我连接的时候报错了，哪位大神帮忙看一下？
if(mysql_connect("localhost","root","")){
echo "连接成功！"; }else{
echo "连接失败！"; } ?&Fatal error: Uncaught Error: Call to undefined function mysql_connect() in /Applications/XAMPP/xamppfiles/htdocs/myproject/06day/test.php:2 Stack trace: #0 {main} thrown in /Applications/XAMPP/xamppfiles/htdocs/myproject/06day/test.php on line 2
是不是mysql版本太高了，mysql_connect不行，但是mysqli_connect可以
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