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Viewing questions 51-60 out of questions
Questions # 51:

When a query that is supposed to affect rows is executed as part of a transaction, and reports no affected rows, it could mean that: (Choose 2)

Options:

A.

The transaction failed

B.

The transaction affected no lines

C.

The transaction was rolled back

D.

The transaction was committed without error

Questions # 52:

You want to access the 3rd character of a string, contained in the variable $test. Which of the following possibilites work? (Choose 2)

Options:

A.

echo $test(3);

B.

echo $test[2];

C.

echo $test(2);

D.

echo $test{2};

E.

echo $test{3};

Questions # 53:

What will an opcode cache ALWAYS automatically improve?

Options:

A.

Running time of a loop in a PHP script

B.

Efficiency of HTML markup generated by a PHP script

C.

Execution speed of a PHP script

D.

Memory footprint of a PHP script

E.

None of the above

Questions # 54:

Which of the following statements about exceptions is correct? (Choose 2)

Options:

A.

you can only throw classes derived from Exception

B.

a try block can have multiple catch blocks

C.

a try block must not be followed by a catch block

D.

try blocks cannot contain nested try blocks

Questions # 55:

What is the output of the following code?

function fibonacci (&$x1 = 0, &$x2 = 1)

{

$result = $x1 + $x2;

$x1 = $x2;

$x2 = $result;

return $result;

}

for ($i = 0; $i < 10; $i++) {

echo fibonacci() . ',';

}

Options:

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

Questions # 56:

Which elements does the array returned by the function pathinfo() contain?

Options:

A.

root, dir, file

B.

dirname, filename, fileextension

C.

dirname, basename, extension

D.

path, file

Questions # 57:

What does the __FILE__ constant contain?

Options:

A.

The filename of the current script.

B.

The full path to the current script.

C.

The URL of the request made.

D.

The path to the main script.

Questions # 58:

Which of the following statements are FALSE?

Options:

A.

SimpleXML allows removal of attributes.

B.

SimpleXML allows addition of new attributes.

C.

SimpleXML allows removal of nodes.

D.

SimpleXML allows addition of new nodes.

E.

None of the above

Questions # 59:

What can prevent PHP from being able to open a file on the hard drive (Choose 2)?

Options:

A.

File system permissions

B.

File is outside of open_basedir

C.

File is inside the /tmp directory.

D.

PHP is running in CGI mode.

Questions # 60:

Which of the following PHP functions can be used to set the HTTP response code? (Choose 2)

Options:

A.

header_add()

B.

header()

C.

http_set_status()

D.

http_response_code()

E.

http_header_set()

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