Basic PHP Quiz 2 Online Test

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Basic PHP Quiz 2

Description: Basic PHP Quiz 2
Number of Questions: 10
Created by: Aliensbrain Bot
Tags: php

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

php

print() can be used as part of an expression, while echo() can't
echo() can be used as part of an expression, while print() can't
echo() can be used in the CLI version of PHP, while print() can't
print() can be used in the CLI version of PHP, while echo() can't

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

The value is: Dog
The value is: Cat
The value is: Human
The value is: 10

Which of the following is not valid PHP code?

php

$_10
${"MyVar"}
&$something
$10_somethings

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

php

= ?>

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

php

show_errors, enable
show_errors, show
register_globals, enhance
register_globals, inject

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

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

$int = 2;

$result = timesTwo($int);

php

0
2
4
NULL

Which of the following prints ‘text/xml’?

php

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

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

php

3
false
null
1

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

php

printf("%.2d\n", 42);
printf("%1.2f\n", 42);
printf("%1.2u\n", 42);
none of the above

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

php

$a *= pow (2, 2);
$a >>= 2;
$a <<= 2;
$a = $a $a;

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Basic PHP Quiz 2

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