exit() function?
exit() function in PHP is used to terminate the script execution immediately.
Which of the following statements is true about PHP arrays?
A). PHP arrays can hold values of different data types
B). PHP arrays must have continuous index values
C). PHP arrays are immutable
D). PHP arrays can only store integers
What is the purpose of the PHP print_r() function?
A). To print human-readable information about a variable
B). To redirect output to a file
C). To execute SQL queries
D). To define a function in PHP
Which of the following is a valid PHP constant?
A). MY_CONST
B). $myConst
C). MY_CONST
D). myConst
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 correct way to define a constant in PHP?
A). define('MY_CONST', 'value');
B). $MY_CONST = 'value';
C). const MY_CONST = 'value';
D). MY_CONST = 'value';
Which of the following PHP tags is used to start and end a block of PHP code?
A). <?php ?>
B). <? ?>
C). <script>
D). <php >
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 correct syntax to start a PHP script?
A). <?php
B). <script>
C). <?>
D). <!DOCTYPE php>
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 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