PHP使用字符串传递变量名和函数名

';
var_dump(call_user_func_array('showTime', []));
echo '
';
var_dump(call_user_func_array('time', []));
echo '
';

$data = ['status' => 1, 'info' => 'data is ok!', 'rows' => ['rowid' => 1]];
$variable = '$data';
$variable = substr($variable, 1);
$variableParam = 'status';
$return = $$variable;
var_dump($return);
echo '
';
$value = $return[$variableParam];
var_dump($value);
echo '
';
var_dump(call_user_func_array('showTime', [$value]));
echo '
';