php - mysqli_select_db() expects parameter 1 to be mysqli, array given -


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i need to convert project mysql mysqlii ,but have problem in config file, please error in code?

<?php   $db = array (   "hostname"=>"localhost",    "dbname"=>"prstitodb",   "dbuser"=>"root",   "dbpass"=>"",          );     $dbconnect = mysqli_connect($db['hostname'],$db['dbuser'],$db['dbpass']) or die(mysqli_error());     $dbselect = mysqli_select_db($db,['dbname']) or die(mysqli_error());   ?>

mysqli_select_db asked 2 parameters in first parameter connection object , provided 1 parameter , array :-

$dbselect = mysqli_select_db($db,['dbname']) or die(mysqli_error());

, need remove first , provide $dbconnect first parameter

to resolve error, simplify code in 1 line below:-

<?php    $dbconnect = mysqli_connect('localhost','root','','prstitodb') or die(mysqli_error()); ?>

but if still want go way remove , , it's ok

<?php   $db = array (   "hostname"=>"localhost",    "dbname"=>"prstitodb",   "dbuser"=>"root",   "dbpass"=>"",          );     $dbconnect = mysqli_connect($db['hostname'],$db['dbuser'],$db['dbpass']) or die(mysqli_error());     $dbselect = mysqli_select_db($dbconnect,$db['dbname']) or die(mysqli_error($dbconnect)); // remove `,` , provide connection object first parameter  ?>

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