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Basic PHP Quiz 2

Description: Basic PHP Quiz 2
Number of Questions: 10
Created by:
Tags: php
Attempted 0/10 Correct 0 Score 0

What is the difference between print() and echo()?

php
  1. print() can be used as part of an expression, while echo() can't

  2. echo() can be used as part of an expression, while print() can't

  3. echo() can be used in the CLI version of PHP, while print() can't

  4. print() can be used in the CLI version of PHP, while echo() can't


Correct Option: A

What is displayed when the following script is executed?

define(myvalue, "10");
$myarray[10] = "Dog";
$myarray[] = "Human";
$myarray['myvalue'] = "Cat";
$myarray["Dog"] = "Cat";
print "The value is: ";
print $myarray[myvalue]."\\n";
php
  1. The value is: Dog

  2. The value is: Cat

  3. The value is: Human

  4. The value is: 10


Correct Option: A

Which of the following is not valid PHP code?

php
  1. $_10

  2. ${"MyVar"}

  3. &$something

  4. $10_somethings


Correct Option: D

Which of the following tags is not a valid way to begin and end a PHP code block?

php
  1. = ?>


Correct Option: D

When turned on, __________ will __________ your script with different variables from HTML forms and cookies.

php
  1. show_errors, enable

  2. show_errors, show

  3. register_globals, enhance

  4. register_globals, inject


Correct Option: D

What is the value of $result in the following PHP code?

function timesTwo($int)
{
  $int = $int * 2;
}

$int = 2;

$result = timesTwo($int);
php
  1. 0

  2. 2

  3. 4

  4. NULL


Correct Option: D

Which of the following prints ‘text/xml’?

php
  1. print substr($text, strchr($text, ':'));

  2. print substr($text, strchr($text, ':') 1);

  3. print substr($text, strpos($text, ':') 1);

  4. print substr($text, strpos($text, ':') 2);


Correct Option: D

What does echo count (“123?) print out?

php
  1. 3

  2. false

  3. null

  4. 1


Correct Option: D

Which of the following snippets prints a representation of 42 with two decimal places?

php
  1. printf("%.2d\n", 42);

  2. printf("%1.2f\n", 42);

  3. printf("%1.2u\n", 42);

  4. none of the above


Correct Option: B

Which of the following expressions multiply the value of the integer variable $a by 4?

php
  1. $a *= pow (2, 2);

  2. $a >>= 2;

  3. $a <<= 2;

  4. $a = $a $a;


Correct Option: A,C
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