用于xor操作的php isset函数

Question

if($line_of_text['EMPDesignation3'] == '' ^ $line_of_text['EmpName3'] == '') {
                        $error_status['success_msg'] = "emp designation3 and emp name3 not empty";
                        $error_status['status'] = 0;
                        return $error_status;
                    }

显示错误提示：未定义的索引：

中的EMPDesignation3

Answer 1

使用xor运算符尝试下面的isset代码：

 if(isset($line_of_text['EMPDesignation3']) ^ isset($line_of_text['EmpName3'])) {
    $error_status['success_msg'] = "emp designation3 and emp name3 not empty";
    $error_status['status'] = 0;
    return $error_status;
    }