What does the phpinfo() function do in PHP?

Which of the following is a valid PHP constant?

A). MY_CONST

B). $myConst

C). MY_CONST

D). myConst

What is the correct syntax to start a PHP script?

A). <?php

B). <script>

C). <?>

D). <!DOCTYPE php>

What is the purpose of the PHP unset() function?

A). To destroy a specified variable

B). To create an array in PHP

C). To execute SQL queries

D). To define a function in PHP

What is the purpose of the PHP die() function?

A). To terminate the script execution and display a message

B). To print output to the browser

C). To create a loop in PHP

D). To define a function in PHP

Which of the following is NOT a valid PHP comparison operator?

A). <=

B). ==

C). <>

D). !

What does the strlen() function do in PHP?

A). Returns the length of a string

B). Converts a string to lowercase

C). Checks if a string contains a substring

D). Returns the first occurrence of a substring in a string

Which of the following is true about PHP data types?

A). PHP is a strongly typed language

B). Variables must be explicitly declared with data types

C). PHP supports dynamic typing

D). PHP only supports numeric data types

Which of the following is true about PHP variables?

A). Variables must be declared before use

B). Variable names are case-insensitive

C). Variables cannot be reassigned

D). Variables can only store integers

What does the PHP statement echo 'Hello, World!'; do?

A). Prints 'Hello, World!' to the browser

B). Declares a variable named 'Hello, World!'

C). Performs a calculation

D). Defines a function named 'Hello, World!'

What is the purpose of the PHP include statement?

A). To include and evaluate an external PHP file

B). To create a loop in PHP

C). To define a function in PHP

D). To execute a SQL query