mysql_connect无法正常使用mysql修复[重复]

Question

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mysql_connect is not working and I don't know how to fix it with mysqli.

I have tried to degrade my PHP Version from PHP 7 to 5, but I failed either

Here is my code:

<?php

$query1=mysql_connect("localhost","root","");


mysql_select_db("edgedata",$query1);


$start=0;

$limit=8;


if(isset($_GET['id']))


{`
    $id=$_GET['id'];

    $start=($id-1)*$limit;
}

$query=mysql_query("select * from items LIMIT $start, $limit");

while($query2=mysql_query_fetch_array($query))
{

</div>

Answer 1

I explain how to set mysqli in connection.

  $con=new mysqli("localhost","root","","edgedata");
   $start=0;
   $limit=8;
   if(isset($_GET['id']))
   {
    $id=$_GET['id'];

     $start=($id-1)*$limit;

    }
     $query=mysqli_query($con,"select * from items LIMIT $start, $limit");
       while($query2=mysqli_fetch_array($query)) {