Functions, Zend Certification

Question: What is the best way to ensure that a user-defined function is always passed an object as its single parameter?
A
function myfunction(stdClass $a)

B
function myfunciton($a = stdClass)

C
Use is_object() within the function

D
There is no way to ensure the parameter will be an object

E
function myfunction(Object $a)

Note: Not available
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Question: What does the following function do, when passed two integer values for $p and $q?
<?php function magic($p, $q) { return ($q == 0) ? $p : magic($q, $p % $q); } ?>
A
Loops infinitely

B
Switches the values of $p and $q

C
Determines if they are both even or odd

D
Determines the greatest common divisor between them

E
Calculates the modulus between the two

Note: Not available
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Question: What would go in place of ?????? below to make this script execute without a fatal error?
<?php $a = 1; $b = 0; ?????? $c = $a / $b; ?>
A
quit();

B
die();

C
stop();

D
__halt_compiler();

E
exit();

Note: Not available
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Question: What is the output of the following?<?php

$a = 20;

function myfunction($b) {
	$a = 30;
	
	global $a, $c;
	return $c = ($b + $a);
}

print myfunction(40) + $c;

?>
A120

BSyntax Error

C60

D70

E20

Note: Not available

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Question: What would you replace ??????? with, below, to make the string Hello, World! be displayed?
<?php function myfunction() { ??????? print $string; } myfunction("Hello, World!"); ?>
A
There is no way to do this

B
$string = $argv[1];

C
$string = $_ARGV[0];

D
list($string) = func_get_args();

E
$string = get_function_args()

Note: Not available
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Question: What is the output of the following function?<?php

function &find_variable(&$one, &$two, &$three) {
	
	if($one > 10 && $one < 20) return $one;
	if($two > 10 && $two < 20) return $two;
	if($three > 10 && $three < 20) return $three;
}

$one = 2;
$two = 20;
$three = 15;

$var = &find_variable($one, $two, $three);

$var++;

print "1: $one, 2: $two, 3: $three";

?>
A1: 2, 2: 20, 3: 15

B1: 3, 2:21, 3:16

C1: 2, 2:21, 3:15

D1: 3, 2: 20, 3: 15

E1: 2, 2: 20, 3: 16

Note: Not available

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Question: For an arbitrary string $mystring, which of the following checks will correctly determine if the string PHP exists within it?
A
if(strpos($mystring, "PHP") !== false)

B
if(!strpos($mystring,"PHP"))

C
if(strpos($mystring, "PHP") === true)

D
if(strloc($mystring, "PHP") == true)

E
if(strloc($mystring, "PHP") === false)

Note: Not available
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Question: What is the best way to ensure that a user-defined function is always passed an object as its single parameter?

Question: What does the following function do, when passed two integer values for $p and $q?
<?php function magic($p, $q) { return ($q == 0) ? $p : magic($q, $p % $q); } ?>

Question: What would go in place of ?????? below to make this script execute without a fatal error?
<?php $a = 1; $b = 0; ?????? $c = $a / $b; ?>

Question: What is the output of the following?
<?php $a = 20; function myfunction($b) { $a = 30; global $a, $c; return $c = ($b + $a); } print myfunction(40) + $c; ?>

Question: What would you replace ??????? with, below, to make the string Hello, World! be displayed?
<?php function myfunction() { ??????? print $string; } myfunction("Hello, World!"); ?>

Question: For an arbitrary string $mystring, which of the following checks will correctly determine if the string PHP exists within it?

Question: What is the best way to ensure that a user-defined function is always passed an object as its single parameter?

Question: What does the following function do, when passed two integer values for $p and $q?<?php function magic($p, $q) { return ($q == 0) ? $p : magic($q, $p % $q); } ?>

Question: What would go in place of ?????? below to make this script execute without a fatal error?<?php $a = 1; $b = 0; ?????? $c = $a / $b; ?>

Question: What is the output of the following?<?php $a = 20; function myfunction($b) { $a = 30; global $a, $c; return $c = ($b + $a); } print myfunction(40) + $c; ?>

Question: What would you replace ??????? with, below, to make the string Hello, World! be displayed?<?php function myfunction() { ??????? print $string; } myfunction("Hello, World!"); ?>

Question: For an arbitrary string $mystring, which of the following checks will correctly determine if the string PHP exists within it?

Question: What does the following function do, when passed two integer values for $p and $q?
<?php function magic($p, $q) { return ($q == 0) ? $p : magic($q, $p % $q); } ?>

Question: What would go in place of ?????? below to make this script execute without a fatal error?
<?php $a = 1; $b = 0; ?????? $c = $a / $b; ?>

Question: What is the output of the following?
<?php $a = 20; function myfunction($b) { $a = 30; global $a, $c; return $c = ($b + $a); } print myfunction(40) + $c; ?>

Question: What would you replace ??????? with, below, to make the string Hello, World! be displayed?
<?php function myfunction() { ??????? print $string; } myfunction("Hello, World!"); ?>