如:$this->config = &$config;
如:if(@$_POST['add']){...}
还有这个
static function &instance() {
static $object;
if(empty($object)) {
$object = new self();
}
return $object;
}
分别都是什么意思和作用,请说明,感谢!!!
回复讨论(解决方案)
@ 是忽略错误提示,使其错误消息不会显示在程序里,&是取地址,也可以说是地址引用.不知道准不准确
@ 是忽略错误提示,使其错误消息不会显示在程序里,&是取地址,也可以说是地址引用.不知道准不准确
是这个意思.
//@用于抑制警告输出,通常用在PHP数据库连接数据库这里,如 @mysql_connect(self::$dbhost,self::$dbuser,self::$dbpassword); //&为引用变量 or 函数地址等,这个&跟C语言的指针有相似之处, //但并不相同,C语言的指针指向内存 //而PHP指的是不同的名字访问同一个变量内容.如 $a=5; $b=&$a; echo $b;
错误御制符..
引用 1 楼 suconghou 的回复:@ 是忽略错误提示,使其错误消息不会显示在程序里,&是取地址,也可以说是地址引用.不知道准不准确
是这个意思.
确实是这个意思....

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