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Questions and Answers
How do you define a function in PHP?
How do you define a function in PHP?
- functionName(parameters) {function body}
- function {function body}
- data type functionName(parameters) {function body}
- function functionName(parameters) {function body} (correct)
What is the output of the following PHP code: $x = 3; $y = 5; $z = $x + $y; echo $z;
What is the output of the following PHP code: $x = 3; $y = 5; $z = $x + $y; echo $z;
- $z
- 1
- 8
- 15 (correct)
Which superglobal variable is used to collect form data sent with both the GET and POST methods?
Which superglobal variable is used to collect form data sent with both the GET and POST methods?
- $_BOTH
- $_REQUEST (correct)
- $BOTH
- $REQUEST
What does isEven(5) return?
What does isEven(5) return?
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Which PHP function is used to connect to a MySQL database?
Which PHP function is used to connect to a MySQL database?
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Study Notes
Defining a Function in PHP
- To define a function in PHP, use the syntax:
function functionName(parameters) {function body}
PHP Code Output
- The output of the given PHP code is not specified, as the code is not provided
Collecting Form Data in PHP
- The
$_REQUESTsuperglobal variable is used to collect form data sent with both the GET and POST methods
PHP Function Return Values
- The
isEven($num)function returns a boolean value (true or false) indicating whether the input number is even isEven(5)would returnfalsebecause 5 is an odd number
Connecting to a MySQL Database in PHP
- To connect to a MySQL database in PHP, use the
mysqli_connect()function (recommended) ormysql_connect()function (deprecated)
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Test your knowledge of PHP programming concepts, including function definition, variable usage, and form data collection.
