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Basic PHP Quiz - 5

Description: Basic PHP Quiz - 5
Number of Questions: 10
Created by:
Tags: php
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Include files must have the file extension ".inc"

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  1. True

  2. False

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Correct Option: B

In PHP you can use both single quotes ( ' ' ) and double quotes ( " " ) for strings:

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  1. True

  2. False

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Correct Option: A

What is the correct way to include the file "time.inc" ?

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Correct Option: C

What is the correct way to create a function in PHP?

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  1. function myFunction()

  2. new_function myFunction()

  3. create myFunction()

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Correct Option: A

What is the correct way to connect to a MySQL database?

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  1. mysql_open("localhost");

  2. connect_mysql("localhost");

  3. dbopen("localhost");

  4. mysql_connect("localhost");

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Correct Option: D

What is the correct way to add 1 to the $count variable?

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  1. count++;

  2. $count++;

  3. ++count

  4. $count =+1

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Correct Option: B

AI Explanation

To add 1 to the $count variable, the correct way is option B: $count++.

Explanation:

  • Option A: count++ is incorrect because it is missing the $ sign, which is required to reference a variable in most programming languages.
  • Option B: $count++ is correct because it uses the $ sign to reference the variable count and the ++ operator to increment its value by 1.
  • Option C: ++count is also correct, as it increments the value of count by 1 before using it in any other expression.
  • Option D: $count =+1 is incorrect because it uses the assignment operator = instead of the addition operator +. The correct way to increment a variable by 1 using the assignment operator would be $count += 1.

PHP can be run on Microsoft Windows IIS(Internet Information Server):

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  1. True

  2. False

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Correct Option: A

In PHP 5, MySQL support is enabled by default:

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  1. True

  2. False

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Correct Option: B

Which one of these variables has an illegal name?

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  1. $my-Var

  2. $myVar

  3. $my_Var

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Correct Option: A
Explanation:

To determine which variable has an illegal name, we need to understand the rules for variable naming conventions.

In most programming languages, variables can be named using letters, numbers, and underscores. However, there are some restrictions:

  1. The variable name cannot start with a number.
  2. The variable name cannot contain spaces or special characters, except for underscores.

Now let's analyze each option:

A. $my-Var: This variable name uses a hyphen (-) between "my" and "Var". Hyphens are not allowed in variable names in most programming languages, so option A has an illegal name.

B. $myVar: This variable name uses only letters and does not contain any illegal characters. Option B has a legal name.

C. $my_Var: This variable name uses an underscore (_) between "my" and "Var". Underscores are commonly used in variable names and are allowed in most programming languages. Option C has a legal name.

Therefore, the variable with the illegal name is:

The Answer is: A. $my-Var

Which of the following regular expressions will match the string no.no.no?

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  1. no?no?no

  2. no*no*no*

  3. ........

  4. ........

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Correct Option: C
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