PHP Arrays, PHP

PHP Arrays

Question: Which of the following functions will sort an array in ascending order by value, while preserving key associations?
A
asort()

B
usort()

C
krsort()

D
ksort()

E
sort()

Note: Not available
1. Report
Question: What is the output of the following code block?

<?php

$a = "The quick brown fox jumped over the lazy dog.";

$b = array_map("strtoupper", explode(" ", $a));

foreach($b as $value) {
print "$value ";
}

?>
A
THE QUICK BROWN FOX JUMPED OVER THE LAZY DOG.

B
A PHP Error

C
Array Array Array Array Array Array Array Array Array>

D
None

E
Array

Note: Not available
1. Report
Question: Which from the following list is not an approrpiate use of an array?
A
As a list

B
All of these uses are valid

C
As a Lookup Table

D
A Stack

E
As a hash table

Note: Not available
1. Report
Question: What is the output of this code snippet?

<?php

$a = array(0.001 => 'b', .1 => 'c');

print_r($a);

?>
A
An empty array

B
0.001 => 'b', .1 => c

C
0 => 'c'

D
'0.001' => 'b', '0.1' => c'

E
A Syntax Error

Note: Not available
1. Report
Question: Which of the following functions could be used to break a string into an array?
A
array_split()

B
split()

C
string_split()

D
preg_match_all()

E
explode()

Note: Not available
1. Report
Question: If you wanted a variable containing the letters A through Z, that allowed you to access each letter independently, which of the following approaches could you use?
A
$str = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

B
range('A', 'Z');

C
explode("", "ABCDEFGHIJKLMNOPQRSTUVWXYZ");

D
You would use the ALPHA_ARRAY constant

E
None

Note: Not available
1. Report
Question: What is the output of the following code block?

<?php

$array = array(1 => 0, 2, 3, 4);

array_splice($array, 3, count($array), array_merge(array('x'), array_slice($array, 3)));

print_r($array);

?>
A
1 => 1, 2 => 2, 3 => x, 4=> 4

B
0 => 1, 2 => 2, 3 => 3, 4 => 4, x => 3

C
0 => 0, 1=> 2, 2 => 3, 3 => x, 4 => 4

D
0 => x, 1 => 0, 2 => 1, 3=> 2, 4=>3

E
1 => 1, 3 => x, 2 => 2, 4 => 4

Note: Not available
1. Report
Question: Which function would you use to add an element to the beginning of an array?
A
array_shift()

B
array_push();

C
$array[0] = "value";

D
array_unshift()

E
array_pop();

Note: Not available
1. Report

Question: Which key will not be displayed from the following code block?
<?php

$array = array('a' => 'John',
 'b' => 'Coggeshall',
 'c' => array('d' => 'John',
 'e' => 'Smith'));

function display($item, $key) {
	print "$key => $item\n";
}

array_walk_recursive($array, "display");

?>
Ad

Bc

Cb

Da

EThey all will be displayed

Note: Not available

Report

Question: What is the result of the following code snippet?
<?php

$array = array('a' => 'John',
 'b' => 'Coggeshall',
 'c' => array('d' => 'John',
 'e' => 'Smith'));

function something($array) {
	extract($array);
	return $c['e'];
}

print something($array);
?>
ASmith

BA PHP Warning

C Coggeshall

D NULL

EArray

Note: Not available

Report

First Prev 7 8 9 10 11 Next Last

Question: Which of the following functions will sort an array in ascending order by value, while preserving key associations?

Question: What is the output of the following code block?

<?php

$a = "The quick brown fox jumped over the lazy dog.";

$b = array_map("strtoupper", explode(" ", $a));

foreach($b as $value) {
print "$value ";
}

?>

Question: Which from the following list is not an approrpiate use of an array?

Question: What is the output of this code snippet?

<?php

$a = array(0.001 => 'b', .1 => 'c');

print_r($a);

?>

Question: Which of the following functions could be used to break a string into an array?

Question: If you wanted a variable containing the letters `A` through `Z`, that allowed you to access each letter independently, which of the following approaches could you use?

Question: What is the output of the following code block?

<?php

$array = array(1 => 0, 2, 3, 4);

array_splice($array, 3, count($array), array_merge(array('x'), array_slice($array, 3)));

print_r($array);

?>

Question: Which function would you use to add an element to the beginning of an array?

Question: Which key will not be displayed from the following code block?

<?php

$array = array('a' => 'John',
'b' => 'Coggeshall',
'c' => array('d' => 'John',
'e' => 'Smith'));

function display($item, $key) {
print "$key => $item\n";
}

array_walk_recursive($array, "display");

?>

Question: What is the result of the following code snippet?

<?php

$array = array('a' => 'John',
'b' => 'Coggeshall',
'c' => array('d' => 'John',
'e' => 'Smith'));

function something($array) {
extract($array);
return $c['e'];
}

print something($array);
?>

Question: Which of the following functions will sort an array in ascending order by value, while preserving key associations?

Question: What is the output of the following code block?<?php$a = "The quick brown fox jumped over the lazy dog.";$b = array_map("strtoupper", explode(" ", $a));foreach($b as $value) { print "$value ";}?>

Question: Which from the following list is not an approrpiate use of an array?

Question: What is the output of this code snippet?<?php$a = array(0.001 => 'b', .1 => 'c');print_r($a);?>

Question: Which of the following functions could be used to break a string into an array?

Question: If you wanted a variable containing the letters A through Z, that allowed you to access each letter independently, which of the following approaches could you use?

Question: What is the output of the following code block?<?php$array = array(1 => 0, 2, 3, 4);array_splice($array, 3, count($array), array_merge(array('x'), array_slice($array, 3))); print_r($array);?>

Question: Which function would you use to add an element to the beginning of an array?

Question: Which key will not be displayed from the following code block?<?php$array = array('a' => 'John', 'b' => 'Coggeshall', 'c' => array('d' => 'John', 'e' => 'Smith'));function display($item, $key) { print "$key => $item\n";}array_walk_recursive($array, "display");?>

Question: What is the result of the following code snippet?<?php$array = array('a' => 'John', 'b' => 'Coggeshall', 'c' => array('d' => 'John', 'e' => 'Smith'));function something($array) { extract($array); return $c['e'];}print something($array);?>

Question: What is the output of the following code block?

<?php

$a = "The quick brown fox jumped over the lazy dog.";

$b = array_map("strtoupper", explode(" ", $a));

foreach($b as $value) {
print "$value ";
}

?>

Question: What is the output of this code snippet?

<?php

$a = array(0.001 => 'b', .1 => 'c');

print_r($a);

?>

Question: If you wanted a variable containing the letters `A` through `Z`, that allowed you to access each letter independently, which of the following approaches could you use?

Question: What is the output of the following code block?

<?php

$array = array(1 => 0, 2, 3, 4);

array_splice($array, 3, count($array), array_merge(array('x'), array_slice($array, 3)));

print_r($array);

?>

Question: Which key will not be displayed from the following code block?

<?php

$array = array('a' => 'John',
'b' => 'Coggeshall',
'c' => array('d' => 'John',
'e' => 'Smith'));

function display($item, $key) {
print "$key => $item\n";
}

array_walk_recursive($array, "display");

?>

Question: What is the result of the following code snippet?

<?php

$array = array('a' => 'John',
'b' => 'Coggeshall',
'c' => array('d' => 'John',
'e' => 'Smith'));

function something($array) {
extract($array);
return $c['e'];
}

print something($array);
?>