How to resolve the algorithm Loops/N plus one half step by step in the PHP programming language
How to resolve the algorithm Loops/N plus one half step by step in the PHP programming language
Table of Contents
Problem Statement
Quite often one needs loops which, in the last iteration, execute only part of the loop body. Demonstrate the best way to do this. Write a loop which writes the comma-separated list using separate output statements for the number and the comma from within the body of the loop.
Let's start with the solution:
Step by Step solution about How to resolve the algorithm Loops/N plus one half step by step in the PHP programming language
The provided PHP code is a simple loop that prints the numbers from 1 to 11, separated by commas. The loop runs for 11 iterations, with the value of $i incrementing by 1 each time. Inside the loop, the value of $i is printed to the standard output, followed by a comma. However, when $i reaches the value 10, the loop is exited early using the break
statement. This means that the number 11 is not printed, and the loop terminates after printing the numbers from 1 to 10, separated by commas. Finally, a newline character is printed to the standard output.
Here is a step-by-step breakdown of the code:
-
The
for
loop is initialized with the statementfor ($i = 1; $i <= 11; $i++)
. This statement sets the initial value of$i
to 1, sets the condition$i <= 11
to be checked before each iteration, and increments the value of$i
by 1 after each iteration. -
Inside the loop, the statement
echo $i;
prints the value of$i
to the standard output. -
The statement
if ($i == 10)
checks if the value of$i
is equal to 10. If it is, thebreak;
statement is executed, which exits the loop early. -
If
$i
is not equal to 10, the statementecho ', ';
is executed, which prints a comma followed by a space to the standard output. -
The loop continues to iterate until
$i
reaches the value 10, at which point thebreak
statement is executed and the loop exits. -
Finally, the statement
echo "\n";
prints a newline character to the standard output.
The output of the code is the following:
1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Source code in the php programming language
for ($i = 1; $i <= 11; $i++) {
echo $i;
if ($i == 10)
break;
echo ', ';
}
echo "\n";
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