
require_once 'classes/dbconnect.php'; 
$connector = new dbconnect(); 
pp(); 
function pp(){ 
$uid="0000007"; 
$table = $connector->query("SELECT * FROM tc_personal WHERE uid = '$uid'"); 
$tb = mysql_fetch_object($table); 
print $tb->name; 
} 
?> 

但是這個代碼將無法工作，因爲PP（）函數不能訪問$連接器。 我如何定義一個全局變量作爲$連接器？

Answer 1

<?php 
require_once 'classes/dbconnect.php'; 
global $connector; 
$connector = new dbconnect(); 
pp(); 
function pp(){ 
global $connector; 
$uid="0000007"; 
$table = $connector->query("SELECT * FROM tc_personal WHERE uid = '$uid'"); 
$tb = mysql_fetch_object($table); 
print $tb->name; 
} 
?> 

Answer 2

肯定比使用全局變量更好，即使沒有OOP

<?php 
require_once 'classes/dbconnect.php'; 
$connector = new dbconnect(); 
pp($connector); 

function pp($connector){ 
    $uid="0000007"; 
    $table = $connector->query("SELECT * FROM tc_personal WHERE uid = '$uid'"); 
    $tb = mysql_fetch_object($table); 
    print $tb->name; 
} 
?>