Define a user like this:
GRANT ALL ON *.* TO 'myuser'@'localhost' IDENTIFIED BY 'super$ecret';
Then try a PHP script like this:
<?php
mysqli_connect("localhost", "myuser", "super$ecret");
?>
What happens and why? How could you avoid it?
And for glory, what single line could you add that would prevent the error, without making any changes to the mysqli_connect line?
<?php
class A {
static function b() {
echo "It works\n";
}
}
$theClass = "A";
$x = new $theClass;
/* Are any of the following legal? Which? */
A::b();
$x->b();
$theClass::b();
?>
Given the following page:
<form> <input type="radio" name="BT.123" value="active" /> <input type="radio" name="BT.123" value="inactive" /> <input type="submit" value="Submit" /> </form> <?php echo "GET: ", $_GET['BT.123']; echo "POST: ", $_POST['BT.123']; echo "REQUEST: ", $_REQUEST['BT.123']; ?>
Assume the “inactive” button is checked and the form is submitted. What is the output?
Show Answer ▼
What, if anything, is the minimum change (fewest inserted/deleted/modified characters) required to make the output The result is bar:
<?php
class A {
private $foo = "bar";
public function __toString() {
return $this->foo;
}
}
$myObject = new A();
echo "The result is " . $myObject;
?>
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