3. (a) A PHP function is defined as follows: function planets ($arr) { if ($arr [1]) { print "Mercury"; } else { for ($i=0; $i <= $arr [2]; $i++) {print $arr [3] [$i]; } } print count ($arr); } Recall that array $arr can be defined using a statement of the form $arr = array (...);

3. (a) A PHP function is defined as follows: function planets ($arr) { if ($arr [1]) { print "Mercury"; } else { for ($i=0; $i <= $arr [2]; $i++) {print $arr [3] [$i]; } } print count ($arr); } Recall that array $arr can be defined using a statement of the form $arr = array (...);

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Declaring and Defining the function

A set of statements, which performs a particular task is called a function. The program gains modularity by using function. The application is quite easy to understand, read, and edit when they are created with functions. The developer/programmer creates a function and uses main() to call the function. Once the function gets executed, the control is transferred to the main program.

Question

(iii)
Give an array $arr such that planets ($arr) prints
Earth Jupiter Saturn
Note: the for loop must do three iterations in case (iii).
- 6-
(iv)
For this case, what is the output of the instruction
print count ($arr);

3.
(a)
A PHP function is defined as follows:
function planets ($arr) {
if ($arr [1]) {
print "Mercury";
}
else {
for ($i=0; $i <= $arr [2]; $i++)
{print $arr [3] [$i];
}
}
print count ($arr);
}
Recall that array $arr can be defined using a statement of the form:
$arr
=
array (...);
(i)
Give an array $arr such that planets ($arr) prints
Mercury
For this case, what is the output of the instruction
print count ($arr);
Give an array $arr such that planets ($arr) prints
Venus
(ii)

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