php - Failed to connect to MYSQL, What did i do wrong? -

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i need assistance setup website. cant connect mysql, , ask did wrong?

<?php $sitename = "csgoprofit.dk"; $link = mysqli_connect("host", "name", "pass", "database") or die("error " . mysqli_error($link)); $dbname = "u587432735_db"; $db_selected = mysqli_select_db($link, $dbname); mysqli_set_charset("set names utf8"); if (mysqli_connect_errno()); { echo "failed connect mysql: " . mysqli_connect_error(); exit(); }  function fetchinfo($rowname,$tablename,$finder,$findervalue) {     if($finder == "1") $result = mysqli_query($link, "select $rowname $tablename");     else $result = mysqli_query($link, "select $rowname $tablename `$finder`='$findervalue'");     $row = mysqli_fetch_assoc($result);     return $row[$rowname]; } ?>  mysqli_query() expects parameter 1 mysqli, null given in <b>/home/u587432735/public_html/set.php</b> on line <b>10</b><br /> <br /> <b>warning</b>: mysqli_fetch_assoc() expects parameter 1 mysqli_result, null given in <b>/home/u587432735/public_html/set.php</b> on line <b>11</b><br /> <br /> <b>warning</b>: mysqli_query() expects parameter 1 mysqli, null given in

you need pass connection variable function can use golbal

function fetchinfo($rowname, $tablename, $finder, $findervalue) {     global $link;     if ($finder == "1")         $result = mysqli_query($link, "select $rowname $tablename");     else         $result = mysqli_query($link, "select $rowname $tablename `$finder`='$findervalue'");     $row = mysqli_fetch_assoc($result);     return $row[$rowname]; }

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