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PHP Part-III
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What are the recommended settings in the PHP configuration file, php.ini, for a testing environment?
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1 point
Option 1
Option 2
Option 3
Option 4
Which PHP script finds the earliest and latest dates from an array?
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1 point
Option 1
Option 2
Option 3
Option 4
Which command will extract the domain suffix ("com") from the string $string = "
https://cat-bounce.com
";?
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1 point
sub($string, -3)
substr($string, -3)
substr($string, 3)
$string.substr(-3)
Where is PHP code executed?
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1 point
in the client's browser
in the virtual machine
in the memory of the computer viewing the webpage
on a web server
Imagine a web application, built following a MVC architecture, that contains a quiz and a button to score it, When the user presses the Score button, which component should handle the request?
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1 point
router
controller
model
view
Which script might be used to continue a user's search for music, across different webpages?
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1 point
Option 1
Option 2
Option 3
Option 4
What below script will print?
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1 point
134
13
1
123
Which PHP variable name is invalid?
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1 point
$Double
$double
$_2times
$2times
What type of computer language is PHP?
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1 point
server-side scripting language
compiled language
machine language
algorithmic language
What is the output of this script?
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1 point
squirrel
The quick grey [squirrel].
[squirrel]
The quick grey squirrel.
Which is not a valid magic constant?
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1 point
__RESOURCE__
__FUNCTION__
__CLASS__
__TRAIT__
What is the output of this script?
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1 point
mango
apple
a parse error
pear
Create an associative array using $array1 as the keys and $array2 as the values:
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1 point
$array3 = array_merge($array1, $array2);
$array3 = array_union($array1, $array2);
$array3 = array_keys($array1, $array2);
$array3 = array_combine($array1, $array2);
A PHP "variable variable" takes the value of a variable and treats that as the name of a variable. For example, if $var is a variable then $$var is a variable variable whose name is the value of $var. Which script produces the output below, using variable variables?
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1 point
Option 1
Option 2
Option 3
Option 4
In PHP 7, What is the correct way to import multiple classes from namespace in a single declaration ?!
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1 point
use myApp\myNamespace{ClassA, ClassB, ClassC};
use myApp\myNamespace\ClassA, ClassB, ClassC;
use myApp\myNamespace[ClassA, ClassB, ClassC];
use myApp\myNamespace(ClassA, ClassB, ClassC);
What is the resulting output of this for statement?
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1 point
Option 1
Option 2
Option 3
FATAL ERROR syntax error, unexpected ')', expecting ';' on line number 2
Which is the most complete list of data types that PHP supports?
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1 point
string, integer, float, boolean, array, object, NULL, resource
string, integer, boolean, array, object, NULL, resource
string, integer, float, array, object, NULL, resource
string, integer, float, boolean, array, object, NULL
Which loop displays all numbers from 1 to 10 inclusive?
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1 point
$i = 1; while ($i < 10) { echo $i++ . '<br>'; }
$i = 0; while ($i <= 10) { echo $i++ . '<br>'; }
while ($i <= 10) { echo ++$i . '<br>'; }
$i = 0; while ($i < 10) { echo ++$i . '<br>'; }
Assume that $r is 255, and $g and $b are both 0. What is the correct code to output "#ff0000"?
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1 point
printf('#%2x%2x%2x', 255, 0, 0);
printf('#%2X%2X%2X', $r, 0, 0);
printf('#%x%x%x', 255, 0, 0);
printf('#%02x%02x%02x', 255, 0, 0);
Which superglobal variable holds information about headers, paths, and script locations?
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1 point
$_SERVER
$SERVER_VARIABLES
$_ENV
$GLOBALS
When should this php script be used?
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1 point
when a user goes to pay for an item online
when items are placed in a cart
at first registration
at every login, for security
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