php - 致命错误：未捕获错误：调用未定义函数mysql_connect（）(Fatal error: Uncaught Error: Call to undefined function mysql_connect())

Question

I am trying to do a simple connection with XAMPP and MySQL server, but whenever I try to enter data or connect to the database, I get this error.

(我试图与XAMPP和MySQL服务器建立简单连接，但是每当我尝试输入数据或连接到数据库时，都会出现此错误。)

Fatal error: Uncaught Error: Call to undefined function mysql_connect() in C:\xampp\htdocs\register.php:22

(致命错误：未被捕获的错误：调用C：\ xampp \ htdocs \ register.php：22中未定义的函数mysql_connect（）)
Stack trace: #0 {main} thrown in C:\xampp\htdocs\register.php on line 22

(堆栈跟踪：在第22行的C：\ xampp \ htdocs \ register.php中抛出＃0 {main})

Example of line 22:

(第22行的示例：)

$link = mysql_connect($mysql_hostname , $mysql_username);

  ask by Demeteor translate from so

Answer 1

mysql_* functions have been removed in PHP 7.

(mysql_*函数已在PHP 7中删除。)

You probably have PHP 7 in XAMPP.

(您可能在XAMPP中具有PHP 7。)

You now have two alternatives: MySQLi and PDO .

(现在，您有两种选择： MySQLi和PDO 。)

Additionally, here is a nice wiki page about PDO.

(此外， 这是一个关于PDO的漂亮Wiki页面。)