errorTable＆＃39; college.college＆＃39;不存在：查询错误

Question

<?php
    ini_set('display_errors',1); 
    error_reporting(E_ALL);
    include 'conn.php';
    // Attempt select query execution
    $db_select = mysqli_select_db($conn,'college'); 

    if (!$db_select) { 
        die("Database selection failed:: " . mysql_error($conn)); 
    }else{

    }  //You don't need a ; like you do in SQL
    $result = mysqli_query($conn,"SELECT * FROM college") or die("error".mysqli_error($conn));

    echo "<table>"; // start a table tag in the HTML
    $result = array();
    while($row = mysqli_fetch_array($result)){   //Creates a loop to loop through results
        echo "<tr><td>" . $row['city'] . "</td><td>" . $row['clients'] . "</td></tr>";  //$row['index'] the index here is a field name
    }
    echo "</table>"; //Close the table in HTML

    mysqli_close($conn);
?>

我在查询statemenet中遇到表大学确实存在的错误。我在phpmyadmin中创建了table college并用假值填充它，但我仍然遇到查询错误。错误在第14行。