PHP & MySQL
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This test is for checking your ability to join ITP/Web Development
- 1.How many times will the function counter() be executed in the following code? function counter($start, &$stop) { if ($stop > $start) { return; } counter($start--, ++$stop); } $start = 5; $stop = 2; counter($start, $stop);
- A.
3
- B.
4
- C.
5
- D.
6
- 2.When a class is defined as final it:
- A.
Can no longer be extended by other classes.
- B.
Means methods in the class are not over-loadable.
- C.
Cannot be defined as such, final is only applicable to object methods.
- D.
Is no longer iteratable.
- 3.What is the maximum size of the VARCHAR column type?
- A.
255 Bytes
- B.
255 Characters
- C.
512 Bytes
- D.
512 Characters
- E.
No Limit
- 4.What is the output of the following code? [code] class test { public $value = 0; function test() { $this->value = 1; } function __construct() { $this->value = 2; } } $object = new test(); echo $object->value;
- A.
2
- B.
1
- C.
0
- D.
3
- E.
No Output, PHP will generate an error message.
- 5.Which of the following data types cannot be directly manipulated by the client?
- A.
Cookie Data
- B.
Session Data
- C.
Remote IP address
- D.
User Agent
- 6.Which of the following statements is correct?
- A.
Interfaces can extend only one interface
- B.
Interfaces can extend more than one interface
- C.
Interfaces can inherit a method from different interfaces
- D.
Interfaces can redeclare inherited methods
- 7.What super-global should be used to access information about uploaded files via a POST request?
- A.
$_SERVER
- B.
$_ENV
- C.
$_POST
- D.
$_FILES
- E.
$_GET
- 8.Which of the following statements about PHP is true? (Choose 3)
- A.
A final class can be derived.
- B.
A final class may be instantiated.
- C.
A class with a final function may be derived.
- D.
Static functions can be final.
- E.
Properties can be final.
- 9.What is the output of the following code? $first = "second"; $second = "first"; echo
- A.
First
- B.
Second
- C.
An empty string
- D.
An error
- 10.What is the output of the following code? <?php for ($i = 0; $i < 1.02; $i += 0.17) { $a[$i] = $i; } echo count($a); ?>
- A.
0
- B.
1
- C.
2
- D.
6
- E.
7
- 11.What is the output of the following script? <?php function fibonacci (&$x1 = 0, &$x2 = 1){ $x1 = $x2; $x2 = $result; return $result; } for ($i = 0; $i < 10; $i++) { echo fibonacci() . ','; } ?>
- A.
An error
- B.
1,1,1,1,1,1,1,1,1,1,
- C.
1,1,2,3,5,8,13,21,34,55,
- D.
Nothing
- 12.What is the difference between "print" and "echo" ?
- A.
There is no difference
- B.
Print returns length of data printed and echo does not
- C.
Echo returns length of the data printed and print does not
- D.
Print buffers the output, while echo does not
- 13.In the function setcookie() what does the 3rd prameter specify?
- A.
The name of the cookie.
- B.
The expiration time of the cookie.
- C.
The value of the cookie.
- D.
The IP address of the cookie's client.
- 14.Given the following array: $a = array(28, 15, 77, 43); Which function will remove the value 28 from $a?
- A.
Array_shift()
- B.
Array_pop()
- C.
Array_push()
- D.
Array_unshift()
- 15.Where does the session extension store the session data by default?
- A.
SQLite Database
- B.
MySQL Database
- C.
Shared Memory
- D.
File system
- E.
Session Server
- 16.What is the difference between DROP a table and TRUNCATE a table ?
- 17.What are the different types of errors in php ?
- 18.How can we submit form without submit button ?
- A.
Using XML
- B.
Using Javascript
- C.
Using Cookie
- D.
Using button
- 19.You have a variable $test that contains sub-strings divided by a dash ("-"). How can you put every sub-string into an array element easily?
- A.
Extract($test, "-");
- B.
Explode("-", $test);
- C.
To_array($test, "-");
- D.
Explode($test, "-");
- 20.What will the $array array contain at the end of this script? <?php function modifyArray (&$array){ foreach ($array as &$value){ $value = $value + 1; } $value = $value + 2; } $array = array (1, 2, 3); modifyArray($array); ?>
- A.
2, 3, 4
- B.
2, 3, 6
- C.
4, 5, 6
- D.
1, 2, 3
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