200-710 Online Practice Questions and Answers
What is the output of the following code?
for ($i = 0; $i < 1.02; $i += 0.17) {
$a[$i] = $i;
}
echo count($a);
A. 0
B. 1
C. 2
D. 6
E. 7
Which of these error types may be handled by a user defined error handler function? (Choose two.)
A. E_ERROR
B. E_NOTICE
C. E_PARSE
D. E_WARNING
Type hinting in PHP allows the identification of the following variable types: (Choose 2)
A. String
B. Integer
C. Array
D. Any class or interface type
E. All of the above
Which of the following are valid identifiers? (Choose 3)
A. function 4You() { }
B. function _4You() { }
C. function object() { }
D. $1 = "Hello";
E. $_1 = "Hello World";
Consider the following two files. When you run test.php, what would the output look like?
test.php:
include "MyString.php";
print ",";
print strlen("Hello world!");
MyString.php:
namespace MyFramework\String;
function strlen($str)
{
return \strlen($str)*2; // return double the string length
}
print strlen("Hello world!")
A. 12,12
B. 12,24
C. 24,12
D. 24,24
E. PHP Fatal error: Cannot redeclare strlen()
What is the output of the following code?
$a = 3; switch ($a) {
case 1: echo 'one'; break;
case 2: echo 'two'; break;
default: echo 'four'; break;
case 3: echo 'three'; break;
}
A. one
B. two
C. three
D. four
When uploading a file to a PHP script using the HTTP PUT method, where would the file data be found?
A. the $_FILES super-global
B. the input stream php://input
C. the $_POST super-global
D. the global variable scope
Given the following DateTime objects, what can you use to compare the two dates and indicate that $date2 is the later of the two dates?
$date1 = new DateTime('2014-02-03');
$date2 = new DateTime('2014-03-02');
A. $date2 > $date1
B. $date2 < $date1
C. $date1->diff($date2) < 0
D. $date1->diff($date2) > 0
Which of the following is correct? (Choose 2)
A. A class can extend more than one class.
B. A class can implement more than one class.
C. A class can extend more than one interface.
D. A class can implement more than one interface.
E. An interface can extend more than one interface.
F. An interface can implement more than one interface.
An HTML form has two submit buttons. After submitting the form, how can you determine with PHP which button was clicked?
A. An HTML form may only have one button.
B. You cannot determine this with PHP only. You must use JavaScript to add a value to the URL depending on which button has been clicked.
C. Put the two buttons in different forms, but make sure they have the same name.
D. Assign name and value attributes to each button and use $_GET or $_POST to find out which button has been clicked.