200-550 Practice Exam Questions and Answers

A.  

Analysing of nearly any aspect of classes and interfaces

B.  

Analysing of nearly any aspect of functions

C.  

Adding class methods

D.  

Implement dynamic construction (new with variable class name)

A.  

PHPIterator

B.  

RecursiveTreeIterator

C.  

RecursiveDirectoryIterator

D.  

SplTempFileObject

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

A.  

bool(false)

B.  

int(3)

C.  

int(1)

D.  

NULL

E.  

Array

A.  

Add indices on joined columns

B.  

Add a WHERE clause

C.  

Add a LIMIT clause

D.  

Use an inner join

A.  

Class constants are public

B.  

Class constants are being inherited

C.  

Class constants can omit initialization (default to NULL)

D.  

Class constants can be initialized by const

A.  

echo $xml->books->book[2];

B.  

echo $xml->books->book[1];

C.  

echo $xml->book[1];

D.  

echo $xml->xpath("/books/book[@id=2]");

E.  

$c = $xml->children(); echo $c[1];

A.  

addslashes()

B.  

htmlentities()

C.  

htmlspecialchars()

D.  

strip_tags()

E.  

quotemeta()

A.  

22

B.  

22.00

C.  

022.000000

D.  

22.000000

A.  

SplFixedArray

B.  

SplObjectStorage

C.  

SplString

D.  

spl_object_hash

E.  

spl_same_object