Get Array Value in Combobox From MYSQL DataBase PHP

<?php
    @$conn = mysql_connect("localhost", "root", "");
    mysql_select_db("test", $conn);

    $query = "SELECT * from member";
    $result = mysql_query($query, $conn) or die(mysql_error());
    $num= mysql_num_rows($result);


    if ($num> 0) {
     while ($row = mysql_fetch_assoc($result)) {
        $array[] = array(
           'uid' => $row["uid"],
           'fname' => $row["fname"]
        );
     }
    }
    ?>

<form name="form" action="next.php" method="get">
        <select name="uid">
        <?php
        foreach($array as $value) {
          print("<option value=\"{$value['uid']}\">{$value['fname']}</option>");
        }
        ?>
        </select>
        <input type="submit" value="Send" />
</form>

Access control modifiers in php

There are a number of special keywords you can place before a class, a class function definition, or a class variable to alter the way PHP works with it - here's the full list, along with what each of them does:

• Public: This variable or function can be used from anywhere in the script
• Private: This variable or function can only be used by the object it is part of; it cannot be accessed elsewhere
• Protected: This variable or function can only be used by the object it is part of, or descendents of that class
• Final: This variable or function cannot be overridden in inherited classes
• Abstract: This function or class cannot be used directly - you must inherit from them first

That is just a vague description of what each of them do - to make sure you fully understand each of them, here are examples:

<?php

class Example {

    public $a = 1;

    protected $b = 2;

    private $c = 3;

    

    function show_abc()

{

        echo $this -> a ;

        echo $this -> b;

        echo $this -> c;

    }

}

$example = new Example();

echo "Publc a: {$example->a}<br/>";

//echo "Protected b: {$example->b}<br/>";

//echo "Private c: {$example->c}<br/>";

$example->show_abc();

?>

understanding class inheritance

<?php

class car{
    var $wheels = 4;
    var $doors = 4;
    function wheelsdoors(){
        return $this->wheels + $this->doors;
        
    }
    
    
}


class CompactCar extends car{
    
    var $doors = 2;
        
}

$car1 = new car();
$car2 = new CompactCar();


echo $car1->wheels . "<br>";
echo $car1->doors . "<br>";
echo $car1->wheelsdoors(). "<br>";
echo  "<br>";
echo  "<br>";
echo  "<br>";


echo $car2->wheels . "<br>";
echo $car2->doors . "<br>";
echo $car2->wheelsdoors(). "<br>";




?>