atal error: Uncaught Error: Call to undefined function mysql_connect() in C:xampphtdocshotelmenuentryprocess.php:8

"Fatal error: Uncaught Error: Call to undefined function mysql_connect() in C:\xampp\htdocs\hotelmenuentry\process.php:8 Stack trace: #0 {main} thrown in C:\xampp\htdocs\hotelmenuentry\process.php on line 8"

Please give me solution.