You'd like to use the class MyDBConnection that's defined in the MyGreatFrarnework\GreafDatabaseAbstractionLayer namespace, but you want to minimize *as much as possible* the length of the class name you have to type. What would you do?
Answer :
Import the MyGreatFrarnework\GreafDatabaseAbstractionLayer namespace
Which of the following describes a PHP extension?
Answer :
A plugin that changes the way PHP behaves
What is the output of the following code ?
$a = 1;
++$a;
$a *=$a;
echo --$a;
Answer :
3
What is the output of the following code?
$a = 'a'; $b = 'b';
echo isset($c) ? $a.$b.$c : ($c = 'c').'d';
Answer :
cd
What is the result of the following bitwise operation in PHP?
1 ^ 2
Answer :
3
What is the output of the following code?
function increment ($val)
{
$val = $val + 1;
}
$val = 1;
increment ($val);
echo $val;
Answer :
1
Which of the following is NOT true about PHP traits?
Answer :
A trait can implement an interface.
What is the output of the following code?
$a = array('a', 'b'= >'c');
echo property_exists((object) $a, 'a')?'true':'false';
echo '-';
echo property_exists((object) $a, 'b')?'true':'false'
Answer :
false-true
What is the output of the following code?
class Bar {
private $a = 'b';
public $c = 'd';
}
$x = (array) new Bar();
echo array_key_exists('a', $x) ? 'true' : 'false';
echo '-';
echo array_key_exists('c', $x) ? 'true' : 'false';
Answer :
false-true
Which of the following items in the $_SERVER superglobal are important for authenticating the
client when using HTTP Basic authentication?
