你的意思如果是想把aa注册成session变量吗?可以用如下方法试一试:<?
session_start();
$arg="aa";
if (!session_is_registered($arg))
session_register($arg);
$$arg=100;
echo $$arg;
?>如果想把arg注册成session变量,可以用如下方法试一试:<?
session_start();
if (!session_is_registered("arg"))
session_register("arg");
$arg=100;
echo $arg;
?>
session_start();
$arg="aa";
if (!session_is_registered($arg))
session_register($arg);
$$arg=100;
echo $$arg;
?>如果想把arg注册成session变量,可以用如下方法试一试:<?
session_start();
if (!session_is_registered("arg"))
session_register("arg");
$arg=100;
echo $arg;
?>
<?
session_start();
if (!session_is_registered("arg"))
session_register("arg");
$arg=100;
echo $arg;
?>
Warning: open(/tmp\sess_9a36d06f145f32d99cad43ee73d67a2f, O_RDWR) failed: No such file or directory (2) in c:\apache\apache\htdocs\test.php on line 7
100
Warning: open(/tmp\sess_9a36d06f145f32d99cad43ee73d67a2f, O_RDWR) failed: No such file or directory (2) in Unknown on line 0Warning: Failed to write session data (files). Please verify that the current setting of session.save_path is correct (/tmp) in Unknown on line 0
<?
session_start();
if (!session_is_registered("arg")){
session_register("arg");
$arg=100;
echo $arg;
}
?>